Control arm lower rear Hex-head bolt (M14 × 1.5 × 90). Porsche 986/987 Boxster / 987C Cayman - 90037820902
90037820902
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- 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 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Hexagon-head bolt (M14 × 1.5 × 90 mm) for Rear lower control arm.
This bolt secures the rear lower control arm to the subframe connection (left or right side), forming one of the key structural connections in the rear suspension system. It maintains the correct alignment and pivoting geometry required for stable handling, proper tire wear, and balanced ride quality.
Sold each, 2 required for the rear axle of the vehicle.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2006 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 16
• Replacing: 90037816009, 90037819909, 90037820909, 90037820901
• Thread/Length: M14 × 1.5 × 90 mm
• Application: Rear axle – lower control arm to chassis connection
Suspension hardware is engineered to exact tolerances to handle extreme dynamic loads. Using Genuine Porsche bolts guarantees correct thread engagement, surface treatment, and tensile strength for the specific control arm design. This ensures consistent alignment, safety, and chassis rigidity under demanding driving conditions.
Replace this bolt when:
• Performing rear suspension or control-arm service.
• The original bolt is corroded, stretched, or damaged.
• Completing a full suspension refresh or alignment adjustment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037820902
The product you are viewing cross references to these numbers
This bolt secures the rear lower control arm to the subframe connection (left or right side), forming one of the key structural connections in the rear suspension system. It maintains the correct alignment and pivoting geometry required for stable handling, proper tire wear, and balanced ride quality.
Sold each, 2 required for the rear axle of the vehicle.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2006 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 16
• Replacing: 90037816009, 90037819909, 90037820909, 90037820901
• Thread/Length: M14 × 1.5 × 90 mm
• Application: Rear axle – lower control arm to chassis connection
Suspension hardware is engineered to exact tolerances to handle extreme dynamic loads. Using Genuine Porsche bolts guarantees correct thread engagement, surface treatment, and tensile strength for the specific control arm design. This ensures consistent alignment, safety, and chassis rigidity under demanding driving conditions.
Replace this bolt when:
• Performing rear suspension or control-arm service.
• The original bolt is corroded, stretched, or damaged.
• Completing a full suspension refresh or alignment adjustment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037820902
90037813501
90037820902
90037816009
90037819909
90037820909
90037820901
The product you are viewing cross references to these numbers
Price: £9.10
In stock
Shop Securely
12 Month Warranty
Worldwide Delivery
Related products
Information
Rear control arm hexagon head bolt, M 14 X 100.
Designed for the rear axle control arm on Porsche 996 and 997, it provides exact factory fit, strength, and corrosion resistance.
Sold each.
Fits:
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Diagram ref no 18
Thread size / spec: M14 × 1.5 × 100 mm
Supersession: Part 90037805109 is superseded by 90037805101
This bolt secures the rear suspension control arm to the wheel carrier or subframe, providing the clamping force needed to maintain accurate suspension alignment and minimize movement under load.
Over years of service, high torque loads, vibration, and exposure to road conditions can weaken or corrode suspension bolts. A compromised bolt may lead to improper alignment, handling instability, or noise under braking and cornering.
When to replaces:
• During control arm replacement, alignment service, or rear suspension rebuilds
• If original bolts show corrosion, stretching, or thread wear
• As part of preventive maintenance when reassembling load-bearing suspension joints
Replacing with Genuine Porsche hardware ensures structural integrity, precise fit, and lasting performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037805101
The product you are viewing cross references to these numbers
Designed for the rear axle control arm on Porsche 996 and 997, it provides exact factory fit, strength, and corrosion resistance.
Sold each.
Fits:
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Diagram ref no 18
Thread size / spec: M14 × 1.5 × 100 mm
Supersession: Part 90037805109 is superseded by 90037805101
This bolt secures the rear suspension control arm to the wheel carrier or subframe, providing the clamping force needed to maintain accurate suspension alignment and minimize movement under load.
Over years of service, high torque loads, vibration, and exposure to road conditions can weaken or corrode suspension bolts. A compromised bolt may lead to improper alignment, handling instability, or noise under braking and cornering.
When to replaces:
• During control arm replacement, alignment service, or rear suspension rebuilds
• If original bolts show corrosion, stretching, or thread wear
• As part of preventive maintenance when reassembling load-bearing suspension joints
Replacing with Genuine Porsche hardware ensures structural integrity, precise fit, and lasting performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037805101
90037805101
90037805109
The product you are viewing cross references to these numbers
Price: £13.19
In stock
Shop Securely
12 Month Warranty
Worldwide Delivery
Information
Rear control arm hexagon head bolt, M 14 X 100.
Built to factory specs for the rear axle control arms on 996 and 997 models, they deliver the fit and strength your high-performance suspension deserves.
Sold each.
Fits:
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Diagram ref no 18
Thread size / spec: M14 × 1.5 × 100 mm
Supersession: 90037805109, 90037805101
Since the control-arm mounting bolt bears major structural loads and undergoes vibration and torque stress, it can become worn, stretched, corroded or fatigued over time. This reduces its ability to maintain correct alignment and clamping force - potentially resulting in handling issues or component wear. Replacement is especially important when performing rear suspension service, control arm replacement, or alignment work. Installing the correct bolt restores reliable mounting integrity and ensures the rear axle geometry remains stable under load.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037805101
The product you are viewing cross references to these numbers
Built to factory specs for the rear axle control arms on 996 and 997 models, they deliver the fit and strength your high-performance suspension deserves.
Sold each.
Fits:
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Diagram ref no 18
Thread size / spec: M14 × 1.5 × 100 mm
Supersession: 90037805109, 90037805101
Since the control-arm mounting bolt bears major structural loads and undergoes vibration and torque stress, it can become worn, stretched, corroded or fatigued over time. This reduces its ability to maintain correct alignment and clamping force - potentially resulting in handling issues or component wear. Replacement is especially important when performing rear suspension service, control arm replacement, or alignment work. Installing the correct bolt restores reliable mounting integrity and ensures the rear axle geometry remains stable under load.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037805101
90037805101
90037805109
The product you are viewing cross references to these numbers
Price: £10.55
In stock
Shop Securely
12 Month Warranty
Worldwide Delivery