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Shock Absorber Parts REAR
By OE Match
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
Restore the rear suspension top mount area of your Porsche 981 Boxster with this comprehensive overhaul kit. Designed for the rear shock/strut top mount region to replace worn or fatigued top-mount hardware.
Fits:
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
Diagram Ref No 2, 3, 4, 7, 8, 9, 10
What This Product Does:
- The rear shock absorber top mount secures the top of the shock or strut assembly to the vehicle body or rear suspension tower. It ensures the damper is correctly located and loaded, and helps absorb vibrations, maintain correct geometry and isolate noise.
- Over time, mounts, washers, nuts and associated hardware fatigue – the mount may sag or shift, washers may wear, the nut may loosen, the bearing (if present) may wear. This reduces suspension precision, can introduce noise (clunks, creaks) and affects handling.
- This kit replaces the top mount nut, washers, mount components and related hardware — restoring the top of the damper assembly to like-new spec, which supports ride quality, handling, durability and quiet operation.
When You Should Consider Replacement:
- Knocking or clunking noises from the rear strut top area when accelerating, decelerating or going over bumps.
- Poor ride quality at the rear, increased vibration or a feeling of looseness in the rear suspension.
- Inconsistent handling or rear feel: e.g., rear end doesn’t feel as controlled or stable in corners.
- You are replacing/rebuilding your rear dampers/shocks or springs: since the top mount hardware is removed anyway, replacing it is efficient and recommended.
- Visible damage or wear: If mount washers are deformed, nuts show signs of loosening, or the mount has shifted — an overhaul kit helps restore it properly.
Why Replacement Matters:
- Restores rear suspension integrity & performance: The top mount plays a key role in how the rear damper responds. A worn mount allows movement or misalignment, reducing tyre contact and degrading handling.
- Eliminates noise and improves comfort: A compromised mount is often the source of rear knocks, rattles or increased harshness — replacing the kit removes this weak link.
- Prevents further damage: If the mount hardware fails, the stress transfers to other components: damper shaft, body mount, spring seat — renewing the top mount stops further failure.
- Cost-effective when servicing: When the shock assembly is out for service, installing the full mount kit avoids future labour for what is essentially an ageing item.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT981-RR-1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 981 Spyder 3.8L 2016
Restore the top mount of your Porsche 981 Boxster Spyder's rear shock/strut assembly with this full overhaul kit. Designed to fully renew the upper mounting interface.
Fits:
- Porsche Boxster 981 Spyder 3.8L 2016
Diagram Ref No 2, 3, 4, 5, 6, 7, 8, 9, 11
What This Product Does:
- The top mount (upper mount) of the shock/strut assembly is critical: it secures the top of the damper to the vehicle’s body/strut tower, supports the spring/damper load, and ensures correct alignment and isolation of vibration or noise.
- Over time, mounts/washers/nuts can corrode, loosen, rubber can deteriorate (if included), or tolerances may degrade, leading to movement, noise, vibration or alignment issues. Replacing the full kit restores the interface — ensuring the shock absorber is properly anchored, loads are contained, and suspension geometry/behaviour maintained.
When You Should Consider Replacement:
- Clunking, knocking or popping noises from the rear strut top area when driving over bumps, or when the suspension unloads/loads.
- Excessive vibration or “thunk” from the rear when cornering or braking — indicating the top mount might be giving way.
- Poor rear suspension feel / looseness in the rear – drifting feel, less precise handling than before.
- Visual signs of wear – if you inspect the top mount area and find nut is loose, washers/show signs of corrosion, the cap or mount plate is damaged, or the mount has had previous repair.
- During a shock absorber/strut replacement or rear suspension refresh – if you have the unit removed, it is highly efficient to replace the top mount kit at the same time, rather than later.
- Preserves handling & ride quality: A solid top mount ensures the damper is correctly loaded and held; any looseness or deterioration will degrade ride feel, stability, tyre contact patch and overall rear suspension behaviour.
- Reduces noise, vibration & harshness (NVH): A failing top mount often transmits odd noises into the cabin — in a performance car like a Porsche, that detracts significantly.
- Prevents further damage: If the mount fails, loads may transfer into the shock, spring seat or body structure incorrectly, leading to bigger and more expensive repairs.
- Cost-effective proactive maintenance: When the top mount hardware is accessible (e.g. during shock replacement), replacing the full kit now avoids needing to disassemble again later for mount failure.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT981SP-RR-1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Ensure your Porsche’s rear suspension is fit for purpose with this complete top mount & overhaul kit for the rear shock absorber. Ideal for models requiring replacement of the shock top mount and associated hardware.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Diagram Ref No 2, 3, 4, 5, 7, 8, 9, 10
What This Product Does:
- The rear shock absorber top mount (upper mount) secures the top of the rear shock/strut assembly to the body tub/strut tower. It absorbs loads from the damper, isolates vibration/noise, and ensures the correct location and angle of the damper under load.
- Over time, the mount rubber or elastomer may degrade, the bearing (if present) may wear, bolts and nuts may become corroded or fatigued, and the mount may allow excess movement. This causes noise, poorer handling, mis-alignment of the suspension and degraded ride comfort.In effect: you’re restoring the top link between the rear damper and the chassis, so that the suspension behaves correctly under load, the damper is properly located, and unwanted movement or noise is eliminated.
Signs & When You May Need Replacement:
- Knocking, clunking or popping noises coming from the rear strut tower/tower area when driving over bumps, especially rear of vehicle.
- Excessive vibration or noise from the rear when driving, particularly when the chassis or rear suspension moves under load.
- Poor ride quality or handling changes: feeling loose at the rear, rear end dancing, less precision in the rear cornering behaviour.
- Visible signs of mount degradation: If you inspect the mount and see rubber cracking, flattening, separation, or the mount bearing (if present) is seized or has play.
- During a rear shock/strut replacement: If you are replacing the rear dampers or springs, the top mount hardware is often removed anyway—so replacing the mount and all associated hardware is efficient preventive maintenance.
- Corrosion or fatigue: If the top mount area of your model is subject to corrosion, bolt/nut fatigue, or the original mount has high mileage, then an overhaul kit is wise to avoid future failure.
- Restores correct suspension geometry & performance: The rear shock mount is key to how the suspension loads and unloads. A worn mount allows movement under load, which reduces handling precision, tyre contact and ride quality.
- Eliminates noise & improves ride comfort: A compromised mount/ bearing often manifests as irritating noises, vibrations or harshness. Replacing with a full kit ensures the source of these issues is addressed.
- Prevents further component damage: If the mount is loose or has excessive play, the shock/strut shaft may be loaded in unintended directions, or the top mount flange may stress the chassis mount area. Replacing the mount prevents subsequent damage to damper, spring seat, tower sheet metal or other suspension parts.
- Cost-effective timing: Because the top mount is accessed when performing rear suspension work (dampers/springs), replacing it simultaneously avoids repeated labor costs and ensures you’ve covered the entire assembly.
- Safety and reliability: A failed top mount might cause suspension to shift under load, affect vehicle stability or even cause binding/separation. Replacing it is part of maintaining safe chassis operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT986-RR-1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Ensure the rear of your Porsche remains dialled in with this full top-mount overhaul kit for the rear shock/strut assembly. This comprehensive kit includes the upper mount, bearing/bushing, washers and hardware and is designed for direct replacement of worn or fatigued rear mount assemblies.
Fits:
- Porsche Boxster 987 2.7L 2006 -08/08 Cars with PASM
- Porsche Boxster 987 S 3.2/3.4L 2006-08/08 Cars with PASM
Diagram Ref No 2, 3, 4, 5, 7, 8, 9
What This Product Does:
- The top mount supports the top of the shock/strut: it holds it firmly in place while carrying the loads from the damper, spring and suspension movement. It also helps isolate unwanted noise/vibration from the car body.
- Over time the rubber mount may compress, degrade or split; the bearing/bushings may have play; hardware may have fatigue or corrosion. This causes unwanted movement, noise, ride/handling degradation.
- This overhaul kit replaces the mount and all associated hardware so the top of the damper is restored to correct geometry, correct mount stiffness and correct isolation.
Key Symptoms & When You Should Replace:
- Knocking, clunking or popping noises from the rear suspension when going over bumps or during load changes.
- Rear ride quality has deteriorated: more harshness, more vibration, or the rear feels “loose” or vague under cornering.
- Rear tyre wear or handling feel issues which could be caused by mount movement.
- You are already replacing rear shocks/struts or doing significant rear suspension work — this is an ideal time to renew the top mounts as preventative maintenance.
- Mount hardware is visibly degraded, bushings worn, or mount top plate shows signs of fatigue or rust.
Why Replacement Matters:
- Restores rear suspension performance & precision: A worn top mount allows unintended movement under load, which reduces handling precision, tyre contact and can degrade stability — especially important in a performance-oriented car.
- Eliminates noise & vibration: A tired mount often produces noise: clunks, creaks or vibrations. A fresh mount kit restores quiet operation.
- Prevents further damage: If the mount fails, the extra movement can lead to wear of the damper shaft, spring seat, or even cause damage to the strut tower or body mounting point.
- Efficient maintenance: Since access to the top mount is easiest when the rear damper is out or suspension is disassembled, doing the full kit replacement while you’re doing other rear suspension work is cost-effective.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT987-RR-2
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Ensure the rear of your Porsche remains dialled in with this full top-mount overhaul kit for the rear shock/strut assembly. This comprehensive kit includes the upper mount, bearing/bushing, washers and hardware and is designed for direct replacement of worn or fatigued rear mount assemblies.
Fits:
- Porsche Boxster 987 2.7L 2006 -08/08 Cars without PASM
- Porsche Boxster 987 S 3.2/3.4L 2006-08/08 Cars without PASM
Diagram Ref No 2, 3, 4, 5, 7, 8, 9
What This Product Does:
- The top mount supports the top of the shock/strut: it holds it firmly in place while carrying the loads from the damper, spring and suspension movement. It also helps isolate unwanted noise/vibration from the car body.
- Over time the rubber mount may compress, degrade or split; the bearing/bushings may have play; hardware may have fatigue or corrosion. This causes unwanted movement, noise, ride/handling degradation.
- This overhaul kit replaces the mount and all associated hardware so the top of the damper is restored to correct geometry, correct mount stiffness and correct isolation.
Key Symptoms & When You Should Replace:
- Knocking, clunking or popping noises from the rear suspension when going over bumps or during load changes.
- Rear ride quality has deteriorated: more harshness, more vibration, or the rear feels “loose” or vague under cornering.
- Rear tyre wear or handling feel issues which could be caused by mount movement.
- You are already replacing rear shocks/struts or doing significant rear suspension work — this is an ideal time to renew the top mounts as preventative maintenance.
- Mount hardware is visibly degraded, bushings worn, or mount top plate shows signs of fatigue or rust.
Why Replacement Matters:
- Restores rear suspension performance & precision: A worn top mount allows unintended movement under load, which reduces handling precision, tyre contact and can degrade stability — especially important in a performance-oriented car.
- Eliminates noise & vibration: A tired mount often produces noise: clunks, creaks or vibrations. A fresh mount kit restores quiet operation.
- Prevents further damage: If the mount fails, the extra movement can lead to wear of the damper shaft, spring seat, or even cause damage to the strut tower or body mounting point.
- Efficient maintenance: Since access to the top mount is easiest when the rear damper is out or suspension is disassembled, doing the full kit replacement while you’re doing other rear suspension work is cost-effective.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT987-RR-1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Ensure your Porsche 987.2 Boxster rear suspension remains at its best with this comprehensive overhaul kit designed for the rear shock absorber top mount region. This kit restores the mount that secures your damper to the chassis, eliminating movement, noise and restoring handling precision.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-2012 (For Cars With PASM)
- Porsche Boxster S 987 MKII 3.4L 2009-2012 (For Cars With PASM)
Diagram Ref No 2, 3, 4, 5, 7, 8, 9
What This Product Does:
- The rear shock absorber top mount (sometimes called the strut mount) attaches the top of the rear damper/strut to the vehicle’s body or suspension tower. It carries the load from the spring/damper, secures the strut in correct vertical position and isolates road noise/vibration.
- Over time the mount rubber can degrade (crack, compress, wear), the bearing (if present) can develop play, the studs or hardware may corrode — leading to unwanted movement, noise, poor rear suspension behaviour or handling issues.
- The overhaul kit replaces the mount and all relevant hardware/fasteners so that the damper top-interface is renewed and restored, ensuring correct alignment, proper isolation and solid connection.
- A tired mount or bearing often causes knocking or creaking from the rear suspension—replacing the mount/kit cures these NVH (noise, vibration, harshness) symptoms.
- If the mount is compromised, it can increase stress on the shock absorber rod, spring seat, or mount tower. Renewing the mount protects those components.
Why Replacement Matters:
- Restores rear suspension performance & precision: The top mount is key to how the rear suspension reacts under load. When worn, the mount may flex or move under cornering/braking, reducing tyre contact, upsetting alignment and degrading handling.
- Cost‐efficient approach: If you're already undertaking rear suspension work (shock/strut replacement or spring change), replacing the mount and hardware at the same time avoids repeat labour and future issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT987.2-RR-2
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
Ensure your Porsche 987.2 Boxster rear suspension remains at its best with this comprehensive overhaul kit designed for the rear shock absorber top mount region. This kit restores the mount that secures your damper to the chassis, eliminating movement, noise and restoring handling precision.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-2012 (For Cars Without PASM)
- Porsche Boxster S 987 MKII 3.4L 2009-2012 (For Cars Without PASM)
Diagram Ref No 2, 3, 4, 5, 7, 8, 9
What This Product Does:
- The rear shock absorber top mount (sometimes called the strut mount) attaches the top of the rear damper/strut to the vehicle’s body or suspension tower. It carries the load from the spring/damper, secures the strut in correct vertical position and isolates road noise/vibration.
- Over time the mount rubber can degrade (crack, compress, wear), the bearing (if present) can develop play, the studs or hardware may corrode — leading to unwanted movement, noise, poor rear suspension behaviour or handling issues.
- The overhaul kit replaces the mount and all relevant hardware/fasteners so that the damper top-interface is renewed and restored, ensuring correct alignment, proper isolation and solid connection.
- A tired mount or bearing often causes knocking or creaking from the rear suspension—replacing the mount/kit cures these NVH (noise, vibration, harshness) symptoms.
- If the mount is compromised, it can increase stress on the shock absorber rod, spring seat, or mount tower. Renewing the mount protects those components.
Why Replacement Matters:
- Restores rear suspension performance & precision: The top mount is key to how the rear suspension reacts under load. When worn, the mount may flex or move under cornering/braking, reducing tyre contact, upsetting alignment and degrading handling.
- Cost‐efficient approach: If you're already undertaking rear suspension work (shock/strut replacement or spring change), replacing the mount and hardware at the same time avoids repeat labour and future issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT987.2-RR-1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
Suitable for all 986 Boxster 2.5L / 2.7L models with a 5-speed manual transmission, excluding those with sports suspension (PR 030).
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-02
Kit Contents:
2x OE Match Shock Absorbers (Standard Replacement)
2x OE Match Top Mounts
6x OE Match M8 Lock Nuts for Top Mounts
2x OE Match Shock Absorber Compensating Plates (3mm)
4x OE Match Upper & Lower Stop Plates / Washers
2x OE Match Coil Springs (Standard Replacement)
1x OE Match Bump Stop & Dust Cover Kit
2x OE Match M14 x 1.5 Nuts for Shock Absorbers
2x Genuine Porsche Shock Absorber Compensating Plates (6mm)
2x Genuine Porsche Coil Spring Support Rings
2x Genuine Porsche Seal Rings for Top Mounts
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT986-RR
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Price is for BOTH SIDES
Please also add top mounts if you required them

Including shock absorber Bellow, Bump Stop, supporting plate, Compensating plate, Washers & Nut.
Fits:
Porsche 986 Boxster 1997-04
Parts Diagram ref No's 3, 4, 5, 7, 8, 9, 10.
Related reference numbers
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SUSPENSIONKIT14X
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
SET OF 2

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2005>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
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98733305900
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Rear

Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Old Porsche part numbers:
- 98633350402
- 98733350400
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98633350402
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Rear axle.
Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005
Diagram ref no 8
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98633330101
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12


Porsche 987 MKII Boxster 2009>>
Porsche 987C MKII Cayman 2009>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
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98733330101
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
The replacement helper spring / bump stop assembly for the rear shock absorber on Porsche 987 Boxster and Cayman vehicles. This bump stop is designed to sit atop or within the rear shock/strut assembly, supporting the suspension’s load under compression, preventing harsh bottoming, and helping maintain ride height and handling balance. Manufactured to match Porsche’s original specification in terms of dimensions and elasticity.

Porsche 987 Boxster 2006 - 2008
Porsche 987 MKII Boxster 2009 - 2012
Porsche 987C Cayman 2005 - 2008
Porsche 987C MKII Cayman 2009 - 2012
Porsche 718C (982C) Cayman 2017>>
Porsche 718 (982) Boxster 2017>>
Diagram ref no 8
• Position on Vehicle: Rear suspension, installed within or adjacent to the shock absorber/strut assembly on the rear axle - acts as secondary support (helper spring) or as bump stop to cushion full compression of the suspension.
• Applications: Ideal when your rear suspension exhibits signs of bottoming, excessive squat under load, or the helper-spring/bump stop is missing, fatigued or deformed - improving ride quality, maintaining correct ride height, and preserving handling performance.
The helper spring / bump stop is a critical yet often overlooked component of the rear suspension system. It steps in under heavier loads, sharp compressions or lowered ride-height scenarios to prevent suspension harsh-bottoming, maintain ride height and preserve handling geometry. When the part is worn or missing, you may experience a harsh “clunk” on full compression, inconsistent ride height, rear suspension instability or accelerated wear of other suspension components. Replacing it restores correct support, prolongs suspension life and ensures your car handles the way it was engineered.
When and why to replace:
• Rear suspension bottoms out prematurely under moderate load or when cornering.
• Noticeable change in ride height, rear sagging or uneven posture under load.
• After replacement of rear shock absorbers or other suspension components where the helper spring/bump stop may have been removed or reused.
• High-mileage vehicle where the original component may have degraded or compressed with age.
• If you have lowered or modified your suspension and want to ensure secondary support matches the rest of the system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98733330100
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
SET OF 4 PARTS

Porsche 987 Boxster 2006-08
Porsche 987C Cayman 2005-08
Porsche 987 MKII Boxster 2009-12 Cars with PASM (M475)
Porsche 987C MKII Cayman 2009-12 Cars with PASM (M475)
Diagram ref no 7 and 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98733330100
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
SET OF 4 PARTS
Fits:

Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005
Diagram ref no 7 and 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98633350501
The product you are viewing cross references to these numbers
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exhaust system M 96.20 for 986 Boxster 1997-04 202-00
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exhaust system for 986 Boxster M 96.21/22 2000-02 and 986 Boxster M 96.23/24 2003 ONWARDS 202-05
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manual transmission: transmission suspension, threaded joint, engine for 986 Boxster G86.01 UPTO 1999 and 986 Boxster G86.01 2000 ONWARDS 306-00
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tiptronic: transmission suspension, threaded joint, engine for 986 Boxster A86.00 1997-99, 986 Boxster A86.05 2000-04 and 986 Boxster S A86.20 2000-04 370-00
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cross member wishbone 986 Boxster 1997-04 401-00
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suspension: shock absorber strut 986 Boxster 1997-04 402-00
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rear axle, wheel carrier, control arm and wheel hub for 986 Boxster 1997-04 501-00
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rear axle, side section, bracket 986 Boxster 1997-04 501-01
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shock absorber coil spring 986 Boxster 1997-04 502-00
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brake master cylinder, brake booster, pre-charge pump 986 Boxster 1997-04 604-00
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handbrake actuator 986 Boxster 1997-04 701-05
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pedals 986 Boxster 1998 ONWARDS 702-01
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exhaust system 987 Boxster / Boxster S 2005-08 202-00
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5th-speed manual transmission (I481), transmission suspension threaded joint for engine 987 Boxster M96.25 and M97.20 2005-08 306-00
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6-speed manual transmission (I480), transmission suspension threaded joint engine for 987 Boxster / Boxster S 2005-08 306-01
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tiptronic (I249) transmission suspension threaded joint for engine 370-00
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cross member wishbone 987 Boxster / Boxster S 2005-08 401-00
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suspension shock, absorber strut 987 Boxster / Boxster S 2005-08 402-00
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rear axle, wheel carrier, control arm and wheel hub 987 Boxster / Boxster S 2005-08 501-00
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shock absorber coil spring 987 Boxster / Boxster S 2005-08 502-00
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pedals 987 Boxster / Boxster S 2005-08 702-00
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battery, power distributor, starter, generator 987 Boxster / Boxster S 2005-08 902-05
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battery, power distributor, starter, generator 986 Boxster / Boxster S 1997-04 902-05
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Water cooling 3 (Model: A120,A121) 987.2 Boxster / Boxster S 2009-12 105-015
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Exhaust system 987.2 Boxster / Boxster S 2009-12 202-000
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Manual gearbox / Transmission suspension / Threaded joint / Engine (Model: A120,A121+ PR:480) 987.2 Boxster / Boxster S 2009-12 306-000
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- PDK - Gearbox / Transmission suspension / Threaded joint for Engine (Model: A120,A121+ PR:250) 987.2 Boxster / Boxster S 2009-12 370-000
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Cross member / Wishbone 987.2 Boxster / Boxster S 2009-12 401-000
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Suspension / Shock absorber strut 987.2 Boxster / Boxster S 2009-12 402-000
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Rear axle / Wheel carrier / Guide / Wheel hub987.2 Boxster / Boxster S 2009-12 501-000
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Shock absorbers / Coil spring 987.2 Boxster / Boxster S 2009-12 502-000
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Battery / Power distributor / Starter / Alternator 987.2 Boxster / Boxster S 2009-12 902-005
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Water cooling / Water reservoir / Oil inlet 981 Boxster / Boxster S 2012-16 105-020
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Water cooling / Water reservoir / Oil inlet 981 Boxster / Boxster S 2012-16 105-020
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Transmission suspension / Threaded joint / Engine 981 Boxster / Boxster S 2012-16 306-000
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Cross member / Wishbone 981 Boxster / Boxster S 2012-16 401-000
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Vibration damper 981 Boxster / Boxster S 2012-16 402-000
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Rear axle / Side part / Carrier / Guide 981 Boxster / Boxster S 2012-16 501-001
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Shock absorbers / Coil spring 981 Boxster / Boxster S 2012-16 502-000
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Bungs 981 Boxster / Boxster S 2012-16 801-002
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Door seal and Trim 981 Boxster / Boxster S 2012-16 804-010
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Battery / Power distributor 981 Boxster / Boxster S 2012-16 902-006
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Water cooling / Water reservoir / Oil inlet 981.SP Boxster Spyder 2016 105-020
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Transmission suspension / Threaded joint / Engine 981.SP Boxster Spyder 2016 306-000
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Cross member / Wishbone 981.SP Boxster Spyder 2016 401-000
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Vibration damper 981.SP Boxster Spyder 2016 402-000
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Rear axle / Side part / Carrier / Guide 981.SP Boxster Spyder 2016 501-001
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Shock absorbers / Coil spring 981.SP Boxster Spyder 2016 502-000
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Bungs 981.SP Boxster Spyder 2016 801-002
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Door seal and Trim 981.SP Boxster Spyder 2016 804-010
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Interior mirror / Exterior mirror (PR:529) 981.SP Boxster Spyder 2016 809-050
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Battery / Power distributor 981.SP Boxster Spyder 2016 902-006
OEMatch Shock Absorber Parts — Control, Stability, Comfort
OEMatch shock absorber parts for Porsche models provide replacement components for the vehicle's damping system, chosen to suit model-specific requirements and repair procedures. Many owners search for genuine or OEM shock absorber parts; these are direct-fit alternatives designed to match the original form, fit and function.
Available Types
- Top mounts and bearing plates
- Bump stops and travel limiters
- Dust covers and bellows
- Seals and oil retention components
- Bushes and mounting hardware
Understanding OEMatch Shock Absorber Parts
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original shock absorber parts. OE (Original Equipment) refers to parts matching original specifications for the shock absorber parts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM shock absorber parts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. These rear suspension items include the mounts, seals and protective components that work with the damper body to control vehicle motion and preserve handling characteristics; correct identification and matching to the vehicle are important for reliable reinstatement of ride and control.
Benefits Include
- Restores damping control and ride comfort where worn parts have degraded performance
- Reduces noise and harshness caused by failing mounts or damaged seals
- Helps preserve tyre contact and steering consistency under load
Why Shock Absorber Parts Wear and Fail
- Age and fatigue from repeated compression and extension of seals and mounts
- Contamination or physical damage from road debris, broken dust covers or leaking oil
- Corrosion and loss of lubrication allowing bearings and mounts to seize or degrade
The Importance of Replacing with OEMatch Shock Absorber Parts
Replacing worn or damaged shock absorber parts helps maintain the damping system's intended performance, which supports vehicle stability, braking balance and even tyre wear. Choosing matching replacement parts ensures correct mounting interfaces and sealing to protect the damper; when maintenance affects suspension geometry or hidden fastenings, use correct procedures and parts to avoid introducing handling faults.
Advantages
- Designed for direct compatibility with Porsche model references to simplify identification and fitting
- A range of replacement components that allow targeted repairs without replacing complete dampers where not required
- Catalogued cross-references and part descriptions to aid correct selection for specific model years
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified.