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Porsche // 356 (1950-1965) // 356A 1955-59
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Monoball Track Rear Control Arm Bushing Set. Porsche 993 - 99333104301
99333104301/5
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
Monoball Track Rear Control Arm Bushing Set.
Transform your Porsche’s suspension precision with the Monoball Track Rear Control Arm Bushing Set.
Engineered for Porsche 993 (1995–1998) models, these high-performance bushings replace the compliant factory rubber units with Teflon-lined spherical bearings for race-grade control and alignment stability.
Sold As A Set Of 8.
x1 Set Required Per Car.
Fits:
Fits On To Diagram Ref No 3, 4, 5, 6
What This Product Does:
Why Upgrading To Monoball Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104301
The product you are viewing cross references to these numbers
Transform your Porsche’s suspension precision with the Monoball Track Rear Control Arm Bushing Set.
Engineered for Porsche 993 (1995–1998) models, these high-performance bushings replace the compliant factory rubber units with Teflon-lined spherical bearings for race-grade control and alignment stability.
Sold As A Set Of 8.
x1 Set Required Per Car.
Fits:
- 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
Fits On To Diagram Ref No 3, 4, 5, 6
What This Product Does:
- Firm Locating: The monoball cartridge provides a rigid pivot point with minimal unwanted flex, so the arm’s geometry is better preserved under load.
- Articulation: Unlike a fully rigid mount, it allows the necessary rotational and angular movement (pitch, yaw) in the control arm, but with less compliance.
- Precision: Because the deflection is greatly reduced, alignment settings (camber, toe, caster) remain more stable throughout suspension travel.
- Feedback & Connection: You feel more direct input — the suspension reacts more faithfully to changes with less “softness” from rubber compliance.
- Durability & Serviceability: Good monoball designs are sealed to exclude contaminants, and may be serviceable or greasable, extending their life compared to plain spherical bearings.
- Clunking, knocking or rattling from the rear suspension
- Unpredictable rear behavior during cornering or transitions
- Rear alignment settings shifting under load (camber / toe changes)
- Uneven tire wear on the rear — especially inner or outer edges
- A vague or soft feel to the rear — the car may feel less composed
- Loss of rear grip consistency under hard driving
Why Upgrading To Monoball Matters:
- Maximizes Consistency — geometry holds under stress, reducing alignment drift lap after lap.
- Improves Rear Feel — sensing changes becomes sharper, with more precise feedback.
- Better Handling Under Load — less compliance means less suspension “wobble” or deflection in corners.
- Protects Other Parts — less slop means less stress on trailing links, arms, and mounting points.
- Balanced Design — unlike hard solid mounts, monoball retains articulation, reducing binding and fatigue issues.
- Upgrade & Value Add — often used in track / restore builds as a high-performance component.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333104301
99333104301
99333104503
99333104703
99333104101
99333104102
99333104201
99333104202
99333104181
99333104281
99333104700
99333104702
99333114700
99333114702
99333114703
The product you are viewing cross references to these numbers
Price: £520.52
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: £15.04
In stock
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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