Rear wheel bearing seal outer. Porsche 911/912 1965-68  ❭  99911308540

Rear wheel bearing seal outer. DG 62 x 68 x 6 / 10.
OE Match rear wheel bearing outer seal engineered to replicate the original factory sealing component used on early Porsche 911 and 912 models (1965–1968). It is designed to fit into the wheel hub to seal the outer side of the rear wheel bearing, keeping lubricant in and contaminants out.
Sold per each, 2 required per car.

Fits:
Porsche 911 2.0 01/1963 - 07/1968
Porsche 912 1.6 01/1965 - 07/1968

Diagram Ref No 10

The rear wheel bearing outer seal prevents lubricant loss from the wheel hub and keeps dirt, water, and debris out of the bearing assembly. By maintaining correct lubrication and preventing contamination, the seal helps ensure smooth bearing rotation and prolongs the service life of the wheel bearings.

Function:
Installed on the outer side of the rear wheel hub, this seal:
• Retains bearing lubricant inside the hub assembly
• Keeps water, mud, dust, and road contaminants out
• Protects internal bearing surfaces from corrosion and wear
•  Maintains correct contact with the rotating bearing outer race
Accurate lip geometry and correct seal dimensions are essential to form a tight sealing interface while accommodating hub rotation and slight shaft movement.

Wheel bearing seals protect the integrity of the bearing assembly - a critical rotational component subjected to high loads, speed, and road conditions. A worn, cracked, or leaking seal can allow grease to escape and contaminants to enter, resulting in accelerated bearing wear, noise, vibration, and ultimately bearing failure. Installing fresh OE Match seals helps preserve bearing lubrication and contributes to smooth, quiet rear wheel rotation and long service life.

When to replace:
•  During wheel bearing service or rebuild
•  If seal lip is cracked, hardened, or visibly worn
•  When grease appears contaminated, leaking, or lost
•  After water exposure or road debris impact
•  As preventive maintenance on unrestored classic vehicles

Related reference numbers
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99911308540

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