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Control arm lower, Rear, SET OF 2. Porsche Boxster 987 / Cayman - 98733104304
98733104304/4KIT
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 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- 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
Control arm lower, Rear.
This OE Match suspension set includes two rear lower control arms (2 × 98733104304), providing a complete left-and-right replacement for the rear axle of Porsche 987 Boxster and 987 Cayman models. These arms are engineered to replicate the geometry, strength, and bushing characteristics of the original Porsche components, ensuring precise wheel alignment, stable handling, and predictable chassis behaviour.
SET OF 2 - for left and right side.
Fits:
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 8
This set is ideal for vehicles showing rear-end instability, knocking noises, or alignment issues caused by aged or worn control arm bushings.
• Part Numbers / Cross-References: 98733104304 (current), 98733104302 / 98733104303 (previous numbers)
• Position: Rear lower control arm / lateral link - connects rear axle assembly to chassis/subframe, controlling wheel lateral and longitudinal position under dynamic loading.
• Functions: Maintains correct wheel alignment geometry under load, ensures stable rear-end handling, helps manage camber and toe changes, absorbs suspension loads, supports consistent tyre contact and handling predictability.
The rear lower control arms maintain correct camber and toe alignment during suspension travel. They stabilise the rear axle under dynamic load and help ensure consistent tyre contact and grip. As a matched pair, they work together to deliver the balanced handling and responsiveness expected from a Porsche mid-engine chassis.
Benefits of replacing as a pair:
• Restores identical suspension behaviour on both sides
• Ensures consistent camber and toe alignment
• Eliminates uneven tyre wear caused by mismatched bushings
• Improves high-speed stability and cornering predictability
• Ideal for full rear suspension refresh or alignment correction
With time, the bushings and joints inside these arms deteriorate, causing unwanted movement, clunks, instability and poor alignment. Replacing both arms ensures complete restoration of rear suspension accuracy, improving handling sharpness, road feel and overall safety.
When to Replace:
• Knocking or clunking noises from the rear over bumps
• Excessive play in rear suspension arms during inspection
• Uneven or premature rear tyre wear
• Alignment cannot be maintained (camber/toe constantly shifting)
• Rear-end feels unstable during cornering or acceleration
• Performing a full suspension overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98733104304
The product you are viewing cross references to these numbers
This OE Match suspension set includes two rear lower control arms (2 × 98733104304), providing a complete left-and-right replacement for the rear axle of Porsche 987 Boxster and 987 Cayman models. These arms are engineered to replicate the geometry, strength, and bushing characteristics of the original Porsche components, ensuring precise wheel alignment, stable handling, and predictable chassis behaviour.
SET OF 2 - for left and right side.
Fits:
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 8
This set is ideal for vehicles showing rear-end instability, knocking noises, or alignment issues caused by aged or worn control arm bushings.
• Part Numbers / Cross-References: 98733104304 (current), 98733104302 / 98733104303 (previous numbers)
• Position: Rear lower control arm / lateral link - connects rear axle assembly to chassis/subframe, controlling wheel lateral and longitudinal position under dynamic loading.
• Functions: Maintains correct wheel alignment geometry under load, ensures stable rear-end handling, helps manage camber and toe changes, absorbs suspension loads, supports consistent tyre contact and handling predictability.
The rear lower control arms maintain correct camber and toe alignment during suspension travel. They stabilise the rear axle under dynamic load and help ensure consistent tyre contact and grip. As a matched pair, they work together to deliver the balanced handling and responsiveness expected from a Porsche mid-engine chassis.
Benefits of replacing as a pair:
• Restores identical suspension behaviour on both sides
• Ensures consistent camber and toe alignment
• Eliminates uneven tyre wear caused by mismatched bushings
• Improves high-speed stability and cornering predictability
• Ideal for full rear suspension refresh or alignment correction
With time, the bushings and joints inside these arms deteriorate, causing unwanted movement, clunks, instability and poor alignment. Replacing both arms ensures complete restoration of rear suspension accuracy, improving handling sharpness, road feel and overall safety.
When to Replace:
• Knocking or clunking noises from the rear over bumps
• Excessive play in rear suspension arms during inspection
• Uneven or premature rear tyre wear
• Alignment cannot be maintained (camber/toe constantly shifting)
• Rear-end feels unstable during cornering or acceleration
• Performing a full suspension overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98733104304
98733104302
98733104303
98733104304
98733114302
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Control arm lower, Rear. Porsche Boxster 987 / Cayman (98733104304/4
Price: €217.50
In stock
Related products
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Control arm lower, Rear.
Porsche 993 1994-97 joins with cross member
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104301
The product you are viewing cross references to these numbers
Porsche 993 1994-97 joins with cross member
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104301
99333104301
99333104300
The product you are viewing cross references to these numbers
Price: €472.86
Orderable
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Control Arm Upper Rear
Porsche 993 1994-97 joins wheel carrier and side section
Please click 'Zoom in' to view the diagram.
Diagram ref No 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104503
The product you are viewing cross references to these numbers
Porsche 993 1994-97 joins wheel carrier and side section
Please click 'Zoom in' to view the diagram.
Diagram ref No 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104503
99333104503
99333104501
99333104502
The product you are viewing cross references to these numbers
Price: €316.52
Orderable
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Control arm upper, Rear.
This OE Match rear upper control arm is a suspension component designed for Porsche 911 (993) models. It forms part of the multi-link rear suspension system and connects the rear wheel carrier (hub assembly) to the chassis side section, helping control wheel movement and maintain proper suspension geometry.
Sold individually, Fits left or right side - Two required per vehicle.
Fits:
Porsche 993 1994 - 1997
Diagram ref no 5 and 28.
The rear upper control arm, sometimes referred to as the rear upper forward suspension link, is a key component in the Porsche 993 multi-link rear suspension layout. It links the rear wheel carrier to the body structure and allows controlled suspension movement while keeping the wheel accurately positioned relative to the chassis.
The OE Match rear upper control arm is engineered to match factory specifications for geometry, mounting points and structural strength. It typically includes the integrated ball joint and mounting points necessary for direct installation.
This component is commonly replaced during suspension refurbishment when ball joints or bushings become worn.
Function
• Suspension Link: Connects the rear wheel carrier to the chassis
• Wheel Alignment Control: Maintains proper camber and wheel positioning
• Handling Stability: Supports balanced handling during acceleration and cornering
• Suspension Movement: Allows controlled articulation of the rear suspension
Rear suspension arms and their ball joints are constantly subjected to road impacts, braking forces and suspension movement. Over time these components can develop play or wear, leading to poor handling, suspension noise and uneven tyre wear. Replacing worn control arms helps restore correct suspension geometry and improves driving stability.
When to Replace. Consider replacing the rear upper control arm if you notice:
• Clunking or knocking noises from the rear suspension
• Excessive play in suspension joints
• Uneven rear tyre wear
• Difficulty maintaining proper wheel alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104703
The product you are viewing cross references to these numbers
This OE Match rear upper control arm is a suspension component designed for Porsche 911 (993) models. It forms part of the multi-link rear suspension system and connects the rear wheel carrier (hub assembly) to the chassis side section, helping control wheel movement and maintain proper suspension geometry.
Sold individually, Fits left or right side - Two required per vehicle.
Fits:
Porsche 993 1994 - 1997
Diagram ref no 5 and 28.
The rear upper control arm, sometimes referred to as the rear upper forward suspension link, is a key component in the Porsche 993 multi-link rear suspension layout. It links the rear wheel carrier to the body structure and allows controlled suspension movement while keeping the wheel accurately positioned relative to the chassis.
The OE Match rear upper control arm is engineered to match factory specifications for geometry, mounting points and structural strength. It typically includes the integrated ball joint and mounting points necessary for direct installation.
This component is commonly replaced during suspension refurbishment when ball joints or bushings become worn.
Function
• Suspension Link: Connects the rear wheel carrier to the chassis
• Wheel Alignment Control: Maintains proper camber and wheel positioning
• Handling Stability: Supports balanced handling during acceleration and cornering
• Suspension Movement: Allows controlled articulation of the rear suspension
Rear suspension arms and their ball joints are constantly subjected to road impacts, braking forces and suspension movement. Over time these components can develop play or wear, leading to poor handling, suspension noise and uneven tyre wear. Replacing worn control arms helps restore correct suspension geometry and improves driving stability.
When to Replace. Consider replacing the rear upper control arm if you notice:
• Clunking or knocking noises from the rear suspension
• Excessive play in suspension joints
• Uneven rear tyre wear
• Difficulty maintaining proper wheel alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104703
99333104703
99333104700
99333104702
99333114702
99333114700
99333114703
The product you are viewing cross references to these numbers
Price: €139.20
In stock