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Engine Mounts
By OE Match
- 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 genuine Porsche bolts and 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 × Genuine Porsche 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 993 (911) C4 1994-97
- Porsche 993 (911) C4S 1994-97
The OE Match Engine Mount Kit is a complete replacement solution for Porsche 993 Carrera 4 / 4S Cabriolet models. It includes two OE Match engine mounts along with genuine Porsche bolts, washers, and locknuts required for secure installation.
SET OF 2, with bolts, washers and nuts
Fits:
Porsche 993 (911) C4 / C4S 1994 - 1997 Cabrio
Diagram ref no 7, 8, 9 and 10
This comprehensive kit is designed to replace both engine mounts and associated hardware in one complete package.
Kit includes:
• 2 × OE Match engine mounts (99337504909)
• 4 × Genuine Porsche bolts (90007413402)
• 4 × Genuine Porsche washers (96437511001)
• 2 × Genuine Porsche locknuts (99908421501)
The mounts are manufactured to OE specifications, ensuring precise fitment and proper vibration damping. These hydraulic-style mounts are engineered to support the engine while absorbing movement and reducing drivetrain vibration.
Including genuine Porsche fixings ensures correct torque, alignment, and long-term reliability - eliminating the risks associated with reusing old or stretched hardware.
This kit stabilises the engine within the chassis while isolating vibration and controlling engine movement. It restores smooth operation, improves driving comfort, and ensures proper drivetrain alignment.
Replacing both mounts and hardware together provides a complete refresh of the engine mounting system, eliminating common causes of vibration and noise. Engine mounts are specifically designed to reduce drivetrain vibration and maintain stability
Function
• Supports and secures the engine in position
• Absorbs vibration and reduces cabin noise
• Maintains proper drivetrain alignment
• Ensures secure installation with OE-spec hardware
This kit is essential for maintaining both performance and refinement in classic Porsche models.
Over time, engine mounts degrade due to heat, load, and fluid wear, leading to increased vibration and engine movement. Worn mounts can negatively affect handling, comfort, and even stress surrounding components. Replacing both mounts together with new genuine hardware ensures proper installation, restores factory-level smoothness, and protects the drivetrain from further wear.
When to replace
• Increased vibration in cabin or steering
• Clunking during acceleration or gear changes
• Visible wear or fluid leakage from mounts
• Engine sitting lower or misaligned
• 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 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) RS 1994-97
Fits above and below the engine/transmission mounts.

Fits:
Porsche 911 1965-89
Porsche 911 (930) Turbo 1975-89
Porsche 964 CARRERA RS
Porsche 993 CARRERA RS
Click 'Zoom in' for large parts diagram.
Diagram Ref No 10
Price shown is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90130531100PRM
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
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) C4 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
Fits:
Porsche 964 C4 1989-93 Targa & Cabrio
Porsche 993 C2 Cabrio
Click picture for large parts diagram.
Diagram Ref No 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9653750
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
Replaces factory hydraulic mounts. 1 kit with 2 mounts, hardware not included. This set has a rubber Shore rating of 75 and can be used as an upgrade for standard 964/993 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.
96437504381KIT
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