Motor Sport Parts
2nd gear repair kit consisting of
- 2nd gear wheel, 41 tooth (20:41)
- 1st/2nd shift sleeve
- 2nd gear synchros (3 part)
987 2nd gear
987 1st/2nd shift sleeve
987 1st or 2nd synchros
987 3rd-6th synchros
987 3rd/4th shift sleeve
987 5th/6th shift sleeve
Fits all G87/20 transmissions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
01X311300
The product you are viewing cross references to these numbers
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Fits all models 2005 on* G87.20, G87.21, G87.10
*Let us know which differential you are using. We may have to modify the supplied bearing.
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Porsche Gearbox Motorsport Parts | Precision Components for Track-Ready Performance
Motorsport gearbox parts are engineered to deliver the precision, strength, and durability demanded by high-performance and racing environments. Designed to withstand extreme torque, heat, and rapid gear changes, these components optimise power delivery and shifting accuracy under competition conditions.
At Design911, we supply race-proven gearbox motorsport parts that meet or exceed high-performance engineering standards. Our range includes upgraded gears, bearings, selector forks, differential components, cooling systems, and reinforced casings — all precision-machined for endurance, reliability, and efficiency.
Whether you’re preparing your Porsche for competitive motorsport, endurance racing, or high-performance track use, our gearbox motorsport components provide superior response, strength, and reliability lap after lap.
What Do Motorsport Gearbox Parts Do?
Motorsport gearbox components enhance the transmission’s ability to handle increased power and aggressive driving while maintaining smooth, rapid gear engagement.
Core Functions:
- Strengthen the drivetrain for high-torque and high-RPM use.
- Improve gear shift speed, precision, and durability.
- Optimise cooling and oil flow for prolonged performance.
- Reduce friction and heat build-up under extreme load.
- Provide improved reliability in racing and endurance conditions.
These upgrades are essential for performance-tuned Porsches that experience higher stresses than standard road use can withstand.
Why Do Standard Gearbox Components Fail in Motorsport Conditions?
Under high stress, standard gearbox parts can quickly reach their performance limits. Motorsport use exposes them to extreme conditions that accelerate wear and mechanical fatigue.
Common Causes of Failure Include:
- Excessive heat from extended high-RPM driving.
- Gear tooth wear or chipping under racing torque loads.
- Oil starvation during hard cornering or acceleration.
- Bearing fatigue due to extreme lateral and axial forces.
- Deformation or cracking of casings from repeated stress cycles.
When standard parts are pushed beyond their design limits, they can cause shifting issues, noise, leaks, or even catastrophic gearbox failure.
Why Replace or Upgrade to Motorsport Gearbox Parts?
Upgrading to motorsport-grade gearbox components enhances performance, durability, and responsiveness — ensuring your Porsche performs flawlessly in competitive conditions.
Key Benefits:
- Superior strength for high-power applications.
- Enhanced cooling and lubrication for sustained performance.
- Faster, smoother, and more precise shifting under load.
- Increased longevity and reliability in race conditions.
- Available for Porsche 911, Cayman, Boxster, GT3, and Cup models.
- Perfect for performance builds, track conversions, and endurance racing.
Motorsport gearbox parts are not only replacements — they
are precision upgrades that deliver consistent, race-winning reliability and
performance.
Highlights