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Porsche // 911 & 912 (1965-1989) // 911 1978-1989 3.3L Turbo (930)
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De-Cambered Ball Joint For A-Arm - Old Type (FI16). Porsche 911 1968-72 - 90134104904
90134104904/5
Vehicle Group
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Information
De-Cambered Ball Joint For A-Arm - Old Type (FI16).
Upgrade your front suspension precision with this de-cambered ball joint, designed for early Porsche 911 and 914 models (1968-72) using the FI16 suspension system. This ball joint features an offset mounting position, delivering approx 3 mm additional negative camber per side, improving front end grip and cornering response.
Sold Each.
x2 Required Per Car.
Fits:
Diagram Ref No 13, 15, 16, 17
What This Product Does:
Symptoms & When You Might Need It:
Why This Upgrade Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134104904
The product you are viewing cross references to these numbers
Upgrade your front suspension precision with this de-cambered ball joint, designed for early Porsche 911 and 914 models (1968-72) using the FI16 suspension system. This ball joint features an offset mounting position, delivering approx 3 mm additional negative camber per side, improving front end grip and cornering response.
Sold Each.
x2 Required Per Car.
Fits:
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Diagram Ref No 13, 15, 16, 17
What This Product Does:
- By offsetting the ball joint mounting location, the bottom of the strut / control arm is moved slightly outward, thereby increasing the negative camber angle of the front wheels (camber meaning the top of the tire tilts inward). This helps maintain better contact patch under cornering or when the car is loaded laterally.
- Improves front end grip and handling when cornering heavily by limiting camber loss under load.
- Because it uses upgraded hardware, it ensures the A-arm to spindle connection remains precise, reducing deflection or unwanted movement compared to worn standard joints.
Symptoms & When You Might Need It:
- If you’ve lowered the front of the car, added stiffer springs or anti-roll bars, you may find the standard camber spec is insufficient — tires may roll onto the outer edge when cornering. This de-cambered joint helps adjust for that.
- Worn or loose ball joints can cause front end play, knocking noises when the steering is turned or when hitting bumps, and uneven tire wear (especially on the inner or outer shoulder). The upgrade version helps eliminate play and adjust geometry.
- Loss of front negative camber under lateral load: you might notice less cornering grip, front tires scrub or overheat on the outer edge, or the car understeers more than normal.
- Visible wear: when inspecting, you might find the original ball joint housing is worn, the stud loosened, rubber boots torn, or excessive play when lifting the wheel and wiggling the control arm.
Why This Upgrade Matters:
- For enthusiasts, track-day users or cars modified with lowered suspension and stiffer springs, the factory ball joint may no longer allow optimal camber and geometry settings. This de-cambered version gives a relatively easy bolt-in method to move the geometry in the right direction without major suspension redesign.
- It offers both improved handling (by more negative camber) and also improved front end stability and precision (by replacing worn or standard joints with a stronger, correctly designed part).
- Considering the age of 911/914 front suspension components, renewing joints such as this one is a worthwhile investment in safety, longevity and driving feel.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134104904
90134104904
90134104900
The product you are viewing cross references to these numbers
Price: £135.90
In stock
Related products
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Information
Wishbone ball joint front - cotter pin
Ball joint lock pin is an suspension fastener designed to secure the front lower ball joint to the strut or wishbone assembly on classic Porsche models. It installs into the ball joint mount to secure the connection between suspension links and steering knuckles. It’s suitable for maintenance, rebuilds, or restoration of front suspension components and fits directly without modification.
Sold each, Fits left and right.
Fits:
Porsche 911 1969 - 1989
Porsche 914 1972 - 1976
Diagram ref no 20
The lock pin provides a secure fastening point that holds the front lower ball joint in place, ensuring the suspension components remain correctly aligned under load and motion. It helps transmit steering forces while keeping the joint assembly stable during driving.
Installed through the ball joint and suspension link interface, this pin maintains clamping and positional integrity, aiding the suspension’s ability to articulate smoothly while resisting unwanted movement. It works in conjunction with the control arm and steering knuckle to support safe, responsive handling.
Front suspension hardware like the ball joint lock pin can wear, corrode, or lose clamping strength over time, which may lead to play in the suspension, uneven tyre wear, and compromised steering feel. Replacing worn or damaged pins with OE Match parts helps maintain precise suspension geometry and consistent handling characteristics.
When to replace:
• Ball joint pin is corroded, bent, or worn
• Loose or sloppy front suspension feel
• During ball joint, control arm, or strut service
• Restoration of classic suspension systems
• After removal or disassembly of front suspension
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134111907
The product you are viewing cross references to these numbers
Ball joint lock pin is an suspension fastener designed to secure the front lower ball joint to the strut or wishbone assembly on classic Porsche models. It installs into the ball joint mount to secure the connection between suspension links and steering knuckles. It’s suitable for maintenance, rebuilds, or restoration of front suspension components and fits directly without modification.
Sold each, Fits left and right.
Fits:
Porsche 911 1969 - 1989
Porsche 914 1972 - 1976
Diagram ref no 20
The lock pin provides a secure fastening point that holds the front lower ball joint in place, ensuring the suspension components remain correctly aligned under load and motion. It helps transmit steering forces while keeping the joint assembly stable during driving.
Installed through the ball joint and suspension link interface, this pin maintains clamping and positional integrity, aiding the suspension’s ability to articulate smoothly while resisting unwanted movement. It works in conjunction with the control arm and steering knuckle to support safe, responsive handling.
Front suspension hardware like the ball joint lock pin can wear, corrode, or lose clamping strength over time, which may lead to play in the suspension, uneven tyre wear, and compromised steering feel. Replacing worn or damaged pins with OE Match parts helps maintain precise suspension geometry and consistent handling characteristics.
When to replace:
• Ball joint pin is corroded, bent, or worn
• Loose or sloppy front suspension feel
• During ball joint, control arm, or strut service
• Restoration of classic suspension systems
• After removal or disassembly of front suspension
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134111907
91134111906
91134111907
The product you are viewing cross references to these numbers
Price: £14.25
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Information
Wishbone Ball Joint Front - Cotter Pin Nut.
Fits Left And Right.
Sold Each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90008400402
The product you are viewing cross references to these numbers
Fits Left And Right.
Sold Each.
Fits:
Porsche 911 1969>>1989
Porsche 914 1972>>1976
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90008400402
90008400402
99908401902
The product you are viewing cross references to these numbers
Price: £2.11
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Information
Wishbone Ball Joint Front - Cotter Pin Washer.
Fits - Left and right.
Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Price is for each.
Fits - Left and right.
Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Price is for each.
Price: £1.00
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Information
Wishbone ball joint front - groove nut. Fits - left and right.
Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134142501
The product you are viewing cross references to these numbers
Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134142501
90134142500
90134142501
The product you are viewing cross references to these numbers
Price: £29.25
In stock