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Category Filter
Engine mount. Porsche 986 Boxster 1997-04 / 987 Boxster 2005 > / 987C Cayman 2006 > - 98737502305
98737502305/1
Vehicle Group
- 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
Information
Engine mount Part number 987.375.023.05 (often written 98737502305) is
the centre engine mount / mount insulator used on mid-engine Porsche
Boxster/Cayman models, commonly fitted to late 986 and 987 Boxster / early 987
Cayman applications. The item is offered both as the complete mount and bracket
assembly and as a replacement bushing/insulator that must be pressed into the aluminium
bracket.
Fits:
This product supersedes Porsche's old part numbers:
- 98737502304
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98737502305
The product you are viewing cross references to these numbers
Position: center engine mount (the central mount that locates the engine fore/aft and resists torque).
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
- 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
Replace the part when it has lost its ability to control engine movement and damp vibration. Typical triggers to replace the centre mount include:
- Hard clunk or bang on acceleration, deceleration or gear changes (engine shifting against chassis).
- Excessive vibration into the cabin, especially at idle or specific RPM bands.
- Visible damage — torn, separated rubber, oil-soaked or collapsed mount/bushing, or corrosion of mating faces.
Common issues & failure causes
- Rubber deterioration: age, heat cycling and mechanical fatigue cause the rubber to harden, crack or de-bond from the metal, reducing isolation and allowing increased engine movement.
- Fluid contamination: oil or coolant leaks accelerate rubber breakdown (softening or swelling), commonly seen on older engines where leaks occur.
- Mechanical shock / abuse: repeated hard launches, aggressive shifting or collisions can cause sudden mount failure or promote early fatigue.
- Bracket wear / corrosion: the bushing may be fine, but the aluminium bracket can crack, corrode, or the bushing may need pressing into a worn bracket — which is why some techs prefer replacing the full assembly.
This product supersedes Porsche's old part numbers:
- 98737502304
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98737502305
98737502304
98737502305
98637502307
9863750230
98737502303
The product you are viewing cross references to these numbers
Price: £99.50
In stock
Related products
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- 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
Information
Engine Mount.
The OE Match Engine Mount is a high-quality replacement mounting component designed to securely support the engine while isolating vibration and movement from the vehicle chassis. Engine mounts play a critical role in maintaining correct engine positioning, reducing noise and vibration, and ensuring smooth power delivery throughout the drivetrain.
Sold Each.
x2 Required Per Car.
Fits:
Diagram Ref No 1
Manufactured to OE specifications for fit, function and durability, this replacement engine mount combines robust metal construction with a resilient rubber damping element to provide the ideal balance of support and vibration isolation. It is an essential component for maintaining driving comfort, drivetrain alignment and overall vehicle reliability.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95137504204
The product you are viewing cross references to these numbers
The OE Match Engine Mount is a high-quality replacement mounting component designed to securely support the engine while isolating vibration and movement from the vehicle chassis. Engine mounts play a critical role in maintaining correct engine positioning, reducing noise and vibration, and ensuring smooth power delivery throughout the drivetrain.
Sold Each.
x2 Required Per Car.
Fits:
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- 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 1
Manufactured to OE specifications for fit, function and durability, this replacement engine mount combines robust metal construction with a resilient rubber damping element to provide the ideal balance of support and vibration isolation. It is an essential component for maintaining driving comfort, drivetrain alignment and overall vehicle reliability.
What This Product Does:
- Supports and secures the engine within the chassis.
- Absorbs and dampens engine vibration.
- Reduces the transmission of noise into the passenger compartment.
- Maintains correct engine alignment and positioning.
- Controls engine movement during acceleration, braking and cornering.
- Helps protect drivetrain and exhaust components from excessive stress.
Symptoms Of Wear Or Failure:
- Increased engine vibration felt through the cabin.
- Clunking, knocking or thumping noises during acceleration or gear changes.
- Excessive engine movement when accelerating or decelerating.
- Harsh drivetrain engagement.
- Visible cracking, splitting or deterioration of the rubber mount.
- Sagging or misaligned engine position.
- Increased noise levels from the engine bay.
- Premature wear of adjacent drivetrain or exhaust components.
Why Replacement Matters:
- Engine mounts are subjected to continuous engine vibration, drivetrain torque, road shock, heat and environmental exposure. Over time, the rubber damping material can harden, crack, compress or separate from the mount housing, reducing its ability to properly support and isolate the engine.
- A failed engine mount can allow excessive engine movement, leading to increased vibration, poor driving refinement and additional strain on transmission mounts, exhaust systems, hoses and drivetrain components. If left unchecked, this can contribute to accelerated wear and costly repairs elsewhere in the vehicle.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95137504204
95137504204
94437504202
94437504204
The product you are viewing cross references to these numbers
Price: £55.00
In stock
Vehicle Group
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
Information
Engine mount
Replaces OEM part number:
477199301 (left) and 477199303 (right)
Fits:
Porsche 924
Replaces both the conventional rubber (LHS) and steel spring (RHS) mounts on the 924 with a durable rubber inserted mount in a strong steel cage giving a direct replacement for the originals. The mount design controls engine movement by less deflection than the original thereby giving the car a 'tighter' feel and reducing stress on exhaust and other ancilliaries under 'performance' driving conditions.
Pleas note: usage of these mounts give an tighter/sportier feel which will have an slight effect on driver comfort on an urban driving cycle.
PRICE IS FOR SINGLE MOUNT
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR174M
The product you are viewing cross references to these numbers
Replaces OEM part number:
477199301 (left) and 477199303 (right)
Fits:
Porsche 924
Replaces both the conventional rubber (LHS) and steel spring (RHS) mounts on the 924 with a durable rubber inserted mount in a strong steel cage giving a direct replacement for the originals. The mount design controls engine movement by less deflection than the original thereby giving the car a 'tighter' feel and reducing stress on exhaust and other ancilliaries under 'performance' driving conditions.
Pleas note: usage of these mounts give an tighter/sportier feel which will have an slight effect on driver comfort on an urban driving cycle.
PRICE IS FOR SINGLE MOUNT
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR174M
477199301
477199303
The product you are viewing cross references to these numbers
Price: £85.00
In stock
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- 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
Information
Engine Mounts.
With new engine mounts and transmission mounts, shifting more smoother and exact. You will need 2 for the engine.
Fits:
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95 (manual gearbox)
Click picture for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95137504204
The product you are viewing cross references to these numbers
With new engine mounts and transmission mounts, shifting more smoother and exact. You will need 2 for the engine.
Fits:
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95 (manual gearbox)
Click picture for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95137504204
95137504204
4143750001
94437504202
94437504204
The product you are viewing cross references to these numbers
Price: £79.00
In stock