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De-Cambered Ball Joint For A-Arm Set - (FI 18). Porsche 911 RS 1974-89 ❭ 90134104704
- 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)
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 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21

Fits:
Porsche 95B Macan 2014-18
Porsche Macan II 2019>>
Length: 108 mm
Cone Size: 24.5 mm
Cone Pitch 1:5
Thread Size: M14x1.5
Outer diameter: 42 mm
Click 'Zoom in' for large parts diagram,
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB407689
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21

Fits:
Porsche 95B Macan 2014-18
Porsche Macan II 2019>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB407689
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
Lower Ball Joint is a direct-fit replacement for the original lower front ball joint used in Porsche Macan 95B / 95B.2 models. This joint (also known as a swivel joint) connects the lower control arm to the steering knuckle, allowing pivoting motion while handling load. It is commonly cross-referenced to 4G0407689C.
Fits:
Porsche 95B Macan 2014 - 2018
Porsche Macan II 2019>>
Length: 108 mm
Cone Size: 24.5 mm
Cone Pitch 1:5
Thread Size: M14x1.5
Outer diameter: 42 mm
Diagram ref no 7
Fitment & Function:
• Where it fits: Lower front suspension, connecting control arm to steering knuckle
• Function: Enables steering articulation; handles vertical, lateral, and longitudinal load transfer while maintaining wheel alignment
The Joint for Porsche 95B Macan and Macan II (product code PAB407689) is a vital suspension component that plays a key role in connecting the steering knuckle to the control arm. This high-quality ball joint ensures smooth movement and stability in the vehicle's suspension system, contributing to responsive handling and improved ride comfort. Engineered for durability and performance, it helps absorb shocks and reduce wear on other suspension parts, making it an essential replacement part for maintaining your Porsche Macan's driving dynamics and safety.
When ball joints wear, internal clearances increase, leading to steering vibration, knocking noise, poor alignment retention, and uneven tire wear.
Replace the joint when you detect:
• Play or looseness in the wheel under load
• Clunking sound when hitting bumps Uneven front tire wear
• During control arm replacement, suspension overhauls, or alignment issues
Using a high-precision OE Match PAB407689 ensures restored steering stability and safety, with re-established tight tolerances and correct suspension geometry.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB407689
The product you are viewing cross references to these numbers
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