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Gearbox Mounts
By OE Match
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
This OE Match washer serves as a bearing surface beneath the head of the hexagon bolt that clamps the gearbox support bearing bracket to the chassis or subframe.
Sold individually
Fits:
Porsche 964 C4 1989 - 1994 MANUAL (Gearbox type G64.00 / G64.01 / G64.02)
Porsche 993 C4 / C4S 1995 - 1998 MANUAL (Gearbox type G64.20 / G64.21)
Porsche 993 TURBO 1995 - 1998 MANUAL (Gearbox type G64.51 / G64.52)
Diagram Ref No 12
The gearbox support washer provides a stable bearing surface for the hexagon-head bolt, ensuring even distribution of clamping force to the gearbox support bearing bracket. Proper load distribution helps maintain consistent torque retention and prevents localized stress that can lead to fatigue or component deformation.
• Load distribution: Spreads clamping force from the gearbox support bolt to prevent localized stress on the bracket surface.
• Vibration resistance: Helps maintain bolt preload under road vibration and drivetrain movement.
• Installed on: Gearbox support bearing bracket assembly
• Quantity required: Typically 1 washer per gearbox support bolt (verify per model and service manual)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90002500703
The product you are viewing cross references to these numbers
- Porsche 964 (911) C4 1989-93
Sold individually, 1 bushing per car.
Fits:
Porsche 964 C4 Only
HD transmission mounts for your 964 C4 can provide significant performance benefits to any owner. These mounts are constructed from 25% stiffer rubber than stock, offering an RS comparable part at a fraction of the price. Thanks to their rubber construction, these mounts can offer these benefits all without significantly increased NVH. This makes them an ideal upgrade for those with worn original parts who want significantly improved shifter feel and weight transfer properties. All of these benefits come without making your car feel like a racecar like semi-solid or solid mounts tend to do. If you are going to be going through the effort of changing the transmission bushing, you definitely don't want to miss the chance to make this sensible, inexpensive upgrade.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437505502
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
Fits:
Porsche 964 1989-94
Diagram ref no 25
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96411905500
The product you are viewing cross references to these numbers
- Porsche 964 (911) C4 1989-93
The transmission mount and bracket is a replacement unit designed for the manual transaxle in the Porsche 911 964 series. It replicates Porsche factory spec in both mount geometry and load-bearing capacity, ensuring the gearbox is securely located, vibrations are minimised and shifting performance remains sharp.
Fits:
Porsche 964 C4 for vehicles with G64.00/01/02
Diagram ref no 1
• Position: Rear of vehicle – transmission mount bracket connecting the transaxle to the rear sub-frame.
• Function: Supports manual gearbox, isolates vibration, maintains correct alignment and prevents transmission movement under load.
A worn, damaged or sagging transmission mount can lead to a number of issues: drivetrain vibration, gear-shift difficulty, mis-alignment of the transaxle, rattles, or even accelerated wear of surrounding components. Replacing the mount ensures the gearbox stays firmly located, vibration is minimised, and the vehicle delivers the smooth head-turning performance you expect.
When to replace:
• Visual damage, cracks or sagging in the mount or bracket
• Noticeable drivetrain vibration or gearbox movement during acceleration
• Gear-shift feel has become vague or lever travel inconsistent
• The mount is original and the vehicle is high-mileage or being refurbished.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437502301
The product you are viewing cross references to these numbers
-
compressor, mounting, driving mechanism 964 TURBO /M64.5 M30.69 1991-94 813-22
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refrigerant circuit front 964 1989-94 813-25
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refrigerant circuit rear 964 1989-94 813-30
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engine electrics 1 for 964 CARRERA 2/4 M64.01/02 and CARRERA RS M64.03 1989-94 901-00
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engine electrics 1 for 964 TURBO M30.69 and M64.50 1991-94 901-01
-
central electrical system, engine compartment 964 CARRERA2/4, TURBO-LOOK, CARRERA RS 1989-94 901-05
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battery, starter, generator 964 1989-94 902-05
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horn 964 1989-94 903-00
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crankcase right 964 1989-94 101-10
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camshaft housing 964 M64.01/02/03 and M64.50 1989-94 103-07
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valve control left 964 TURBO M30.69 1991-92 103-12
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valve control right 964 TURBO M30.69 1991-92 103-17
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air cooling 964 1989-94 105-00
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engine cover, engine capsule 964 M64.01/02/03 1989-94 105-10
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air cleaner 964 TURBO M30.69 and M64.50 1991-94 106-05
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bracket, throttle linkage 964 TURBO M30.69 and M64.50 1991-94 107-12
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k-jetronic 964 TURBO M30.69 and M64.50 1991-94 107-20
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k-jetronic 964 TURBO M30.69 and M64.50 1991-94 107-35
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turbocharging oil supply for turbocharger 964 TURBO M30.69 and M64.50 1991-94 107-40
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charge air cooler 964 TURBO M30.69 and M64.50 1991-94 107-45
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air injection 964 TURBO M30.69 and M64.50 1991-94 108-05
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exhaust system: muffler, catalytic converter 964 M64.01/02/03 1989-94 202-00
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replacement transmission ready for installation, transmission case 964 1989-94 302-00
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gear housing, transmission cover 964 1989-94 302-05
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distributor housing 964 G64.00/01/02 1989-94 302-10
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shift rods, shift forks 964 1989-94 304-00
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front-axle final drive 964 CARRERA 4 1989-94 305-20
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transmission suspension 964 1989-94 307-00
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tiptronic replacement transmission 964 CARRERA 2 A50.01/02/03 1990-94 320-00
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tiptronic spur gears intermediate plate 964 CARRERA 2 A50.01/02/03 1990-94 320-01
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tiptronic transmission suspension 964 CARRERA 2 A50.01/02/03 1990-94 370-00
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suspension shock absorber strut 964 1989-94 402-00
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brake fluid reservoir, brake master cylinder, brake booster 964 CARRERA 4, TURBO, TURBO-LOOK, CARRERA RS 1989-94 604-00
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brake fluid reservoir, brake master cylinder 964 CARRERA 2 1989-94 604-01
-
pedals tiptronic 964 1989-94 702-05
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