adjusting screw Genuine Porsche part 91134111502

Code: 91134111502

Genuine Porsche part

adjusting screw

The product code 91134111502 was also found on these diagrams

401-000 - adjusting screw

Front axle / Stabiliser 914 1970-76

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

3 3 3

Wishbone ball joint front - cotter pin. Porsche 911 1969-89 / 914 1972-76

91134111907/1

Product 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Related, superseded, cross reference or alternative numbers for comparison.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

91134111906

91134111907

The product you are viewing cross references to these numbers

4 4 4 4

Front crossmember reverse lever adjusting screw. Porsche 911 / 912 / 914

91134111502/1

Product Information

Front crossmember reverse lever adjusting screw.
This is an replacement adjusting screw for the front crossmember reverse lever - a critical component in the torsion bar suspension system of classic Porsche vehicles. Its mounted on the front crossmember to calibrate the reverse lever position and torsion bar preload.
Sold each, 2 required per vehicle.

Fits:
Porsche 912 1969
Porsche 911 T/E/S 1969 - 1973
Porsche 911 1974 - 1989
Porsche 911 (930) Turbo 1975 - 1989
Porsche 914 1970 - 1976

Diagram ref no 20

The front crossmember reverse lever adjusting screw provides fine-tuning of the reverse lever assembly on the front suspension crossmember. It enables precise adjustment of the torsion bar preload and suspension geometry, which affects ride height, wheel alignment, and handling balance.

This screw works within the front crossmember mechanism to establish the correct positioning of the reverse lever, which in turn ensures that the torsion bars and lever arms are calibrated accurately to support the vehicle’s weight and suspension movements.

The front suspension crossmember and associated reverse lever mechanism play a key role in how the vehicle’s torsion bars and front suspension geometry behave. A worn, damaged, or incorrect adjusting screw can cause:
• Improper torsion bar preload
• Uneven or incorrect ride height
• Poor alignment and handling issues
• Uneven tyre wear
• Steering imbalance

Replacing a worn or corroded component restores proper adjustment capability, enhances suspension accuracy, improves handling response, and helps maintain original suspension setup.

Replace this adjusting screw if:
• Threads are damaged, corroded, or worn
• Adjustment becomes difficult or imprecise
• You’re performing front suspension removal or rebuild
• Ride height or alignment cannot be correctly set
• Front crossmember or torsion bar work is underway

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91134111502

91134111500

91134111502

91434111701

91134112100

91434111700

91134111501

The product you are viewing cross references to these numbers

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adjusting screw Genuine Porsche part 91134111502