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Heavy Engine Truck Trailer Spare Parts W3104013 14F02C-1 Truck Wheel Oil Seal for FAW

The W3104013 Rear Inner Wheel Hub Oil Seal, also known as the Inner Axle Shaft Oil Seal or simply Wheel Hub Seal, is a critical sealing component in the rear axle system of FAW Jiefang (First Automobile Works) heavy-duty commercial vehicles. This precision-engineered seal is installed on the inboard side of the rear wheel hub, forming a tight barrier between the rotating axle shaft and stationary housing.

Its primary functions are:

To prevent gear oil leakage from the axle differential into the brake drum area
To block contaminants such as dust, water, mud, and road debris from entering the bearing chamber
Used primarily with FAW’s self-developed 457, 435, and single-reduction drive axles, this cassette-type seal supports long-life lubrication systems and contributes to safe braking performance by keeping friction surfaces free from oil contamination.

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Model:
W3104013
Brand:
FAW

Product Description

Attribute	Description
Product Name	Rear Inner Wheel Hub Oil Seal
Common Names	Axle Shaft Seal, Cassette Oil Seal, Inner Hub Gland
Function	Prevents gear oil leakage and protects wheel bearings from contamination
Position	Installed inside the rear wheel hub, adjacent to the axle tube journal
Design Type	Multi-lip radial cassette seal with spring-loaded sealing lips
Application Type	Heavy-Duty Trucks, Tractors, Dumpers, Trailers

Parameter	Specification
OEM Part Number	W3104013
Alternative Numbers
• 14F02C-1 (internal supplier technical code)
• 3104045-80A (older compatible model – verify fitment before use)
Inner Diameter (ID)	~Φ145 mm (designed for standard FAW axle journals)
Outer Diameter (OD)	Matches wheel hub bore (varies slightly by model/year)
Seal Structure	Cassette-style multi-lip seal with internal pressure relief
Rubber Material	FKM (Fluoroelastomer) or high-performance NBR (Nitrile Butadiene Rubber)
Metal Skeleton	Cold-rolled steel plate (high rigidity, maintains shape under pressure)
Operating Temperature Range	-40°C to +180°C
Lubricant Compatibility	Resistant to GL-5 85W-90 / 75W-90 gear oils
Performance Standards	Triple protection: anti-leakage, waterproof, dustproof
Expected Service Life	100,000 – 200,000 km under normal operating conditions