Ball Joints
Fits - Left and right.

Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BALLJKIT911
The product you are viewing cross references to these numbers
- 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)

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Related, superseded, cross reference or alternative numbers for comparison.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
The product you are viewing cross references to these numbers
- 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)
Enhance cornering precision and grip with the De-Cambered Ball Joint Kit, engineered for Porsche 911 and Porsche 914 models.
This “new type” FI16 ball joint includes a built-in negative camber offset of approximately 3 mm, allowing the front suspension to maintain improved tire contact during aggressive cornering.
The result is sharper turn-in, increased lateral grip, and more consistent geometry under load — all without the need for additional camber plates or major suspension modification.
Sold As A Kit.
x2 Kits Required Per Car.
Fits:
Diagram Ref No 17, 19, 20, 21
What This Product Does:
Typical Symptoms / Use-Case Indicators:
- Camber losses under hard cornering (e.g. inside shoulder lifting)
- You run aggressive alignment on track setups and want to preserve negative camber under load
- You want a simple way to bias the geometry slightly without major suspension changes
Why Choose A De-Cambered Joint:
- Improved Tire Contact Patch – Keeps the tire flatter to the road mid-corner.
- Better Cornering Balance – Reduces understeer by optimizing front grip.
- Maintains OEM Geometry – No structural modification needed.
- Durable, Race-Proven Design – Forged construction handles high loads.
- Enhanced Precision – Ideal for track-day cars, restorations, and spirited street driving.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134104905
The product you are viewing cross references to these numbers
- 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)
Upgrade your front suspension geometry with the De-Cambered Ball Joint Set (FI-18). These offset ball joints are engineered to provide an inbuilt additional 3mm negative camber bias, improving front-end grip and cornering response without the need for major suspension modifications.
Sold As A Set.
x2 Sets Required Per Car.
Fits:
- 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)
What This Product Does:
- Increases Negative Camber “by Default” - Because the stud is offset outward, the wheel gets a small amount of negative camber without requiring changes at the top strut mount. This helps maintain better contact patch under cornering forces.
- Counters Camber Loss Under Load - In cornering, body roll or suspension compression tends to reduce negative camber (i.e. flatten the tire). The de-cambered joint helps offset that loss so the inside tire stays more planted.
- Improves Handling Stability and Turn-In - With more negative camber under load, the front end grips better, reducing understeer and making turn-in sharper.
- Mild Track / Performance Tuning Without Major Mods - Rather than needing to retrofit adjustable camber plates or change strut towers, this joint gives a modest camber “boost” in a bolt-on manner.
- Retains Full Ball Joint Functionality - It still allows articulation (steering, suspension travel) like a normal ball joint — the offset is only in its alignment, not in its motion.
- Knocking or Clunking Noises - A dull knock from the front suspension, particularly over bumps or while turning, often indicates play in the ball joint.
- Uneven or Excessive Tire Wear - Worn joints allow uncontrolled camber and toe changes, wearing the inside or outside edges of the front tires.
- Loose or Wandering Steering - When the ball joint develops play, the steering feels vague or “floaty” — the car no longer holds a consistent line through corners.
- Vibration or Shimmy at Speed - Free play in the joint can cause steering wheel vibration, particularly over rough surfaces.
- Visible Wear or Damage - Torn dust boots, leaking grease, or excessive movement when inspected during service are clear signs the joints need replacing.
- Inconsistent Handling Under Load - The car may feel unstable mid-corner or react unpredictably to bumps due to geometry shifts caused by worn ball joints.
- Restores Safety & Structural Integrity - The ball joint supports the front suspension load. A failure can cause complete loss of steering control.
- Maintains Proper Wheel Alignment - Fresh joints eliminate unwanted camber/toe drift and keep tires correctly aligned under all loads.
- Improves Steering Precision - Tight, new ball joints restore that crisp Porsche steering feel and predictable handling
- Enhances Cornering Grip - The de-cambered design adds built-in negative camber, improving tire contact and front-end grip through corners.
- Prevents Secondary Wear - Worn joints increase stress on tires, control arms, and suspension bushings — leading to expensive downstream repairs.
- Perfect for Performance & Track Use - The offset camber geometry helps maintain optimal contact patches during high lateral loads, reducing understeer and improving lap-to-lap consistency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134104704
The product you are viewing cross references to these numbers
- 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)
Incl. ball joint, hub nut, lock plate, split pin.
Providing 3mm additional negative camber.
Price is Each
Fits:
Porsche 911 1972-89
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134104905
The product you are viewing cross references to these numbers
- 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)
Incl. ball joint, hub nut, lock plate, split pin.
Providing 3mm additional negative camber.
Price is Each

Fits:
Porsche 911 RS 1974-89 (cars fitted with RS type suspension)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134104704
The product you are viewing cross references to these numbers
- 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)

Fits - Left and right.

Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Price is for each.
- 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)
Fits: Left and right. Sold each.

Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134111907
The product you are viewing cross references to these numbers
- 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)


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
- 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)
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.
90134142600
The product you are viewing cross references to these numbers
- 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)

Fits - Left and right.

Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Price is for each.
- 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)

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.
90134142600
The product you are viewing cross references to these numbers
- 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)

Sold each - 2 required per
Fits:
Porsche 911 08/1972-89
Porsche 914 08/71-02/76
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134104906
The product you are viewing cross references to these numbers
- 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)

Fits:
Porsche 911 / 912 / 930 1972-89
Porsche 914 1972-76
Complete Your Ball Joint Installation
Complete your ball joint installation with our hardware kit. The kit includes threaded ring, pin and lock plate – all required factory hardware.
Kit Includes:
901 341 425 00 – Grooved Nut (2)
901 341 426 00 – Tab Washer (2)
N 012 521 1 – Cotter Pin (2)
911 341 119 06 – Threaded Pin (2)
Nut (2)
Flat Washer (2)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
2081501
The product you are viewing cross references to these numbers
- 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)


Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
00072128020
The product you are viewing cross references to these numbers
- 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)

Fits - Left and right.

Fits:
Porsche 911 1969-89
Porsche 914 1972-76
Price is for each.
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134111907
The product you are viewing cross references to these numbers
- 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)