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- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Fits:
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-85
Diagram Ref No 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99905906700
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Maintain smooth wheel rotation and stable handling with this OE Match Rear Wheel Bearing. Produced to OE-style specifications, this rear wheel bearing is engineered to support the vehicle's rear hub while allowing the wheel to rotate smoothly with minimal friction. Manufactured from high-quality, heat-treated bearing steel with precision-machined rolling elements and races, it delivers exceptional durability, load-carrying capacity, and long service life, making it ideal for Porsche maintenance, repairs, and restoration projects.
Fits:
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Diagram Ref No 10
Rear wheel bearings are subjected to constant radial and axial loads, as well as exposure to heat, moisture, and road contaminants. Over time, normal wear, contamination, or loss of lubrication can cause bearing deterioration, resulting in increased noise, vibration, and wheel movement. Replacing a worn wheel bearing restores smooth wheel operation, improves vehicle stability, and helps prevent damage to the hub and suspension components. This OE Match component is an excellent choice for Porsche maintenance, repairs, and restoration projects.
What This Product Does:
- Supports the rear wheel hub and axle assembly.
- Allows smooth, low-friction wheel rotation.
- Maintains accurate wheel alignment and stability.
- Reduces rolling resistance for efficient drivetrain operation.
- Handles radial and axial loads during driving and cornering.
- Replaces worn, noisy, or damaged rear wheel bearings.
- Provides an OE-style fit for straightforward installation.
Symptoms Of Wear Or Failure:
- Humming, rumbling, or grinding noise from the rear wheel.
- Excessive play in the rear wheel or hub.
- Vibration increasing with vehicle speed.
- Uneven rear tyre wear.
- Roughness when rotating the wheel by hand.
- Heat build-up around the wheel hub.
- Bearing damage identified during brake or suspension servicing.
Why Replacement Matters:
- The rear wheel bearing is a critical component that supports the wheel hub while ensuring smooth and precise wheel rotation. As the bearing wears, friction increases and internal clearances develop, leading to noise, vibration, reduced handling precision, and additional stress on the hub, brakes, and suspension. If left unattended, a severely worn bearing can affect wheel alignment and compromise vehicle safety.
- Replacing a worn rear wheel bearing restores smooth wheel operation, improves handling stability, reduces unwanted noise, and helps protect the surrounding drivetrain and suspension components from premature wear. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Rear Wheel Bearing provides reliable fit, performance, and durability for Porsche maintenance, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90005200600
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Front Inner Wheel Bearing
Sold each
Maintain the smooth operation and safety of your classic
Porsche with this Front Inner Wheel Bearing. This
precision-engineered bearing supports the front wheel hub, allowing it to
rotate freely while carrying the vehicle's weight and maintaining accurate
wheel alignment. Manufactured from high-grade bearing steel to OE
specifications, it delivers excellent durability, precise tolerances and long
service life.
Fits:
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Diagram ref no 44
Ideal for routine maintenance, suspension overhauls or concours restorations, this OE Match bearing provides factory-style fitment and dependable performance.
What Does the Front Inner Wheel Bearing Do?
The front inner wheel bearing supports the wheel hub and allows the wheel to rotate with minimal friction while coping with the loads generated during braking, cornering and everyday driving.
Its functions include:
- Supporting the front wheel hub
- Reducing rotational friction
- Maintaining accurate wheel alignment
- Providing smooth steering
- Supporting safe braking and predictable handling
A correctly functioning wheel bearing is essential for both driving safety and ride quality.
Why Do Wheel Bearings Fail?
Wheel bearings operate under constant load and are exposed to heat, moisture and road contamination throughout their service life.
Common causes of failure include:
- Normal wear with age and mileage
- Contaminated or deteriorated grease
- Water ingress Corrosion
- Incorrect bearing adjustment
- Damage caused by potholes or impacts
As wear develops, the bearing can become noisy, rough or develop excessive play.
When Should They Be Replaced?
Replacement is recommended if you notice:
- Rumbling or humming from the front wheels
- Excessive wheel play
- Roughness when rotating the hub
- Steering vibration
- Signs of corrosion or contamination during servicing
- During front hub or brake refurbishment if wear is evident
Replacing worn bearings restores smooth wheel rotation and helps prevent premature wear of surrounding suspension and hub components.
Porsche 356 Wheel Bearings & Hub Components
The front wheel bearings are essential to the safe and reliable operation of every Porsche 356. They support the vehicle's weight while allowing the wheels to rotate smoothly under all driving conditions. As bearings wear over time, steering precision, braking performance and overall driving comfort can all be affected.
Replacing worn bearings during routine servicing or suspension refurbishment helps restore factory driving characteristics while protecting the wheel hub and associated components from unnecessary wear.
OE Match wheel bearings provide dependable performance, factory-style fitment and excellent value for both everyday driving and concours restorations.
Benefits of Replacing the Front Inner Wheel Bearing
- Restores smooth wheel rotation
- Improves steering precision
- Reduces bearing noise and vibration
- Supports safe braking and handling
- Extends the life of hub components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90005300600
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
This front inner wheel bearing is the one we prefer for Late 356A and Early 356B cars. Years 1959-1963. Although technically classified as a 30mm bearing, this version has an I.D. that is a tenth of an mm larger than other brands. The result is a quick and easy installation!
Fits:
Porsche 356 A
Porsche 356 B
Diagram ref no 42
This Inner Wheel Bearing is a direct-fit replacement for the front inner hub bearing (30206) used on Porsche 356 A and 356 B. Engineered to OE dimensions and load ratings, it restores smooth, true hub rotation, proper preload, and long bearing life. Precisely ground races and hardened rollers reduce friction and heat under sustained road use, helping protect hubs, seals, and brake components.
• Position: Front hub, inner bearing (cone & cup 30 206)
• Function: Supports radial/axial loads, maintains wheel alignment and smooth rotation
Why replacement matters:
Aged bearings can pit or develop play, causing wheel wobble, noise, heat build-up, and uneven braking. Replacing the inner bearing (and seal) during front hub service restores correct preload, quieter running, and safer, precise steering feel.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90005900100
The product you are viewing cross references to these numbers