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Gearbox mounts (non-dynamic). Porsche 718 (982) Boxster / 718C (982C) Cayman ❭ 982399201A
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
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- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
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- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
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This OE Match transmission mount is a high-quality replacement component designed to support and secure the gearbox to the vehicle chassis in Porsche 718 models. It mount that connects the transmission assembly to the chassis structure. It uses internal damping technology to absorb drivetrain vibrations while maintaining the correct position of the gearbox. By replicating the dimensions and performance characteristics of the original Porsche part, it offers a direct-fit replacement solution suitable for maintenance or drivetrain repairs.
Sold each, Fits left and right
Fits:
Porsche 718 (982) Boxster 2.0L / 2.5L 2017>>
Porsche 718c (982C) Cayman 2.0L / 2.5L 2017>>
Diagram ref no 4
The transmission mount stabilises the gearbox and isolates drivetrain vibration from the vehicle body. It keeps the transmission correctly aligned during acceleration, braking and gear changes, helping ensure smooth power delivery and reducing noise or harshness felt inside the cabin
Function
• Drivetrain Support: Secures the transmission to the chassis structure.
• Vibration Dampening: Hydraulic design absorbs engine and gearbox vibrations.
• Alignment Stability: Maintains correct gearbox positioning under load.
• Driving Comfort: Helps reduce noise, vibration and harshness during operation.
Transmission mounts can deteriorate over time due to heat, load cycles and vibration. When worn, they may allow excessive drivetrain movement, leading to clunking noises during gear changes, increased vibration in the cabin and reduced drivetrain stability. Replacing the mount with an OE Match part restores proper gearbox support and smooth driving characteristics.
Consider replacing the transmission mount if you notice:
• Clunking or movement during gear shifts
• Increased vibration in the cabin
• Drivetrain movement under acceleration or braking
• Visible cracking or collapse of the mount
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
982399201A
The product you are viewing cross references to these numbers
- 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
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
- 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

Fits:
Porsche 996 3.4 & 3.6 Manual models except for Turbo GT2 & GT3 models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99637505505
The product you are viewing cross references to these numbers
- 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 4 3.6L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
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
The product you are viewing cross references to these numbers
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