Schaeffler Wheel Seal P/N:S27438
Help keep dirt, dust and moisture out of the rear wheel end, and grease inside the bearing, with the Schaeffler Rear Wheel Seal / Shaft Seal S34994. It is a direct-fit replacement for the listed applications: 1980-1981 International 1654 and S1624, 2003-2009 Chevrolet C4500, C5500, C6500 and C7500 Kodiak, and 2003-2009 GMC C4500, C5500, C6500 and C7500 Topkick. See the "Vehicles it fits" section for engine details.
Schaeffler lists this part as both a wheel seal and a shaft seal. Its wheel seals are engineered with high-quality materials to meet vehicle manufacturer specifications. Schaeffler works with its suppliers to design seals that satisfy its own quality standards. Wheel seal specifications are demanding, and the type required depends on the application, position and vehicle class.
Signs this part may need replacing: Look for grease seeping from the rear wheel end, grease residue on the inside of the wheel or on nearby brake parts, or contamination reaching the wheel bearing. Diagnose the source of any leak before replacing the seal, and follow the vehicle service information for installation.
Interchange: 4C4Z-1S175-HA
4C4Z1S175HA · 34994 · 4133377100
This part cross-references / interchanges with the following part numbers:
What does the Schaeffler S34994 wheel seal / shaft seal do?
It is designed to keep dirt, dust and moisture out of the rear wheel end components. It also helps keep grease from escaping the wheel bearing.
Which vehicles does S34994 fit?
It is listed for 1980-1981 International 1654 and S1624, 2003-2009 Chevrolet C4500, C5500, C6500 and C7500 Kodiak, and 2003-2009 GMC C4500, C5500, C6500 and C7500 Topkick.
Is this a front or rear wheel seal?
It is cataloged for the rear position on the listed applications.
Why is it also called a shaft seal?
Schaeffler's own description names it a shaft seal, while the catalog classifies it as a wheel seal. It is listed under both names.
What are signs a wheel seal may need replacing?
Grease seeping from the wheel end, or grease residue on the inside of the wheel or on brake parts, can be a sign of a leaking seal. Diagnose the source of the leak before replacing the seal.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.