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Rear Control arm (Slim Type) 'Coffin arm' - With Lower Ball Joint. Porsche 987 / 981 / 718 (982) Cayman & Boxster / 997 Carrera/Turbo/GT2/GT3 - 98133105302
98133105302/2
Vehicle Group
- 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 Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
- 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 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- 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
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Information
Slim-Type Rear Control Arm (also known as "Coffin Arm") with Lower Ball Joint.
The rear control arm (also known as the “coffin arm”) slim type, with lower ball joint) is designed for the rear axle of multiple Porsche models including the 987 Boxster/Cayman, 981 Boxster/Cayman, 718 (982) Boxster/Cayman and 997-series Carrera, Turbo and GT2/GT3.
Sold individually - price is per unit.
Porsche 997 Turbo / GT2 (Excl. RS) 2007 - 2013
Porsche 997 GT3 (Excl. RS) 2007 - 2011
Porsche 997.2 Carrera 2009 - 2012
Porsche 987.2 Boxster 2009 - 2012
Porsche 987.2 Cayman 2009 - 2012
Porsche 981 Boxster / S 2012 - 2016
Porsche 981 Cayman / S 2014 - 2016
Porsche 981 Boxster Spyder 2016
Porsche 718 (982) Boxster 2017>>
Porsche 718 (982) Cayman 2017>>
Must be replaced in pairs
Porsche 997.1 Carrera 2007 - 2009
Porsche 987.1 Boxster 2007 - 2008
Porsche 987.1 Cayman 2007 - 2008
• Position on Vehicle: Rear axle, control arm position linking rear wheel carrier / suspension to chassis, controlling camber, toe and lateral track stability.
• Cross-Reference / Alternative Numbers: OE ref part 981 331 053 02; also referenced 99733105301 / 99733105302 / 99733105303 / 98133105300 / 98133105301.
Built to meet factory specification and supplied with a premium ball joint, it restores accurate alignment, improves handling precision and ensures long-term durability.
The rear control arm is a critical component in maintaining rear axle geometry, wheel alignment, and dynamic stability under acceleration, cornering or load. A worn, bent or loose control arm can lead to:
• Rear instability or wandering at speed
• Uneven or rapid tyre wear on the rear axle
• Clunking or knocking noises from the rear suspension
• Loss of alignment control (camber/toe drift).
Replacing the arm ensures the rear suspension operates as intended, restoring precision and safety.
When and why to replace:
• You hear a pronounced knock or clunk from the rear suspension when hitting bumps or changing direction.
• Rear tyres wear unevenly or you cannot hold rear alignment specification.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98133105302
The product you are viewing cross references to these numbers
The rear control arm (also known as the “coffin arm”) slim type, with lower ball joint) is designed for the rear axle of multiple Porsche models including the 987 Boxster/Cayman, 981 Boxster/Cayman, 718 (982) Boxster/Cayman and 997-series Carrera, Turbo and GT2/GT3.
Sold individually - price is per unit.
Porsche 997 Turbo / GT2 (Excl. RS) 2007 - 2013
Porsche 997 GT3 (Excl. RS) 2007 - 2011
Porsche 997.2 Carrera 2009 - 2012
Porsche 987.2 Boxster 2009 - 2012
Porsche 987.2 Cayman 2009 - 2012
Porsche 981 Boxster / S 2012 - 2016
Porsche 981 Cayman / S 2014 - 2016
Porsche 981 Boxster Spyder 2016
Porsche 718 (982) Boxster 2017>>
Porsche 718 (982) Cayman 2017>>
Must be replaced in pairs
Porsche 997.1 Carrera 2007 - 2009
Porsche 987.1 Boxster 2007 - 2008
Porsche 987.1 Cayman 2007 - 2008
• Position on Vehicle: Rear axle, control arm position linking rear wheel carrier / suspension to chassis, controlling camber, toe and lateral track stability.
• Cross-Reference / Alternative Numbers: OE ref part 981 331 053 02; also referenced 99733105301 / 99733105302 / 99733105303 / 98133105300 / 98133105301.
Built to meet factory specification and supplied with a premium ball joint, it restores accurate alignment, improves handling precision and ensures long-term durability.
The rear control arm is a critical component in maintaining rear axle geometry, wheel alignment, and dynamic stability under acceleration, cornering or load. A worn, bent or loose control arm can lead to:
• Rear instability or wandering at speed
• Uneven or rapid tyre wear on the rear axle
• Clunking or knocking noises from the rear suspension
• Loss of alignment control (camber/toe drift).
Replacing the arm ensures the rear suspension operates as intended, restoring precision and safety.
When and why to replace:
• You hear a pronounced knock or clunk from the rear suspension when hitting bumps or changing direction.
• Rear tyres wear unevenly or you cannot hold rear alignment specification.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98133105302
99733105301
99733105302
99733105303
98133105301
98133105300
The product you are viewing cross references to these numbers
£105.00
Now £94.50
In stock
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: £12.77
In stock
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
£10.55
Now £9.49
Arriving soon