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Gearbox Mounts
By OE Match
- 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 6
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Related, superseded, cross reference or alternative numbers for comparison.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 993 (911) C2 1994-97
- Porsche 993 (911) RS 1994-97
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Related, superseded, cross reference or alternative numbers for comparison.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
OEMatch Gearbox Mounts — Engagement, Smoothness, Control
OEMatch gearbox mounts for Porsche models reduce drivetrain vibration and help maintain transmission alignment under load. OEMatch gearbox mounts are compatible replacements engineered to original-spec dimensions and tolerances — a practical option when genuine or OEM parts are unavailable. Use these mounts to restore refined gearshift feel and to protect adjacent drivetrain components.
Available Types
- Rubber-mounted gearbox mount for road use
Understanding OEMatch Gearbox Mounts
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original gearbox mounts.
OE (Original Equipment) refers to parts matching original specifications for the gearbox mounts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM gearbox mounts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Gearbox mounts secure the transmission to the chassis while isolating vibration and absorbing torque movement. They control drivetrain movement under acceleration, braking and cornering and help maintain driveshaft and linkage alignment. When mounts deteriorate, you may notice clunking, increased vibration or harsher shifting; prolonged movement can place additional load on exhaust, shafts and linkage components.
Benefits Include
- Restores smooth, vibration-reduced gear changes
- Maintains correct driveshaft and linkage alignment
- Reduces stress on transmission and adjacent components
Why Gearbox Mounts Wear and Fail
- Rubber deterioration and cracking from heat and age
- Oil contamination that softens mount compounds
- Fatigue or fluid loss in hydraulic-mounted designs
The Importance of Replacing with OEMatch Gearbox Mounts
Replacing worn gearbox mounts restores drivetrain stability and smoother shifting, reducing noise, vibration and harshness that affects comfort and control. Timely replacement helps prevent secondary damage to exhaust, linkage and driveshaft fittings and supports predictable throttle response and handling on Porsche models.
Advantages
- Replacement rubber and reinforced designs for varied use
- Options suitable for classic and modern Porsche models
- Direct-fit alternatives made to original-spec dimensions and tolerances