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Control Arm Lower Rear, SET OF 2. Porsche 981 Boxster / 981 Cayman › 98133104303
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- 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 Spyder / Spyder RS 718 4.0L 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 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
This suspension kit includes two rear lower control arms (2 × 98133104303) designed for Porsche 981 / 982 Boxster and Cayman models. Each arm is engineered to the exact specifications of the original Porsche component, providing precise wheel-carrier positioning, correct suspension geometry and balanced handling on both sides of the rear axle.
SET OF 2.

Porsche 981 Boxster 2012 - 2016
Porsche 981C Cayman 2013 - 2016
Porsche 718 (982) Boxster GTS 4.0L 2017>> (PR:006)
Porsche 718C (982C) Cayman GTS 4.0L 2017>> (PR:006)
Diagram ref no 25
• Position on Vehicle: Rear axle — lower control arm (support/fork), left + right
• Function: Controls rear wheel-carrier movement, maintains geometry and supports precise alignment
Replacing both arms as a matched pair ensures the rear suspension behaves consistently on both sides, preventing imbalance caused by uneven bushing wear. It provides equal camber and toe adjustment range, making alignment more accurate and stable. The result is improved rear-end stability, better cornering feel and more even tyre wear.
When and why to replace:
• You experience clunks or knocking from the rear when going over bumps or during cornering.
• Uneven wear on rear tyres or inability to keep rear alignment within spec.
• Bushings or joints show play or corrosion.
• The vehicle is high-mileage or has been subjected to high stress, track use, or suspension removal.
• As part of a full rear-suspension refresh or rebuild.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98133104303
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
Restore precise rear suspension location, alignment and handling with this OE Match Rear Control Arm. Designed for compatible Porsche applications, the rear control arm is a key suspension component that helps locate the wheel assembly relative to the chassis while allowing controlled movement as the suspension travels.
Fits:
Porsche 997 REAR only
Porsche 997 Turbo REAR only
Porsche 997 GT3 MKI 2005>>2009 FRONT and REAR
Porsche 997.2 REAR only
Porsche 997.2 Turbo REAR only
Porsche 997.2 GT3 REAR only
Please click 'Zoom in' to view the diagram (No 17)
The control arm plays an important role in maintaining the intended rear suspension geometry. By controlling the position of the wheel under acceleration, braking and cornering loads, it contributes to predictable handling, tyre contact and vehicle stability.
What This Product Does:
- Locates the rear wheel assembly relative to the chassis.
- Controls wheel movement throughout suspension travel.
- Helps maintain the intended rear suspension geometry.
- Supports correct wheel alignment.
- Helps maintain consistent tyre contact with the road.
- Controls unwanted movement under acceleration and braking.
- Contributes to rear-end stability during cornering.
- Supports predictable steering and handling characteristics.
- Helps maintain correct positioning of associated suspension components.
- Replaces a worn, damaged or distorted rear control arm.
- Provides an OE-style replacement for compatible Porsche applications.
Symptoms Of Wear Or Failure:
- Knocking or clunking from the rear suspension.
- Rattling when travelling over uneven surfaces.
- Excessive play in a control arm joint or bush.
- Rear suspension feeling loose or unstable.
- Vehicle wandering or feeling unsettled at speed.
- Reduced stability during cornering.
- Changes in handling during acceleration or braking.
- Uneven or accelerated rear tyre wear.
- Difficulty achieving or maintaining correct wheel alignment.
- Abnormal rear wheel position or alignment readings.
- Cracked or deteriorated suspension bushes.
- Loose or worn joints.
- Visible bending or deformation of the control arm.
- Corrosion or impact damage.
- Damage discovered during suspension inspection or alignment.
Why Replacement Matters:
- The rear control arm directly influences wheel position and suspension geometry. Excessive play in a worn bush or joint can allow the wheel to move away from its intended position as loads change.
- This unwanted movement can make the rear of the vehicle feel less stable, particularly during cornering, acceleration or braking. On a performance vehicle, relatively small changes in suspension geometry can noticeably affect handling and driver confidence.
- A worn or bent control arm can also make accurate wheel alignment difficult or impossible. Incorrect alignment may cause rapid or uneven tyre wear, reducing tyre life and potentially compromising grip.
- Physical damage is particularly important to address. An arm that has been bent following a pothole, kerb strike or accident may appear relatively minor but can significantly alter wheel geometry.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733104302
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
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- 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
The high-quality replacement built to OE specifications, it delivers the same fit, strength, and performance as the original part. This suspension component connects the wheel hub to the chassis, maintaining proper alignment and ensuring stable handling.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987 Boxster 2005 - 2012
Porsche 987c Cayman 2006 - 2012
Porsche 996 C2 / C4 1997 - 2005
Porsche 996 Turbo 2000 - 2005
Porsche 996 GT3 1999 - 2005
Porsche 997 MKI 2006 - 2009
Porsche 997 GT3 2006 - 2009
Diagram ref no 13
This product supersedes Porsche's old part numbers:
99633104506, 99633104508, 99633104510, 99633104512, 99733104504 , 99633104512
What this product does:
• Provides a secure connection between the chassis and wheel hub
• Maintains wheel alignment for safe, predictable handling
• Absorbs suspension forces while keeping steering precise
Over time, control arms can bend, wear, or develop excessive play in the bushings and ball joints. This can cause uneven tire wear, knocking noises, wheel alignment issues, and a noticeable loss of steering precision. Replacement will restore the correct wheel alignment and suspension stability for which your Porsche was designed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733104505
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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- 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
The high-quality replacement built to OE specifications, it delivers the same fit, strength, and performance as the original part. This suspension component connects the wheel hub to the chassis, maintaining proper alignment and ensuring stable handling.
Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987 Boxster - 2005 to 2012
Porsche 987c Cayman - 2006 to 2012
Porsche 996 C2 / C4 - 1997 to 2005
Porsche 996 turbo - 2000 to 2005
Porsche 996 GT3 - 1999 to 2005
Porsche 997 MKI - 2006 to 2009
Porsche 997 GT3 - 2006 to 2009
Diagram ref no 13
This product supersedes Porsche's old part numbers:
99633104506, 99633104508, 99633104510, 99633104512, 99733104504 , 99633104512
What this product does:
• Provides a secure connection between the chassis and wheel hub
• Maintains wheel alignment for safe, predictable handling
• Absorbs suspension forces while keeping steering precise
Over time, control arms can bend, wear, or develop excessive play in the bushings and ball joints. This can cause uneven tire wear, knocking noises, wheel alignment issues, and a noticeable loss of steering precision. Replacement will restore the correct wheel alignment and suspension stability for which your Porsche was designed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733104505
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 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- 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
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
Fits:
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1
Porsche 987.2 Boxster
Porsche 987C.2 Cayman
Porsche 997.2
There is one sensor on front axle and one sensor on the rear axle. Sold individually.
For cars with option code I601 - Xenon / Litronic headlamps
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99763112101
The product you are viewing cross references to these numbers
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