Please wait… 
Please wait while we process your order,
do not press the back button…
do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Gearbox hydraulic transmission mount. Porsche 986 / 987 - 98637504902
98637504902/1
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
Hydraulic transmission mount. Fits to left or right side.
Fits:
Porsche 986 Boxster / Boxster S 1997-04 Manual gearboxes
Porsche 987 Boxster 2005-2008 Tiptronic and 5-speed manual gearbox
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98637504902
The product you are viewing cross references to these numbers
Fits:
Porsche 986 Boxster / Boxster S 1997-04 Manual gearboxes
Porsche 987 Boxster 2005-2008 Tiptronic and 5-speed manual gearbox
Porsche 987C Cayman 2006-2008 Tiptronic and 5-speed manual gearbox
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98637504902
98637504902
The product you are viewing cross references to these numbers
Price: £99.00
In stock
Related products
Vehicle Group
- Porsche 964 (911) C2 1989-93
- 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) TURBO 1994-96
Information
Gearbox Silencer Block.
The OE Match Gearbox Silencer Block is a high-quality replacement mounting component designed to isolate and dampen vibration and noise generated by the gearbox and drivetrain. Installed between the transmission assembly and vehicle mounting points, the silencer block helps absorb drivetrain movement and reduce the transmission of vibration into the chassis and passenger compartment.
Fits:
Diagram Ref No 23
Manufactured to OE specifications using durable rubber and metal construction, this replacement silencer block restores the original levels of comfort, refinement and drivetrain support. It is an ideal replacement for worn, cracked or deteriorated original mounts commonly found on ageing Porsche vehicles.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437505581
The product you are viewing cross references to these numbers
The OE Match Gearbox Silencer Block is a high-quality replacement mounting component designed to isolate and dampen vibration and noise generated by the gearbox and drivetrain. Installed between the transmission assembly and vehicle mounting points, the silencer block helps absorb drivetrain movement and reduce the transmission of vibration into the chassis and passenger compartment.
Fits:
- Porsche 964 (911) C2 1989-93 MANUAL (Gearbox type G50.03 / G50.04 / G50.05) TIPTRONIC (Gearbox type A50.02 / A50.03)
- Porsche 964 (911) TURBO 3.3L 1991-93 MANUAL (Gearbox type G50.52)
- Porsche 964 (911) TURBO 3.6L 1991-93 MANUAL (Gearbox type G50.52)
- Porsche 993 (911) C2 1994-97 MANUAL (Gearbox type G50.20 / G51.21) IPTRONIC (Gearbox type A50.04 / A50.05)
- Porsche 993 (911) TURBO 1994-96 (Gearbox type G50.20 / G51.21) IPTRONIC (Gearbox type A50.04 / A50.05)
Diagram Ref No 23
Manufactured to OE specifications using durable rubber and metal construction, this replacement silencer block restores the original levels of comfort, refinement and drivetrain support. It is an ideal replacement for worn, cracked or deteriorated original mounts commonly found on ageing Porsche vehicles.
What This Product Does:
- Isolates gearbox and drivetrain vibrations from the chassis.
- Reduces transmission noise entering the passenger compartment.
- Supports the gearbox while allowing controlled movement.
- Helps maintain correct drivetrain alignment.
- Minimises shock loads during acceleration and gear changes.
- Improves driving comfort and refinement.
Symptoms Of Wear Or Failure:
- Increased vibration felt through the cabin.
- Excessive drivetrain movement during acceleration or deceleration.
- Clunking or knocking noises when changing gear.
- Harsh engagement during gear shifts.
- Visible cracking, splitting or deterioration of the rubber mount.
- Sagging or misalignment of the gearbox assembly.
- Increased transmission noise within the vehicle.
- Premature wear of surrounding drivetrain components.
Why Replacement Matters:
- The gearbox silencer block is continuously exposed to drivetrain torque, engine vibration, road shock, heat and age-related deterioration. Over time, the rubber element can harden, crack or separate from its metal mounting surfaces, reducing its ability to absorb vibration and support the transmission correctly.
- A failed silencer block can allow excessive gearbox movement, leading to increased vibration, drivetrain noise and additional stress on transmission mounts, couplings and related components. If left unresolved, excessive movement may contribute to accelerated wear throughout the drivetrain system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437505581
96437505502
911821
96437505581
The product you are viewing cross references to these numbers
Price: £89.00
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 993 (911) C2 1994-97
Information
HD Transmission / gearbox mount bush
Sold individually, one per car.
Fits:
Porsche 964 / 993 C2 Only
High Density transmission mounts are the perfect compromise between stock rubber and our Semi-Solid mounts. Their heavy duty 25% higher durometer rubber construction makes them ideal for performance oriented cars but still allows absorption of vibrations and noise associated with solid mounts. Installs in stock transmission mount bracket replacing worn out factory rubber.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437505581
The product you are viewing cross references to these numbers
Sold individually, one per car.
Fits:
Porsche 964 / 993 C2 Only
High Density transmission mounts are the perfect compromise between stock rubber and our Semi-Solid mounts. Their heavy duty 25% higher durometer rubber construction makes them ideal for performance oriented cars but still allows absorption of vibrations and noise associated with solid mounts. Installs in stock transmission mount bracket replacing worn out factory rubber.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437505581
96437505502
The product you are viewing cross references to these numbers
Price: £113.68
In stock
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) RS 1994-97
Information
Gearbox silencer block Hexagon-head bolt. M12 x 1.5 x 100.
Engineered to match the original Porsche specification, this high-quality bolt ensures correct fit, strength, and finish for secure attachment of the gearbox silencer block on the Porsche 993 Carrera 2 .
Sold each.
Fits:
Porsche 993 C2 1994-98 MANUAL (Gearbox type G50.20 / G51.21)
Porsche 993 Carrera RS 1995 MANUAL (Gearbox type G50.31 / G50.32 / G50.33)
Porsche 993 C2 1994-98 TIPTRONIC (Gearbox type A50.04 / A50.05)
Diagram Ref No 15.
Bolts used in drivetrain and gearbox assemblies are exposed to continuous vibration, torque stress, and environmental factors such as heat and corrosion. Over time, these conditions can weaken or stretch the bolt, reducing its ability to maintain proper clamping force. Using a degraded or mismatched bolt can cause mounting misalignment, vibration, or even component failure under load.
When to replace:
• During gearbox or silencer block removal, when original bolts show corrosion, wear, or damaged threads.
• As part of drivetrain servicing or restoration, ensuring all fasteners meet factory torque and material specifications.
• Whenever hardware is reused or mismatched, to maintain the correct preload and structural integrity of the assembly.
Replacing this hexagon-head bolt guarantees the proper tensile strength, precise thread pitch, and corrosion resistance — restoring safe, vibration-free mounting performance in your Porsche 993 Carrera 2 or related 911 model.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037808801
The product you are viewing cross references to these numbers
Engineered to match the original Porsche specification, this high-quality bolt ensures correct fit, strength, and finish for secure attachment of the gearbox silencer block on the Porsche 993 Carrera 2 .
Sold each.
Fits:
Porsche 993 C2 1994-98 MANUAL (Gearbox type G50.20 / G51.21)
Porsche 993 Carrera RS 1995 MANUAL (Gearbox type G50.31 / G50.32 / G50.33)
Porsche 993 C2 1994-98 TIPTRONIC (Gearbox type A50.04 / A50.05)
Diagram Ref No 15.
Bolts used in drivetrain and gearbox assemblies are exposed to continuous vibration, torque stress, and environmental factors such as heat and corrosion. Over time, these conditions can weaken or stretch the bolt, reducing its ability to maintain proper clamping force. Using a degraded or mismatched bolt can cause mounting misalignment, vibration, or even component failure under load.
When to replace:
• During gearbox or silencer block removal, when original bolts show corrosion, wear, or damaged threads.
• As part of drivetrain servicing or restoration, ensuring all fasteners meet factory torque and material specifications.
• Whenever hardware is reused or mismatched, to maintain the correct preload and structural integrity of the assembly.
Replacing this hexagon-head bolt guarantees the proper tensile strength, precise thread pitch, and corrosion resistance — restoring safe, vibration-free mounting performance in your Porsche 993 Carrera 2 or related 911 model.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037808801
90037802309
90037808801
The product you are viewing cross references to these numbers
Price: £4.50
In stock
Vehicle Group
- Porsche 993 (911) C2 1994-97
Information
Gearbox bracket support Hexagon-head bolt washer, A 8.4
OE Match replacement Hexagon-Head bolt washer designed for use with the gearbox/bracket support on Porsche 993 Carrera 2 (C2) models equipped with the Tiptronic automatic transmission. It provides proper load distribution under fastener heads in the transmission support area, ensuring secure mounting and stable drivetrain alignment.
Sold individually
Fits:
Porsche 993 C2 1994 - 1998 TIPTRONIC (Gearbox type A50.04 / A50.05)
Diagram ref no 16
This washer is ideal for service during gearbox mount repairs, bracket replacement, or when refreshing transmission support hardware on 993 C2 Tiptronic vehicles. It installs directly under the head of the corresponding hexagon-head bolt, improving clamping integrity and helping preserve correct transmission position.
The gearbox bracket support washer provides a stable bearing surface for the hexagon-head bolt, distributing clamping force evenly and protecting mounting surfaces from deformation. This helps maintain proper torque and supports reliable mounting of the gearbox support bracket.
Function
• Distributes clamp load under gearbox bracket hex bolt
• Protects bracket and chassis surfaces from fastener stress
• Helps maintain correct transmission support alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90002500703
The product you are viewing cross references to these numbers
OE Match replacement Hexagon-Head bolt washer designed for use with the gearbox/bracket support on Porsche 993 Carrera 2 (C2) models equipped with the Tiptronic automatic transmission. It provides proper load distribution under fastener heads in the transmission support area, ensuring secure mounting and stable drivetrain alignment.
Sold individually
Fits:
Porsche 993 C2 1994 - 1998 TIPTRONIC (Gearbox type A50.04 / A50.05)
Diagram ref no 16
This washer is ideal for service during gearbox mount repairs, bracket replacement, or when refreshing transmission support hardware on 993 C2 Tiptronic vehicles. It installs directly under the head of the corresponding hexagon-head bolt, improving clamping integrity and helping preserve correct transmission position.
The gearbox bracket support washer provides a stable bearing surface for the hexagon-head bolt, distributing clamping force evenly and protecting mounting surfaces from deformation. This helps maintain proper torque and supports reliable mounting of the gearbox support bracket.
Function
• Distributes clamp load under gearbox bracket hex bolt
• Protects bracket and chassis surfaces from fastener stress
• Helps maintain correct transmission support alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90002500703
90002500703
90002500702
The product you are viewing cross references to these numbers
Price: £0.65
Orderable