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Engine Mounts
By OE Match
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
OE Match engine mount set with hardware kits for Porsche 964 Carrera 4 Targa & Cabrio models . This complete installation set includes left and right engine mounts plus the required bolt, washer, and nut hardware kits for both sides.
SET OF 2, with bolts, washers and nuts
Fits:
Porsche 964 C4 1989 – 1993 Targa & Cabrio
Diagram ref no 7, 8, 9 and 10
The engine mounts support the engine in the rear chassis mounting area while helping absorb vibration and control drivetrain movement. The included hardware secures the mounts correctly to the vehicle mounting points, helping ensure a safe, secure, and complete installation.
Suitable for replacing both engine mounts and mounting hardware
Kit Contents
1 x OE Match engine mount — 96537504900
1 x OE Match engine mount — 96537505000
4 x OE Match washers — 96437511000
4 x OE Match bolts M8x45 — 90007413402
2 x OE Match nuts M12x1 — 90038001001
Functions
• Replaces both left and right engine mounts
• Includes fixing hardware kits for both sides
• Helps support the engine correctly
• Helps control engine and drivetrain movement
• Reduces vibration, harshness, and unwanted noise
• Supports correct engine alignment
• Ideal for engine mount replacement, drivetrain service, or restoration
Why Use This Set?
Engine mounts can wear, crack, collapse, soften, or separate due to age, heat, oil contamination, vibration, and drivetrain load. Old mounting hardware can also corrode, seize, stretch, round off, or become damaged during removal. Replacing the engine mounts and hardware together helps restore secure engine support and avoids reusing tired or damaged fixings.
When to Use This Set
• Engine mounts are worn, cracked, collapsed, or oil-soaked
• Engine vibration is felt through the body or cabin
• Knocking or drivetrain movement is present during acceleration or braking
• Gear changes feel harsh or unsettled
• Mounting hardware is corroded, seized, or damaged
• Engine or transmission service is being carried out
• Porsche 964 restoration or maintenance is in progress.
Where it fits on the car
This set fits in the rear engine mounting area on 964 Carrera 4 Targa & Cabrio models. It includes the mounts and hardware required for both left and right engine mount positions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9653750XX00
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
The OE Match Engine Mount Kit is a complete replacement solution for Porsche 993 Coupe and Targa models, including Carrera 2, Carrera 4 (non-Cabrio), and Turbo variants. It includes two OE Match engine mounts along with OE Match bolts and genuine Porsche locknuts for proper installation.
SET OF 2, with bolts, washers and nuts
Fits:
Porsche 993 (911) C2 / C2S 1994 - 1997 not Cabrio
Porsche 993 (911) C4 / C4S 1994 - 1997 not Cabrio
Porsche 993 (911) Turbo 1994 - 1996
Diagram ref no 21, 22 and 10
This complete kit is designed to replace both engine mounts and associated fixing hardware in one package, ensuring a correct and reliable installation.
The kit includes:
• 2 × OE Match engine mounts (99337504909)
• 4 × OE Match bolts (90037805501)
• 2 × Genuine Porsche locknuts (99908421501)
The engine mounts are manufactured to OE specifications, providing the correct balance between support and vibration damping. Built using high-quality elastomer and metal construction, they are designed to withstand heat, load, and long-term use while maintaining consistent performance.
These mounts are suitable for both left and right positions (two required per vehicle) and replace earlier part numbers including 99337504905 and 99337504907.
Including genuine Porsche bolts and locknuts ensures proper torque retention and secure mounting - critical for maintaining drivetrain stability and avoiding issues caused by reused or stretched hardware.
This kit secures the engine to the chassis while isolating vibration and controlling engine movement during driving. It restores smooth operation, reduces noise, and improves overall drivetrain stability.
Replacing both mounts and fixings together ensures consistent performance and eliminates common causes of vibration and misalignment.
Function
• Supports and positions the engine within the chassis
• Absorbs vibration and reduces cabin noise
• Maintains correct drivetrain alignment
• Ensures secure installation with OE-spec hardware
This kit is essential for preserving both performance and comfort in classic Porsche models.
Over time, engine mounts degrade due to heat, load, and material fatigue. This can lead to excessive vibration, engine movement, and reduced driving comfort. Replacing both mounts along with new genuine hardware ensures proper installation, restores smooth engine operation, and protects surrounding drivetrain components from unnecessary stress.
When to replace
• Increased vibration felt in cabin or steering
• Clunking noises during acceleration or gear changes
• Visible wear or deterioration of mounts
• Engine movement or misalignment
• During engine or gearbox service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99337504909
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
These have a rubber Shore rating of 75 and are for standard road use.
Fits:
Porsche 964 C2 / C4 1989-94
Porsche 993 C2 / C4 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
These have a HD rubber Shore rating of 75 and are for performance road and track use
Fits:
Porsche 964 Carrera
Porsche 993 Carrera
Click 'Zoom in' for large parts diagram.
Diagram ref no 7A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
Fits:
Porsche 964 C2 / C4 1990-94 (use with RS style mounts)
Porsche 993 Carrera RS 1995-98
Porsche 964 C2 / C4 1990-94 (use with RS style mounts)
Porsche 993 Carrera RS 1995-98
Diagram Ref No 13, 14, 15 and 16.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
964993MOUNTKIT
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
These have a rubber Shore rating of 65 and are for standard road use
Fits:
Porsche 964 1989 to 1994
Porsche 993 1994 to 1998
Replace your worn, original engine mounts with these RS style, rubber bushed items.
2 Required per car
Diagram ref no 7A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
These have a HD rubber Shore rating of 75 and are for performance road and track use.
Fits:
Porsche 964 1989 to 1994
Porsche 993 1994 to 1998
Replace your worn, original engine mounts with these upgraded RS style, rubber bushed items.
2 Required per car
Click 'Zoom in' for large parts diagram.
Diagram ref no 7A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Fits:
Porsche 964 1989 to 1994
Porsche 993 1994 to 1998
Replace your worn, original engine mounts with these upgraded uniball items.
This performance upgrade reduces engine movement to enhance and improve performance.
Designed for track use.
2 Required per car
Diagram ref no 7A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Improve drivetrain stability and engine support with this OE Match Heavy Duty RS Version Engine Mount Kit, supplied as a set of 2 and manufactured as a direct replacement. Produced to OE-style specifications, these upgraded engine mounts are based on the RS design, offering increased stiffness over standard mounts to provide improved engine control while maintaining excellent durability for both road and fast road applications.
Fits:- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Diagram Ref No 7A
Engine mounts isolate vibration while securely supporting the engine and gearbox within the chassis. Over time, the original rubber mounts can soften, crack, collapse, or separate due to heat, oil contamination, and age. This allows excessive engine movement, affecting gear changes, drivetrain alignment, throttle response, and overall driving refinement. Replacing worn mounts with this Heavy Duty RS Version kit restores proper engine location and provides enhanced drivetrain stability. This OE Match kit is ideal for routine maintenance, performance upgrades, repairs, and Porsche restoration projects.
What This Product Does:
- Securely supports the engine within the chassis.
- Reduces excessive engine and drivetrain movement.
- Improves drivetrain stability during acceleration and braking.
- Enhances gearshift precision by maintaining engine alignment.
- Offers increased stiffness compared to standard engine mounts.
- Replaces worn, collapsed, or deteriorated original mounts.
- Provides an OE-style fit and dependable quality.
Symptoms Of Wear Or Failure:
- Excessive engine movement under acceleration or braking.
- Increased drivetrain vibration.
- Clunking or knocking from the rear of the vehicle.
- Poor or inconsistent gear selection.
- Sagging or collapsed engine mounts.
- Cracked, split, or oil-contaminated rubber.
- Visible separation of the rubber from the mount housing.
- Age-related deterioration of the original mounts.
Why Replacement Matters:
- The engine mounts play a vital role in supporting the engine while isolating vibration and controlling drivetrain movement. Worn or collapsed mounts allow excessive engine movement, which can affect handling, gearshift quality, drivetrain alignment, and place additional stress on surrounding components.
- Replacing the original mounts with this Heavy Duty RS Version kit restores secure engine support while providing the firmer control associated with the RS specification. The result is improved drivetrain stability, more precise gear changes, and increased confidence during spirited driving. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match engine mount kit provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, performance upgrades, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381KIT
The product you are viewing cross references to these numbers
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
OE Match engine mounts for the Porsche 964 C4 Targa and Cabriolet from 1989–93 and the Porsche 993 C2 Cabriolet. These replacement mounts help locate the rear-mounted engine correctly while limiting unwanted drivetrain movement and vibration.
Fits:
Porsche 964 C4 1989 – 1993 Targa & Cabrio
Porsche 993 C2 1995 – 1998 Cabrio
Diagram ref no 7
What This Product Does
Engine mounts connect the engine assembly to the vehicle structure while isolating vibration that could otherwise pass into the body and cabin. They also control movement as torque loads change during acceleration, deceleration and gear changes.
Functions
- Supports and positions the engine within the chassis
- Controls movement under changing drivetrain loads
- Helps isolate engine vibration from the body
- Maintains suitable alignment with connected drivetrain components
- Reduces unnecessary strain on exhaust joints, hoses and wiring
Technical Details
- Brand: OE Match
- Part type: engine mounting
- Left reference: 96537504900
- Right reference: 96537505000
- Left and right mounts use separate references; confirm the required side before ordering
Symptoms of Fault
- Increased vibration inside the cabin, particularly at idle
- Clunking or thumping when engaging gear or changing throttle position
- Excessive engine movement during inspection
- Drivetrain shunt during acceleration or deceleration
- Exhaust contact or knocking caused by additional movement
- Visible sagging, cracking or deterioration of the existing mount
Why Replacement Matters
A worn engine mount may no longer control the drivetrain effectively, allowing vibration and movement to increase. Renewing the affected mount can restore more secure engine location and reduce stress on nearby hoses, wiring, brackets and exhaust connections. OE Match components are catalogued against OE references to assist with selecting the correct application and side.
FAQs
- Will replacement reduce vibration?
If deteriorated mounts are causing additional vibration, fitting the correct replacements can help restore normal isolation and engine support. - Should both mounts be inspected?
Yes. The mounts operate together, so the opposite side and associated fixings should be checked for wear during installation. - How do I confirm the correct version?
Check the Porsche model, body style, year, required side and OE reference before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9653750
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
This is a hydro-elastic (fluid-filled) engine mount. It replaces earlier part numbers including 99337504905 and 99337504907, and is suitable for installation on either the left or right side.
Sold individually, two required per vehicle
Fits:
Porsche 993 (911) C2 1994 - 1997 (not Cabrio)
Porsche 993 (911) C4 1994 - 1997
Porsche 993 (911) C2S 1994 - 1997
Porsche 993 (911) C4S 1994 - 1997
Porsche 993 (911) TURBO 1994 - 1996
Porsche 996 TURBO 2000 - 2005
Porsche 996 GT2 2001 - 2005
Diagram Ref No 2.
Why Replace It, Engine mounts are crucial for:
• Locating and supporting the engine
• Absorbing vibration and engine torque under acceleration, braking, and cornering
• When this mount deteriorates or fails, you can expect, Increased vibration transmitted to the cabin, steering, or pedals
• Clunks, bangs, or loud noises during acceleration, deceleration, or gear changes from engine movement against the chassis
• Visual signs such as leaking black fluid from the mount, sagging of tailpipes (due to dropped mounting), or visible damage to rubber or metal components
Common Failure Causes:
• Age-related rubber degradation: over time, rubber hardens, cracks or de-bonds, causing loss of damping and allowing engine movement
• Fluid leakage (hydraulic version): loss of damping fluid due to seal failure accelerates failure
• Fluid contamination: oil, coolant, or other contaminants degrade the rubber material
• Vehicle abuse or stress: aggressive driving, hard launches, or previous accidents can warp or break mounts
• Worn or cracked brackets: even if the rubber is intact, the aluminium bracket can be damaged or corroded, reducing effectiveness
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99337504909
The product you are viewing cross references to these numbers
OEMatch Engine Mounts — Durability, Sealing, Performance
Engine mounts secure the engine to the chassis while damping vibration and maintaining drivetrain alignment. For Porsche models, OEMatch Engine Mounts are selected to restore stability and reduce transmitted vibration, helping to preserve handling precision and protect connected components during everyday and spirited use.
Available Types
- High-grade rubber engine mounts
- Performance polyurethane mounts
- Reinforced composite mounts
- Hydraulic or fluid-filled mounts where specified by model
Understanding OEMatch Engine Mounts
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original engine mounts.
OE (Original Equipment) refers to parts matching original specifications for the engine mounts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM engine mounts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Engine mounts hold the engine and transmission in the correct position while isolating vibration from the cabin and drivetrain. Different constructions balance isolation and control: rubber absorbs vibration, polyurethane can offer firmer control, and reinforced composites aim to combine strength with damping. OEMatch focuses on engine-mount items selected for Porsche applications to support correct fit and function.
Benefits Include
- Restores drivetrain stability and precise engine positioning
- Reduces vibration and harshness for improved cabin comfort
- Protects hoses, wiring and exhaust connections from excess movement
Why Engine Mounts Wear and Fail
- Material fatigue from repeated heat cycling and age
- Oil or fluid contamination that softens rubber or polymer parts
- Excessive engine torque or vibration, especially on modified or high-mileage engines
- Corrosion or cracking in metal brackets and mounting hardware
The Importance of Replacing with OEMatch Engine Mounts
Replacing worn engine mounts maintains accurate engine positioning and reduces secondary stresses that can accelerate wear on hoses, wiring, exhaust connections and transmission mounts. Timely renewal helps preserve the handling balance and refinement expected from a Porsche and avoids secondary repairs caused by excessive engine movement.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Made to original-spec dimensions for consistent performance
- Compatible with factory systems and sensors where required by model