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Ball Joints
By OE Match
- 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 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)
This groove nut is used to secure the front lower wishbone (A-arm) ball joint on classic Porsche suspension systems. Manufactured to the exact dimensions and thread specifications of the original Porsche part, it provides reliable clamping strength and precise seating of the ball joint within the control arm.
SET OF 2, each vehicle requires two for a complete front axle set.
Fits:
Porsche 911 1969 - 1989
Porsche 914 1972 - 1976
Diagram ref no 17
This groove nut locks the ball joint securely into the front wishbone, maintaining correct alignment and preventing movement under cornering loads and braking forces. Its machined groove design allows for proper engagement with a locking ring or pin, ensuring long-term stability and safety.
With age, the original groove nut may corrode, lose thread integrity, or deform during removal. Using a worn or non-spec nut can lead to incorrect torque, potential loosening, or suspension play.
Replace when:
• Replacing the front ball joints or wishbone assemblies
• The threads are damaged, corroded, or rounded
• Performing a front suspension rebuild or alignment correction
Installing a fresh groove nut ensures proper torque retention, precise alignment, and dependable suspension performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134142501
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Incl. ball joint, hub nut, lock plate, split pin.
Providing 3mm additional negative camber.
Price is Each
Fits:
Porsche 911 1968-72
Diagram ref no 13, 15, 16 and 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134104904
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 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 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)
The OE Match De-Cambered Ball Joint for A-Arm, Ø18 is a premium-quality suspension upgrade component designed for compatible Porsche models requiring increased suspension geometry adjustment for performance or motorsport applications. Manufactured to OE specifications for fit, strength and durability, this Ø18mm de-cambered ball joint is engineered to provide additional negative camber, improving tyre contact, steering precision and front-end grip during demanding driving conditions.
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)
- Porsche 914 (1970-1976)
Manufactured from high-strength forged steel with a precision-machined ball pin and heavy-duty sealed bearing assembly, the ball joint is engineered to withstand high cornering loads, braking forces and continual suspension movement. Designed for direct installation into compatible A-arms, it provides a robust and reliable solution for vehicles used on the road, track or in competition.
What This Product Does:
- Connects the front A-arm to the steering knuckle.
- Provides additional negative camber for improved suspension geometry.
- Improves front-end grip during cornering.
- Enhances steering precision and responsiveness.
- Maintains smooth suspension articulation.
- Supports improved handling in performance applications.
- Provides factory-style fitment for compatible upgraded suspension systems.
- Forms an essential part of the front suspension assembly.
Symptoms Of Wear Or Failure:
- Knocking or clunking noises from the front suspension.
- Excessive steering play.
- Uneven or accelerated tyre wear.
- Reduced steering precision.
- Vehicle wandering or instability.
- Vibration through the steering wheel.
- Excessive movement in the suspension joint.
- Split or damaged protective dust boot.
- Grease leakage from the ball joint.
- MOT or vehicle inspection failure due to excessive suspension play.
Why Replacement Matters:
- The ball joint is a critical suspension component that allows the steering knuckle and control arm to move freely while supporting the vehicle's weight. It is continually subjected to heavy braking, cornering forces, road impacts and suspension movement. Over time, internal wear, contamination or deterioration of the protective dust boot can lead to excessive play and reduced suspension accuracy.
- A worn ball joint can negatively affect steering response, wheel alignment and tyre wear while increasing the risk of suspension instability. In performance applications, worn components can significantly reduce handling precision and driver confidence.
- Replacing a worn or damaged ball joint with the OE Match De-Cambered Ball Joint restores accurate suspension geometry and improves front-end handling for compatible performance suspension setups. Manufactured from premium forged materials with precision-engineered internal components, it provides factory-style fitment, exceptional durability and the increased camber required for enhanced road holding and motorsport performance.
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 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)
The OE Match Front Wishbone Ball Joint Lock Plate is a high-quality replacement retaining component designed to securely lock and retain the front wishbone ball joint assembly in its correct position. Although small in size, this precision-engineered locking plate plays a critical role in maintaining the integrity and safety of the front suspension system.
Sold Each.
Fits:
- 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)
Manufactured to OE specifications for fit, strength and durability, the lock plate is designed to prevent movement or loosening of the ball joint retaining hardware under the constant loads and vibrations experienced during vehicle operation. It is an essential component when replacing suspension parts, carrying out front-end repairs or restoring factory-correct assembly.
What This Product Does:
- Secures and locks the front wishbone ball joint retaining hardware.
- Prevents loosening caused by vibration and suspension movement.
- Maintains correct ball joint positioning within the suspension assembly.
- Supports proper suspension geometry and alignment.
- Helps ensure safe operation of the steering and suspension systems.
- Contributes to the long-term reliability of front suspension components.
Symptoms Of Wear Or Failure:
- Loose ball joint retaining hardware.
- Unwanted movement within the suspension assembly.
- Knocking or clunking noises from the front suspension.
- Difficulty maintaining correct wheel alignment.
- Increased wear on ball joints and suspension components.
- Visible corrosion, bending or damage to the lock plate.
- Reduced security of suspension fasteners.
- Potential suspension safety concerns if retaining hardware loosens.
Why Replacement Matters:
- Lock plates are designed to provide a secondary level of security for critical suspension fasteners. Over time, corrosion, fatigue, improper installation or damage during servicing can reduce their effectiveness. Reusing worn or distorted locking components may compromise their ability to properly secure suspension hardware.
- A damaged or missing lock plate can allow retaining fasteners to gradually loosen, increasing the risk of suspension component movement and accelerated wear. In severe cases, insufficient retention of critical steering and suspension parts can affect vehicle handling and safety.
- Replacing worn or damaged lock plates helps maintain correct suspension assembly integrity, ensures secure fastening of ball joint components and supports safe, predictable vehicle handling. An OE Match replacement restores factory-style fitment and provides dependable long-term security for the front suspension system.
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 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)
This groove nut is used to secure the front lower wishbone (A-arm) ball joint on classic Porsche suspension systems. Manufactured to the exact dimensions and thread specifications of the original Porsche part, it provides reliable clamping strength and precise seating of the ball joint within the control arm.
Sold each, fits left and right
Fits:
Porsche 911 1969 - 1989
Porsche 914 1972 - 1976
Diagram ref no 17
This groove nut locks the ball joint securely into the front wishbone, maintaining correct alignment and preventing movement under cornering loads and braking forces. Its machined groove design allows for proper engagement with a locking ring or pin, ensuring long-term stability and safety.
With age, the original groove nut may corrode, lose thread integrity, or deform during removal. Using a worn or non-spec nut can lead to incorrect torque, potential loosening, or suspension play.
Replace when:
• Replacing the front ball joints or wishbone assemblies
• The threads are damaged, corroded, or rounded
• Performing a front suspension rebuild or alignment correction
Installing a fresh groove nut ensures proper torque retention, precise alignment, and dependable suspension performance.
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 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)
Stock replacement. It restores precise steering, stability, and safe handling.
Sold as a kit - Incl.: ball joint, hub nut, lock plate, split pin - 2 kits required per car.
Fits:
Porsche 911 08/1972 - 1989
Porsche 914 08/1971 - 02/1976
Diagram ref no 13, 15, 16 and 17
Mounting Location & Function:
• This ball joint connects the lower wishbone (control arm) to the steering knuckle at the front suspension of the car.
• It allows controlled pivoting and movement as the wheel travels over bumps and during steering, while maintaining a stable, precise alignment under loads.
Manufactured in Europe to OE specifications, this kit restores safe and precise steering by linking the control arm to the steering knuckle, allowing controlled tire movement. Over time, ball joints wear out or become damaged, leading to steering play, uneven tire wear, or knocking noises. Replacing them with OE Match parts ensures durability, reliability, and proper suspension performance.
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 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Price is for each.
Fits:
Fits: Left or Right
Porsche 911 08/1969-07/1971
Porsche 914 1970-1972
Diagram ref no 13, 15, 16 and 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134104904
The product you are viewing cross references to these numbers
-
shock absorber strut 911 1978-83 402-00
-
shock absorber strut 911 1987-89 402-00
-
Spring strut, shock absorber strut, lubricants 911 1970-73 402-00
-
shock absorber strut 911 1984-86 402-00
-
Shock Absorber Strut 911 1974-77 402-00
-
spring strut, shock absorber strut 911 1969 402-05
-
shock absorber strut 911 TURBO 1975-77 402-00
OEMatch Ball Joints — Fit, Function, Confidence
OEMatch ball joints for Porsche models support precise suspension movement at the pivot between control arms and steering knuckles, helping maintain stable handling and predictable steering response on both road-focused and performance-orientated vehicles.
- Performance-focused replacement ball joints for Porsche suspension systems
- Options suitable for everyday road use and more demanding driving
- Components made to original-spec dimensions for consistent engagement with surrounding suspension parts
Understanding OEMatch Ball Joints
Ball joints sit at key suspension pivot points on Porsche vehicles, linking the control arms to the steering knuckles so the wheels can move up and down while turning left or right. In use, they carry vehicle weight, manage road impacts, and help maintain the alignment geometry set during a professional wheel alignment. OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original ball joints. OE (Original Equipment) refers to parts matching original specifications for the ball joints and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM ball joints engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Many owners search for genuine or OEM ball joints; these are direct-fit alternatives designed to match the original form, fit and function. Porsche applications place particular demands on suspension components, so ball joints are typically constructed from robust housings with a spherical inner bearing and protective sealing to help resist dirt and moisture. Some performance-orientated options can also incorporate firmer internal designs to reduce compliance within the joint. OEMatch focuses on Porsche-oriented components, from suspension hardware and steering items to other supporting parts that help keep vehicles driving as intended.
- Key pivot point between suspension and steering assemblies
- Helps maintain alignment and tyre contact with the road
- Designed to operate through full steering and suspension travel
Benefits Include
- Consistent steering feel, supporting accurate inputs when cornering or braking
- Support for correct suspension geometry to help maintain predictable handling behaviour
- Replacement of worn joints can reduce unwanted play and knocking from the axle area
- Fresh components can help minimise irregular tyre wear linked to excessive joint movement
- Options available that are made to original-spec dimensions for straightforward integration with Porsche suspension layouts
Why Ball Joints Wear and Fail
- Normal wear from high mileage, road impacts and suspension movement over time
- Degraded protective boots allowing water and contaminants into the joint
- Corrosion or loss of lubrication within the ball and socket interface
- Heavy braking, rough road use or track driving increasing loads on the joint
- Previous suspension work carried out without renewing aged joints
The Importance of Replacing with OEMatch Ball Joints
Worn ball joints on a Porsche can contribute to vague steering, changes in alignment and noises over bumps, which may affect day-to-day driving confidence. Replacing tired components with OEMatch ball joints helps restore a controlled, connected feel between the steering wheel and the road, while supporting the geometry settings chosen during alignment. OEMatch ball joints are compatible with factory mounting locations and are made to original-spec dimensions for consistent performance alongside other suspension parts. This supports owners looking to maintain the intended driving characteristics of their Porsche, whether in standard road use or more performance-focused applications.
Advantages
- Porsche-focused coverage across different generations and suspension layouts
- Direct-fit replacements engineered to match original dimensions and tolerances
- Components selected to work with existing control arms, knuckles and associated hardware
- Choice of parts suitable for both replacement of worn items and performance-orientated upgrades
- Backed by the OEMatch focus on keeping Porsche vehicles supported with model-relevant parts
Support & Advice
Fitting ball joints can affect safety-critical steering and suspension systems. Installation should be carried out by a qualified technician, following model-specific procedures and torque settings. Use calibrated tools and renew any single-use fasteners where specified. After installation, a professional wheel alignment is recommended to confirm geometry settings.