Gearbox mounts


- 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)
Upgrade your mounts to Heavy Duty, thicker and more resistant option.

Fits:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not Club Sport, not Cabrio)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
HDMOUNTKIT
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This kit is comprised of the following items:





- 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)
SET OF 4 bushes

Please note the price does not include mounts. You are buying only the bushes
Fits inside the Mounts of:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not CS, not Cabrio)
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Click 'Zoom in' for large parts diagram.
Fits to No. 8 on the diagram
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SPF1375K
The product you are viewing cross references to these numbers





- 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)

Set of 2 bushes which will fit 2 Engine mounts
Fits inside the Mounts of:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not CS, not Cabrio)
Please note the price does not include mounts
Fits to No.8 on the diagram
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-415
The product you are viewing cross references to these numbers





- 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)

SET OF 2 bushes which will fit 2 Engine mounts
Fits inside the Mounts of:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not CS, not Cabrio)
Fits to No. 8 on the diagram
Powerflex Black Series - Designed for the Track - Ready to Race - Engineered to be the best.
Powerflex Black Series bushes are manufactured using a 95 Shore A compound to provide maximum control of chassis geometry. This compound can be up to 80% more resistant to load than standard rubber and 25% stiffer than our purple performance material.
If your requirements are purely for the ultimate in handling and chassis performance then Powerflex Black Series are unique, offering the most precise and accurate alignment for your chassis.
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsitive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-415BLK
The product you are viewing cross references to these numbers





- 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 912E 4CYL 1976
Sold as a complete set for one gearbox mount
OEM Part Number: 90137503100

Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Made in our Dark Grey 80A durometer material to give the appearance of rubber but with the performance and longevity of polyurethane, reducing bush deflection by an impressive 50%. A small increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the transmission and chassis. The harder the material used, the greater the NVH transmitted.
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-414
The product you are viewing cross references to these numbers





- 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 912E 4CYL 1976
Sold as a complete set for one gearbox mount
OEM Part Number: 90137503100

Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Made in our Dark Grey 80A durometer material to give the appearance of rubber but with the performance and longevity of polyurethane, reducing bush deflection by an impressive 50%. A small increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the transmission and chassis. The harder the material used, the greater the NVH transmitted.
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-414BLK
The product you are viewing cross references to these numbers





- 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 912E 4CYL 1976
Sold as a complete set for one gearbox mount
OEM Part Number: 90137503100

Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Made in our Dark Grey 80A durometer material to give the appearance of rubber but with the performance and longevity of polyurethane, reducing bush deflection by an impressive 50%. A small increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the transmission and chassis. The harder the material used, the greater the NVH transmitted.
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-414H
The product you are viewing cross references to these numbers





- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits to gearbox mount 91137503109 / 91137503110.

Fits:
Porsche 911 1987-89 G50 Gearbox equipped cars
These replacement transmission mounts are the same durometer as your factory bushings. Tired of the drivetrain slop that your worn bushings are creating, but don't want to move up to a harder durometer? These are your answer.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91137503110
The product you are viewing cross references to these numbers



Enhance Your Porsche Transmission with Performance Gearbox Mounts: Technical Specifications and Benefits
Technical specifications of Performance Gearbox Mounts:
- Performance gearbox mounts are specialized mounts designed to improve the stability, control, and overall performance of a Porsche's transmission system.
- They are typically made from high-quality materials such as polyurethane or solid aluminum.
- Performance gearbox mounts feature a stiffer construction compared to standard mounts, reducing transmission movement and enhancing rigidity.
- They come in various designs and options to fit different Porsche models and transmission configurations.
- Performance gearbox mounts are available as aftermarket upgrades or standard replacements for Porsche vehicles.
Benefits of upgrading or replacing Performance Gearbox Mounts for your Porsche:
Enhanced shifting precision: Performance gearbox mounts minimize transmission movement, resulting in improved shifting precision and accuracy, especially during high-performance driving.
Reduced drivetrain slack: Upgrading to performance mounts helps minimize drivetrain slack, ensuring quicker power delivery and smoother gear changes, leading to enhanced driving dynamics.
Improved throttle response: By reducing transmission movement and improving rigidity, performance mounts provide quicker and more precise throttle response, enhancing overall vehicle responsiveness.
Enhanced stability and control: Performance gearbox mounts contribute to improved stability and control, especially during aggressive acceleration and high-speed cornering, reducing transmission-induced weight transfer.
Reduced noise, vibration, and harshness (NVH): Stiffer gearbox mounts help reduce transmission-related vibrations and noise, resulting in a smoother and more comfortable driving experience.
At Design911, we specialize in providing the correct parts and professional advice for your Porsche. We offer a wide range of performance gearbox mounts specifically designed for Porsche models, including both aftermarket upgrades and OEM replacements. Our experienced team can assist you in selecting the appropriate mounts based on your Porsche model, year, and specific performance requirements. We understand the importance of finding the right balance between performance and comfort, and we can guide you in choosing the optimal gearbox mounts that suit your needs. With our expertise and commitment to customer satisfaction, we can help you enhance your Porsche's transmission performance, responsiveness, and overall driving experience. Contact us today to benefit from our comprehensive support and access high-quality parts tailored to your requirements.