Wheel hub clamping nut, Front. Porsche 911 / 924S / 928 / 944 / 968 M18x1 › 91134167300

This OE Match front wheel hub clamping nut is an M18x1 nut supplied with its bolt for Porsche 911 / 924S / 928 / 944 / 968 applications with an 18mm front spindle. It forms part of the front wheel-bearing retaining and adjustment arrangement.

Fits

For cars with 18mm front spindle - M18x1 nut with bolt.

• Porsche 911 1970–89
• Porsche 911 (930) TURBO 1975–89
• 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 1975–1977 3.0L Turbo (930)
• Porsche 911 1978–1989 3.3L Turbo (930)
• Porsche 911 1984–1986 3.2L
• Porsche 911 1987–1989 3.2L G50
• Porsche 911 1978–1983 3.0L / SC
• Porsche 924S 1986–88
• Porsche 924S 2.5L 1986–87
• Porsche 924S 2.5L 1988
• Porsche 928 1978–95
• Porsche 928 4.5L 1978–82
• Porsche 928S 4.7L 1981–83
• Porsche 928S2 4.7L 1984–86
• Porsche 928S4 5.0L 1987–92
• Porsche 928GT 5.0L 1989–91
• Porsche 928GTS 5.4L 1992–95
• Porsche 944 1982–91
• Porsche 944 2.5L 8V 1982–87
• Porsche 944 2.7L 8V 1988–89
• Porsche 944S 2.5L 16V 1987–88
• Porsche 944S2 3.0L 16V 1989–91
• Porsche 944 Turbo 2.5L 8V 1985–88
• Porsche 944 Turbo 2.5L 8V 1989–91
• Porsche 944 Turbo S 2.5L 8V 1988
• Porsche 968 1992–95
• Porsche 968 3.0L 1992–94
• Porsche 968 Sport 3.0L 1994–95
• Porsche 968 CS 3.0L 1993–95
• Porsche 968 Turbo S 3.0L 1993–94

Diagram Ref No 8

Required Quantity
Two required per car for the applicable front spindle arrangement. Sold individually, with a bolt.

What Is This Part?
This is the threaded clamping nut used at the outer end of the front wheel spindle. It works with the thrust washer and wheel-bearing assembly to retain the hub and establish the bearing adjustment. The clamping bolt secures the nut once the adjustment has been set. Its condition is therefore relevant whenever the front hub is removed or the wheel bearings are inspected or renewed.

What Does This Part Do?

• Retains the bearing assembly: Threads onto the front spindle and works with the thrust washer to hold the assembly in position.
• Allows bearing adjustment: Provides the threaded adjustment point used when setting front wheel-bearing clearance.
• Secures the setting: Uses its clamping bolt to hold the nut at the adjusted position.
• Completes the retaining arrangement: Works alongside the spindle, thrust washer and bearings rather than replacing those supporting components.

Why Replace This Part?
Replacement may be necessary if the nut has damaged threads, a cracked or distorted clamping section, or corrosion that prevents correct adjustment. Damage around the bolt fixing can also prevent the nut from being secured properly. Check the spindle threads and associated washer at the same time, as replacing the nut alone will not correct damage elsewhere in the assembly.

During wheel-bearing work, inspect the existing nut before deciding whether it can be refitted. Do not assume this clamping nut follows the tightening procedure used for a conventional driveshaft nut: use the vehicle-specific bearing adjustment and clamping-bolt instructions.

When to Replace This Part?

• Damaged threads: The nut binds, cross-threads or will not engage correctly on an undamaged spindle.
• Cracks or distortion: The clamping section is visibly damaged or no longer seats correctly.
• Damaged bolt fixing: The bolt or its threaded fixing cannot secure the nut as required.
• Significant corrosion: Deterioration affects the threads, seating face or clamping action.
• Persistent wheel play: Inspect the nut, bearing adjustment, bearings and spindle together; movement alone does not identify the nut as faulty.
• Removal damage: Renew the nut if dismantling has left it unsuitable for correct adjustment and refitting.

Where Is This Part Fitted?
Location: At the outer end of the front wheel spindle, alongside the thrust washer and outer wheel bearing in the front hub assembly.

Technical Details

• Thread: M18x1.
• Spindle application: 18mm front spindle.
• Supplied assembly: Clamping nut with bolt.

FAQs

• Can I reuse the existing nut? Inspect its threads, clamping section and bolt fixing, then follow the vehicle-specific workshop instructions. Replace it if damaged or if renewal is specified.
• Will a new nut cure wheel-bearing noise or play? Not necessarily. Bearing wear, incorrect adjustment and spindle damage can produce similar symptoms, so inspect the complete assembly first.
• How should it be tightened? Follow the correct bearing adjustment procedure and clamping-bolt specification for your model. No universal torque value should be assumed.

Product Summary

• Product: Front wheel hub clamping nut with bolt.
• Brand: OE Match.
• Part reference: 91134167300.
• Specification: M18x1 for an 18mm front spindle.
• Purpose: Retains and secures the front wheel-bearing adjustment.