Front wheel hub. Porsche 911/912 >>69 / 356C  ›  90134106509

Front Wheel Hub 40mm

OE Match 40mm front wheel hub for Porsche 356C, early 911 and 912 models. Designed as a replacement for worn, damaged or corroded original hubs, this component provides the mounting point for the front wheel and brake assembly while supporting the wheel bearings.

Fits:

• Porsche 356 C 1964-1965
• Porsche 911 (with VIN F >> 030 5100) 1965-67
• Porsche 912 Coupé (with VIN F >> 035 4000) 1965-67
• Porsche 912 Coupé (with VIN F >> 0458 100) 1965-67

Diagram ref no 8

The front wheel hub is an essential part of the vehicle's front axle assembly, allowing the wheel to rotate smoothly while maintaining secure attachment to the suspension and braking system.

Manufactured as an OE-style replacement, this 40mm hub is ideal for classic Porsche maintenance, front axle repairs and restoration projects.

What Does the Front Wheel Hub Do?

The front wheel hub connects the road wheel and brake assembly to the front axle through the wheel bearings.

It provides a secure mounting surface for the wheel and brake disc while allowing the assembly to rotate smoothly around the stationary stub axle.

A correctly functioning hub is important for maintaining wheel alignment, consistent braking performance and predictable steering response.

Why Does It Fail?

Front wheel hubs are designed to withstand considerable loads, but damage or wear can develop over time.

Common causes include:

• Worn or incorrectly adjusted wheel bearings
• Corrosion around bearing mounting surfaces
• Damage from potholes or heavy impacts
• Distortion caused by accident damage
• Wear to wheel stud mounting holes
• Incorrect bearing installation
• Damage during previous repairs
• General age-related deterioration

A damaged hub can affect the correct seating of the wheel bearings, brake disc and wheel assembly.

When Should It Be Replaced?

Replacement should be considered if:

• The hub is cracked, bent or visibly damaged
• Bearing mounting surfaces are worn or scored
• Wheel stud holes are damaged
• Excessive corrosion is present
• The hub has been distorted by an impact
• The wheel or brake disc cannot be correctly mounted
• The original hub is unsuitable for reuse during a front axle rebuild

Excessive wheel movement, vibration or bearing noise may indicate a problem with the hub assembly, although these symptoms can also result from worn wheel bearings or other suspension components.

Checks During Replacement

When replacing the front wheel hub, also inspect:

• Inner and outer front wheel bearings
• Wheel bearing races
• Front stub axle
• Wheel studs and retaining nuts
• Brake discs
• Bearing seals
• Hub grease cap
• Bearing retaining and adjustment hardware

Wheel bearings should be inspected, correctly lubricated and adjusted to the manufacturer's specifications during installation.

Porsche 356C / 911 / 912 Front Wheel Hubs & Bearing Components

The front wheel hub is a critical component of the classic Porsche front axle assembly. It supports the wheel and brake disc while working with the wheel bearings to provide smooth rotation and secure wheel mounting.

On older Porsche 356C, 911 and 912 models, wheel hubs can become damaged through corrosion, worn bearings, incorrect installation or heavy impacts. Damage to the hub or its bearing mounting surfaces can affect wheel rotation, braking consistency and steering stability.