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Porsche // 997 (911) MK1 2005-2008 // 997 MK1 Carrera 2S 3.8L 2005-08
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Gearbox Mount Bushings Set (G50). Porsche 911 87-89 G50 - 91137503110
91137503110/5
Vehicle Group
- Porsche 911 1987-1989 3.2L G50
Information
Gearbox Mount Bushings Set (G50).
Gearbox Mount Bushings Set for Porsche 911 G50 (1987–1989). This rubber mount set restores gearbox stability, reduces vibration, and maintains proper drivetrain alignment under load.
Sold As A Set Of 2 bushes (4 halves).
Fits:
Fits On To Diagram Ref No 1
What This Product Does:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91137503110
The product you are viewing cross references to these numbers
Gearbox Mount Bushings Set for Porsche 911 G50 (1987–1989). This rubber mount set restores gearbox stability, reduces vibration, and maintains proper drivetrain alignment under load.
Sold As A Set Of 2 bushes (4 halves).
Fits:
- Porsche 911 1987-1989 3.2L G50
Fits On To Diagram Ref No 1
What This Product Does:
- Support & locate the gearbox - The mounts hold the transmission housing securely to the chassis or subframe, maintaining alignment between the gearbox and the driveshafts.
- Dampen vibration & isolate noise - The rubber or elastomer in the bushings absorbs vibration from the transmission and drivetrain, preventing harshness from transferring into the cabin.
- Limit movement under torque - Under acceleration, deceleration, or shifting loads, the gearbox wants to twist or shift slightly. The mount bushings resist that motion, constraining it to acceptable levels.
- Maintain geometry & protect components - A stable mount ensures the angular relationships and alignment of the drivetrain (driveshafts, couplings, mounts) remain correct under load.
- Clunking, thuds or knocks from the gearbox area when shifting or under throttle
- Increased drivetrain vibration felt in the cabin
- Loose or laggy gear shifts, or slight misalignment registering as “play”
- Excess movement / twist of the gearbox under load
- Stress or wear on driveshafts, universal joints, or coupling components
- Noise under load changes — e.g. when engaging or releasing throttle
- Restores drivetrain stability and response — tighter mounts reduce slack that dulls shift feel and throttle response
- Protects other drivetrain parts — controlling movement reduces undue stress on joints, couplings, and shafts
- Maintains alignment & lug angles — consistent mounts help preserve correct geometry even under load
- Eliminates noise & vibration due to degraded bushings
- Ensures proper operation — a failing mount can cause accelerated wear or even damage
- Maintains value & reliability — restoring mount integrity is important for longevity, performance restoration, and driver satisfaction
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91137503110
91137503110
91137503109
The product you are viewing cross references to these numbers
Price: £99.15
In stock
Related products
Vehicle Group
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
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
The product you are viewing cross references to these numbers
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
Price: £64.97
In stock
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Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
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
The product you are viewing cross references to these numbers
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
Price: £33.16
In stock
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-531BLK
The product you are viewing cross references to these numbers
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
Price: £36.49
In stock
Vehicle Group
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-532
The product you are viewing cross references to these numbers
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
Price: £40.90
In stock