Please wait… 
Please wait while we process your order,
do not press the back button… 
Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk Facebook Instagram
Porsche specialists based in the UK
Porsche > 997 (911) MK1 2005-2008 > Gearbox / Transmission >

Gearbox Mounts

Gearbox Mounts

Refine by Car Type
Filter by brand
DISPLAYING 1 to 16 (of 20 products)
1 2
Engine mount Hardware kit, with Heavy duty bushing set. Porsche 996 / 997 - 99737503303, 9963750303, 99637533103, 99637503302, 99737503302, 99737503301, 99637503303
2
Engine mount Hardware kit, with Heavy duty bushing set. Porsche 996 / 997
997375MOUNTKIT.2
Product Information
Product Information
Engine mount Hardware kit, with Heavy duty bushing set.
This gearbox mount replacement kit includes an OE Match Heavy Duty version bushing for the gearbox mount together with Original Porsche mounting components, bolts, and nuts. It is designed for owners looking to renew the gearbox mounting assembly while upgrading to a firmer, more performance-focused mounting solution. Designed for applications using gearbox mount reference 99737503303.  

Fits:
Porsche 996 C2 / C4 2002 - 2005 TIPRTONIC
Porsche 996 TURBO 2001 - 2005
Porsche 996 GT3 2000 - 2005

Porsche 997 C2 / C4 2005 - 2008 TIPTRONIC
Porsche 997 TURBO 2007 - 2009

Porsche 997 TURBO 2010 - 2012 (G97.55)
Porsche 997 GT3 2007 -2011 (G97.90)

Diagram ref no 4, 5, 7 and the bushings marked in green

The gearbox mount supports the transmission and controls drivetrain movement under acceleration, braking, cornering, and gear changes. The Heavy Duty bushing provides increased resistance to movement compared with a standard road-use bushing, helping improve drivetrain stability and gearshift feel.

The supplied Original Porsche hardware allows the associated mounting components to be renewed at the same time.

Functions:
•  Replaces the gearbox mount bushing
•  Heavy Duty OE Match specification
•  Includes Original Porsche mounting hardware
•  Helps reduce excessive transmission movement
•  Supports improved drivetrain stability
•  Can provide a more direct and precise drivetrain feel
•  Helps improve gearshift consistency under load
•  Suitable for fast road, performance, or uprated applications
•  Complete bushing and hardware replacement solution

Why Choose the Heavy Duty Version?
A Heavy Duty gearbox mount bushing is designed to provide firmer support than a standard replacement bushing. By reducing excessive transmission movement, it can help improve drivetrain response and provide a more connected feel during acceleration, deceleration, and gear changes.

This makes it particularly suitable for cars used for enthusiastic road driving or where increased drivetrain control is preferred.

Why Replace This Kit?
Gearbox mount bushes deteriorate over time due to age, heat, oil contamination, vibration, and repeated drivetrain loading. Worn mounts can allow excessive transmission movement, contributing to vibration, knocking, drivetrain shunt, or inconsistent gearshift feel.

Mounting hardware may also corrode, seize, or become damaged during removal. Replacing the bushing and hardware together provides a more complete gearbox mount refresh.

When to Replace This Kit
•  Gearbox mount rubber is cracked, soft, or collapsed
•  Excessive transmission movement is present
•  Drivetrain shunt or knocking is noticeable
•  Gearshift feel becomes inconsistent under load
•  Original hardware is corroded or damaged
•  Gearbox or drivetrain service is being carried out
•  A firmer, performance-focused mount is required
•  Vehicle is undergoing drivetrain restoration or upgrade

Where it fits on the car
This kit fits at the gearbox / transmission mounting point for applications using gearbox mount reference 99737503303.

Applications / Fitments
•   Suitable for applications using gearbox mount reference 99737503303
•   Heavy Duty specification for increased drivetrain support
•   Always verify vehicle fitment against the listed part numbers before ordering

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

997375MOUNTKIT.2
99737503303
9963750303
99637533103
99637503302
99737503302
99737503301
99637503303

The product you are viewing cross references to these numbers
Engine mount Hardware kit, with Standard bushing set. Porsche 996 / 997 - 99737503303, 9963750303, 99637533103, 99637503302, 99737503302, 99737503301, 99637503303
2
Engine mount Hardware kit, with Standard bushing set. Porsche 996 / 997
997375MOUNTKIT.1
Product Information
Product Information
Engine mount Hardware kit, with Standard bushing set.
This gearbox mount replacement kit includes an OE Match standard-version bushing for the gearbox mount together with OE Porsche mounting components. It is intended for replacing the worn rubber mounting element while renewing the associated installation hardware at the same time. Designed for applications using gearbox mount reference 99737503303.  

Fits:
Porsche 996 C2 / C4 2002 - 2005 TIPRTONIC
Porsche 996 TURBO 2001 - 2005
Porsche 996 GT3 2000 - 2005

Porsche 997 C2 / C4 2005 - 2008 TIPTRONIC
Porsche 997 TURBO 2007 - 2009

Porsche 997 TURBO 2010 - 2012 (G97.55)
Porsche 997 GT3 2007 -2011 (G97.90)

Diagram ref no 4, 5, 7 and the bushings marked in green

The gearbox mount supports the transmission and helps isolate drivetrain vibration from the chassis. A correctly functioning mount controls gearbox movement during acceleration, braking, and gear changes while helping reduce vibration, harshness, and unwanted drivetrain noise.

The included OE Porsche hardware provides fresh fixing components for installation, while the OE Match standard bushing is designed to restore original-style road use characteristics.

Functions:
•  Replaces the gearbox mount bushing
•  Standard-specification
•  OE Match replacement
•  Includes OE Porsche mounting hardware
•  Helps support the transmission securely
•  Helps control gearbox and drivetrain movement
•  Reduces vibration, harshness, and unwanted noise
•  Supports smoother drivetrain operation
•  Suitable for gearbox mount repair or drivetrain restoration
•  Provides a convenient hardware and bushing replacement kit.

Why Replace This Kit?
Gearbox mount bushes can deteriorate due to age, heat, oil contamination, vibration, and drivetrain load. As the rubber softens, cracks, or collapses, the transmission may move excessively under load. Worn gearbox mounts can contribute to vibration, knocking, drivetrain shunt, poor gearshift feel, or excessive movement during acceleration and braking. Mounting bolts and nuts can also corrode, seize, or become damaged during removal. Replacing the bushing and hardware together provides a more complete repair.

When to Replace This Kit
•  Gearbox mount rubber is cracked, soft, or collapsed
•  Excessive transmission movement is present
•  Vibration is felt through the chassis or cabin
•  Knocking occurs during acceleration or gear changes
•  Gearshift feel has become harsh or unsettled
•  Original mounting hardware is corroded or damaged
•  Gearbox or drivetrain service is being carried out
•  Transmission mounting system is being restored.

Where it fits on the car
This kit fits at the gearbox / transmission mounting point for applications using gearbox mount reference 99737503303.

Applications / Fitments
•   Suitable for applications using gearbox mount reference 99737503303
•   Designed for standard road-use gearbox mounting replacement
•   Always verify vehicle fitment against the listed part numbers before ordering

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

997375MOUNTKIT.1
99737503303
9963750303
99637533103
99637503302
99737503302
99737503301
99637503303

The product you are viewing cross references to these numbers
Engine gearbox mount bracket. Porsche 997 - 99737511501, 99737511500
2
Engine gearbox mount bracket. Porsche 997
Special Order item
99737511501
Product Information
Product Information
Engine gearbox mount bracket.


Fits:
Porsche 997 C2 / C4 2005-08 TIPTRONIC
Porsche 997 TURBO 2007-09
Porsche 997 TURBO 2010-12 (G97.55)
Porsche 997 GT3 2007-11 (G97.90)

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99737511501
99737511501
99737511500

The product you are viewing cross references to these numbers
Engine gearbox mount. Porsche 996 / 997 - 99737503303, 9963750303, 99637533103, 99637503302, 99737503302, 99737503301, 99637503303
7
Engine gearbox mount. Porsche 996 / 997
Special Order item
99737503303
Product Information
Product Information
Engine gearbox mount.



Fits:
Porsche 996 C2 / C4 2002-05 TIPRTONIC
Porsche 996 TURBO 2001-05
Porsche 996 GT3 2000-05

Porsche 997 C2 / C4 2005-08 TIPTRONIC
Porsche 997 TURBO 2007-09

Porsche 997 TURBO 2010-12 (G97.55)
Porsche 997 GT3 2007-11 (G97.90)

This product supersedes Porsche's old part numbers:
- 99637503303
- 99737503301
- 99737503302

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99737503303
99737503303
9963750303
99637533103
99637503302
99737503302
99737503301
99637503303

The product you are viewing cross references to these numbers
Gearbox Front Mounting Bush Insert Kit. Porsche 996 / 997 Powerflex - 99737503303, 9963750303, 99637533103, 99637503302, 99737503302, 99737503301, 99637503303
3
Gearbox Front Mounting Bush Insert Kit. Porsche 996 / 997 Powerflex
PFR57-531
Product Information
Product Information
Powerflex Gearbox Front Mounting Bush Insert Kit.
Fits 996 & 997 vehicles with the twin mounting bracket (Replacement for Porsche parts number 99737503303) at the end of the gearbox.

Fits:
Porsche 996 / 997 all 3.6 & 3.8 Tiptronic models, Turbo models Manual & Tiptronic, GT2 & GT3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-531
99737503303
9963750303
99637533103
99637503302
99737503302
99737503301
99637503303

The product you are viewing cross references to these numbers
Gearbox Front Mounting Bush Insert Kit. Porsche 996 / 997 Powerflex Black Series - 99737503303, 9963750303, 99637533103, 99637503302, 99737503302, 99737503301, 99637503303
3
Gearbox Front Mounting Bush Insert Kit. Porsche 996 / 997 Powerflex Black Series
PFR57-531BLK
Product Information
Product Information
Powerflex Black Series Gearbox Front Mounting Bush Insert Kit.
Fits 996 & 997 vehicles with the twin mounting bracket (Replacement for Porsche parts number 99737503303) at the end of the gearbox.

Fits:
Porsche 996 / 997 all 3.6 & 3.8 Tiptronic models, Turbo models Manual & Tiptronic, GT2 & GT3

POWERFLEX Black Series bushes are manufactured using our Black 95 Shore A compound to provide maximum control of chassis geometry. 
They are designed for the Track, ready to Race and are engineered to be the best.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-531BLK
99737503303
9963750303
99637533103
99637503302
99737503302
99737503301
99637503303

The product you are viewing cross references to these numbers
Gearbox Front Mounting Bush Insert Kit. Porsche 997 Powerflex - PFR57-532, PFR57532, 99737525500
4
Gearbox Front Mounting Bush Insert Kit. Porsche 997 Powerflex
PFR57-532
Product Information
Product Information
Powerflex Gearbox Front Mounting Bush Insert Kit.
One complete bush per pack

OEM Part Number: 99737525500

Fits:
Porsche 997 Carrera 2 / Carrera 4 2005-08 manual with a single gearbox bush in the end casing
Except for Turbo GT2 & GT3 models which use PFR57-531.
Does not fit Generation 2 997 models.


Replacing your 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.
Diagram ref no 3



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-532
PFR57-532
PFR57532
99737525500

The product you are viewing cross references to these numbers
Gearbox Front Mounting Bush Insert Kit. Porsche 997 Powerflex Black Series - PFR57-532, PFR57532, 99737525500
2
Gearbox Front Mounting Bush Insert Kit. Porsche 997 Powerflex Black Series
PFR57-532BLK
Product Information
Product Information
Powerflex Black Series Gearbox Front Mounting Bush Insert Kit.
One complete bush per pack

OEM Part Number: 99737525500

Fits:
Porsche 997 Carrera 2 / Carrera 4 2005-08 manual with a single gearbox bush in the end casing
Except for Turbo GT2 & GT3 models which use PFR57-531.
Does not fit Generation 2 997 models.

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

POWERFLEX Black Series bushes are manufactured using our Black 95 Shore A compound to provide maximum control of chassis geometry. 
They are designed for the Track, ready to Race and are engineered to be the best.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-532BLK
PFR57-532
PFR57532
99737525500

The product you are viewing cross references to these numbers
Gearbox mount bush. Porsche 997.1 C2/C2S, C4/C4S 2005-08 - 98737502304, 98737502305, 98737502303 - URO-009883
4
Gearbox mount bush. Porsche 997.1 C2/C2S, C4/C4S 2005-08
98737502305/2::1
Product Information
Product Information
Gearbox mount bush.



Fits:
Porsche 997.1 C2/C2S, C4/C4S  2005-08

Part highlighted in green on diagram.
Click 'Zoom in' for diagram.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98737502305
98737502304
98737502305
98737502303

The product you are viewing cross references to these numbers
Gearbox Mount Rubber Stop. Porsche 997 C2 / C4 - 99737525500
5
Gearbox Mount Rubber Stop. Porsche 997 C2 / C4
Special Order item
99737525500
Product Information
Product Information
Gearbox Mount Rubber Stop.

 


Fits:
Porsche 997 C2 / C4 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

Price is for each.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99737525500
99737525500

The product you are viewing cross references to these numbers
Gearbox suspension hook. Porsche 996 / 997 - 99744910150
3
Gearbox suspension hook. Porsche 996 / 997
Special Order item
99744910150
Product Information
Product Information
Gearbox suspension hook.

Fits:
Porsche 996 C2 / C4 2002-05 Tirptonic
Porsche 996 Turbo / GT2 2001-05 Manual
Porsche 996 Turbo 2001-05 Tiptronic
Porsche 996 GT3 2001-05 Manual
Porsche 997.1 C2 / C4 2005-08 Tiptronic
porsche 997.1 Turbo / GT2 2007-09 Manual
Porsche 997.1 Turbo 2007-09 Tiptronic
Porsche 997.2 Turbo / GT2 RS 2010-13 Manual
Porsche 997 GT3 / GT2 RS Manual

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99744910150
99744910150

The product you are viewing cross references to these numbers
Gearbox Transmission Bushing Set, Heavy Duty. Porsche 996 / 997 - 99737503303, 99637503303, 99637533103, 99637503302, 99737503302, 99737503301 - PR13002P
3
Gearbox Transmission Bushing Set, Heavy Duty. Porsche 996 / 997
99737503303/B
Product Information
Product Information
Gearbox Transmission Bushing Set, Heavy Duty.

Improve shifting precision and driveline stability with this Gearbox / Transmission Bushing Set.
Designed for Porsche 996 and 997 models, these heavy-duty bushings replace the original soft rubber mounts with a higher-durometer compound and reinforced aluminum cores.
Sold As A Set Of 2.

Fits:

  • Porsche 996 C2 3.6L 2002-2005 (Tiptronic Transmission Only)
  • Porsche 996 C4 3.6L 2002-2005 (Tiptronic Transmission Only)
  • Porsche 996 C4S 3.6L 2002-2005 (Tiptronic Transmission Only)
  • Porsche 996 TURBO 2000-05 (Tiptronic / Manual Transmission)
  • Porsche 996 GT2 2001-05 (Tiptronic / Manual Transmission)
  • Porsche 996 GT3 MKI 1999-02 (Manual Transmission Only)
  • Porsche 996 GT3 MKII 2003>> (Manual Transmission Only)
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08 (Tiptronic Transmission Only)
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08 (Tiptronic Transmission Only)
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08 (Tiptronic Transmission Only)
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08 (Tiptronic Transmission Only)
  • Porsche 997 MK1 GT3 2007-09 (Manual Transmission Only)
  • Porsche 997 MKII GT3 2010-11 (Manual Transmission Only)
  • Porsche 997 MKII Turbo 2010-13 (Manual Transmission Only)
  • Porsche 997 MKII GT2 RS 2011-13 (Manual Transmission Only)

Fits On To Diagram Ref No 1

What This Product Does:
  • Support and Mount the Transmission - They hold the gearbox (transaxle) in place relative to the chassis, keeping it aligned and preventing undesired motion.
  • Absorb Vibration & Isolate Noise - The bushings dampen transmission vibration and drivetrain noise, improving comfort.
  • Control Drivetrain “Slop” / Play - Stiffer bushings reduce the amount of twist or movement under torque load, minimizing driveline lash or unwanted movement when accelerating, shifting, or off the throttle.
  • Maintain Geometry & Alignment - Properly mounted gearbox prevents shifting of driveline angles, which helps protect CV joints, driveshafts, and reduces undue stress elsewhere.

Symptoms Of Worn / Failing Transmission Bushings:
  • Clunking, knocking, or banging noises during shifts, on throttle application, or when decelerating
  • Driveline lash / slop — a sensation of delay or “slack” before power transfer
  • Increased vibration or harshness felt in the cabin, especially under load or gear changes
  • Gearbox movement — the transmission may move or twist noticeably when revs / torque change
  • Wear on adjacent components — e.g. CV joints, driveshafts, differential support bearings may see accelerated wear

Why Replacement Matters:
  • Restores Sharpness & Responsiveness — by eliminating soft or worn mounts, the drivetrain becomes more responsive and direct.
  • Reduces Noise, Vibration & Harshness — a proper bushing absorbs and isolates vibration better than degraded old rubber.
  • Protects Other Drivetrain Parts — reduces stress on CV joints, couplings, differential mounts due to movement or misalignment.
  • Preserves Safety & Durability — under high torque loads (e.g. hard driving), a weak mount can twist excessively and cause damage.
  • Better Handling Feedback — with less transmission movement, throttle transitions and engine braking feel more controlled and precise.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99737503303
99737503303
99637503303
99637533103
99637503302
99737503302
99737503301

The product you are viewing cross references to these numbers
Gearbox transmission bushing. Heavy duty Porsche 996 / 997 - 99737503303, 99637503303, 99637533103, 99637503302, 99737503302, 99737503301 - PR13002P, S13002P, S-13002P
4
Gearbox transmission bushing. Heavy duty Porsche 996 / 997
99737503303/A
Product Information
Product Information
Heavy duty transmission bushing for Tiptronic gearboxes.
Sold as a set with (2) bushings included per kit to complete a single car.
Type: Racing / Motorsport

Fits:
Porsche 996 C2 / C4 / C4S 2002-2005 TIPTRONIC only
Porsche 996 Turbo 2001-2005 MANUAL & TIPTRONIC
Porsche 996 GT3 MKI & MKII 2000-2005 MANUAL only

Porsche 997 C2 / C4 / C2S / C4S TIPTRONIC only
Porsche 997 Turbo MKI 2006-2009 MANUAL & TIPTRONIC
Porsche 997 Turbo MKII 2010-2013 MANUAL only
Porsche 997 GT3 MKI & MKII 2007-2013 MANUAL only


HD transmission mounts replace your OEM transmission carrier bushings with our 25% stiffer bushings**. These units install the same as factory bushings and will eliminate clunks and driveline slop often associated with original rubber units. These high quality units feature aluminum center bushings and splined outer races filled with harder durometer rubber for perfect fitment and long service life. A perfect answer for those who want less driveline play but don't want harshness associated with semi solid and solid mounts.

Fits inside Porsche OE part 99737503303, or 99637503303

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99737503303
99737503303
99637503303
99637533103
99637503302
99737503302
99737503301

The product you are viewing cross references to these numbers
Gearbox transmission mount bushing kit, Standard. Porsche 996 / 997 - 99737503303, 9963750303, 99637533103, 99637503302, 99737503302, 99737503301, 99637503303 - URO-013223
3
Gearbox transmission mount bushing kit, Standard. Porsche 996 / 997
99737503303KIT
Product Information
Product Information
Standard transmission bushings for Tiptronic gearboxes.
Sold as a set with (2) bushings included per kit to complete a single car.
Type: Road use



Fits:
Porsche 996 C2 / C4 2002-05 TIPRTONIC
Porsche 996 TURBO 2001-05
Porsche 996 GT3 2000-05

Porsche 997 C2 / C4 2005-08 TIPTRONIC
Porsche 997 TURBO 2007-09

Porsche 997 TURBO 2010-12 (G97.55)
Porsche 997 GT3 2007-11 (G97.90)

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99737503303KIT
99737503303
9963750303
99637533103
99637503302
99737503302
99737503301
99637503303

The product you are viewing cross references to these numbers
Hex head bolt gearbox mount and bell housing M12 x 1.5 x 100. Porsche 986 / 987 / 996 / 997 - 99907200801
3
Hex head bolt gearbox mount and bell housing M12 x 1.5 x 100. Porsche 986 / 987 / 996 / 997
Special Order item
99907201001
Product Information
Product Information
Hex head bolt gearbox mount and  bell housing. 
M12 x 1.5 x 100




Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987.1 Boxster / Cayman - 2005 to 2008
Porsche 996 - 1997 to 2005
Porsche 997.1 - 2005 to 2008



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99907201001
99907200801

The product you are viewing cross references to these numbers
Hex head bolt gearbox mount and bell housing M12 x 1.5 x 70. Porsche 986 / 987 / 996 / 997 - 99907200801
4
Hex head bolt gearbox mount and bell housing M12 x 1.5 x 70. Porsche 986 / 987 / 996 / 997
Special Order item
99907200801
Product Information
Product Information
Hex head bolt gearbox bell housing. 
M12 x 1.5 x 70




Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987 Boxster / Cayman - 2005 to 2008
Porsche 996 - 1997 to 2005
Porsche 997.1 - 2005 to 2008

Click 'Zoom in' for large parts diagram.
Diagram ref no 22



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99907200801
99907200801

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 20 products)
1 2
Also found on these pages
About Gearbox Mounts

Porsche Gearbox Mounts | Stability, Precision & Reduced Drivetrain Vibration

Gearbox mounts (also known as transmission mounts) are essential components that secure your Porsche’s gearbox to the chassis while isolating vibration and absorbing torque movement. These mounts play a crucial role in maintaining drivetrain alignment, smooth shifting, and overall driving comfort.

At Design911, we supply high-quality gearbox mounts and transmission mounting kits engineered to meet or exceed original performance specifications. Constructed from advanced rubber, polyurethane, or hydraulic materials, each mount provides the perfect balance of flexibility and strength — ensuring your Porsche maintains stable, refined performance under both road and track conditions.

Whether you’re restoring a classic Porsche or maintaining a modern performance model, our gearbox mounts deliver long-lasting stability, improved handling, and reduced drivetrain noise and harshness.

What Do Gearbox Mounts Do?

Gearbox mounts act as the vital connection between your Porsche’s transmission system and chassis, absorbing torque and vibration while maintaining alignment under load.

Core Functions:

  • Secure the gearbox in place under acceleration, braking, and cornering.
  • Absorb vibration and noise from the drivetrain.
  • Maintain correct driveshaft and linkage alignment.
  • Prevent excess movement that can stress surrounding components.

Without properly functioning gearbox mounts, excessive drivetrain movement can lead to harsh shifting, vibration, and even damage to exhaust, linkage, or driveshaft components.

Why Do Gearbox Mounts Fail or Wear Out?

Over time, gearbox mounts degrade due to exposure to engine heat, torque stress, and environmental factors such as oil contamination or moisture.

Common Causes of Failure Include:

  • Rubber deterioration or cracking from heat and age.
  • Hydraulic fluid leakage in fluid-filled mounts.
  • Metal fatigue in high-performance or heavy-load use.
  • Oil contamination softening rubber compounds.
  • Continuous torque stress from aggressive acceleration.

As mounts weaken, you may experience clunking noises, drivetrain vibration, gear lever movement, or difficulty shifting — all signs that your gearbox mounts need replacement.

Why Replace or Upgrade Your Gearbox Mounts?

Replacing worn gearbox mounts restores drivetrain stability, smoother shifting, and reduced vibration. Upgrading to reinforced or performance mounts enhances control and torque response, especially on tuned or track-driven Porsches.

Key Benefits:

  • Restores smooth, vibration-free gear changes.
  • Prevents drivetrain movement and component stress.
  • Improves handling precision and throttle response.
  • Reduces noise, vibration, and harshness (NVH).
  • Available in rubber, polyurethane, and performance-spec designs.
  • Ideal for maintenance, upgrades, or complete gearbox servicing.

Replacing mounts in pairs ensures balanced performance and consistent driveline alignment.

Highlights

  • Premium Porsche gearbox and transmission mounts.
  • Engineered for strength, durability, and vibration reduction.
  • Direct-fit replacements for Porsche 911, Cayman, Boxster, and others.
  • Reinforced designs for performance or track applications.
  • Reduces stress on transmission and drivetrain components.
  • Essential for smooth shifting, refinement, and drivetrain longevity.       

You may also like
Popular Models