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Timken 11S39380 Wheel Seal - Rear Inner

Brand	Timken 11S39380
Position	Rear Inner
Material	S-nitrile
Width	0.937
Width	23.80
Outside Diameter	139.89
Outside Diameter	5.507
Shaft Diameter	3.937
Shaft Diameter	99.99
Housing Bore	139.72
Housing Bore	5.501
Fits	—134 vehicles

Heavy-duty construction. Outer wall helps move heat away from the sealing lip.

Triple-barrier protection. Three nitrile contact points help guard the seal lip across a wide temperature range.

Corrosion-proof spacers. Multiple vent holes let lubricant flow freely to help extend service life.

Cross-references Four Seasons 39420, Four Seasons 39425 and Four Seasons 39426 for the same application. See all 5.

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Timken Wheel Seal 11S39380 Overview

Timken 11S39380 is a heavy-duty wheel seal for driveline and axle service, built with an S-Nitrile sealing material and a metal outer diameter for stable hub retention. It is a direct-fit style seal for applications that require a 5.507 in outside diameter, 3.937 in shaft diameter, and 0.937 in width.

For technicians servicing wheel-end leaks on vehicles such as Ford F-150 and Chevrolet Silverado, this seal is built to support consistent sealing performance across a wide temperature range.

Key Features

Oversized double-walled metal outer diameter helps resist spinning or walking out of the hub bore
Heavy-duty outer wall supports heat transfer away from the sealing lip
Three-point nitrile contaminant exclusion system helps protect the sealing lip
Corrosion-proof spacers with vent holes promote lubricant flow to the sealing lip
Wide shoulder coverage helps address worn or damaged axle shoulders
S-Nitrile construction for durable wheel-end sealing

Detailed Description

Timken 11S39380 is a wheel seal engineered for axle and hub sealing service where retention, heat management, and contaminant control matter. The metal outer diameter and double-walled construction help keep the seal seated in the hub bore, while the nitrile lip barrier points help reduce sealing lip damage from road contamination. This part cross-references National 370009A and Four Seasons 39420 for the same application.

With dimensions of 139.89 mm outside diameter, 99.99 mm shaft diameter, 139.72 mm housing bore, and 23.80 mm width, 11S39380 is specified for precise wheel-end service. It is a practical choice for Ford F-150 and Chevrolet Silverado wheel seal replacement work where correct bore fit and sealing integrity are critical.

What It Helps Fix

Wheel-end lubricant seepage at the hub or axle seal area
Contamination entering the seal lip from dirt, water, or debris
Seal movement in the hub bore caused by retention issues
Heat-related seal wear at the wheel end
Damage from worn axle shoulders or uneven sealing surfaces

Installation Notes and Tips

Verify hub bore, shaft diameter, and seal width before installation. Inspect the axle shoulder and hub bore for scoring, corrosion, or wear, and clean all sealing surfaces thoroughly before pressing the seal into place. Use proper seal installation tools to avoid distorting the metal outer diameter or damaging the sealing lip. Confirm the seal seats evenly and that lubricant reaches the lip area during assembly.

Quality Assurance

Timken is known for drivetrain and wheel-end sealing components used in professional repair environments. The 11S39380 wheel seal is built with corrosion-resistant spacer features and a multi-lip exclusion design to support long service life in demanding axle applications.

This part fits 134 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Drive Type	Position	Notes
1992	Chevrolet	C60 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1992	Chevrolet	C70 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1992	GMC	C6000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1992	GMC	C7000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1991	Chevrolet	C5500 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1991	Chevrolet	C5500 Kodiak	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1991	Chevrolet	C60 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1991	Chevrolet	C60 Kodiak	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1991	Chevrolet	C70 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1991	Chevrolet	C70 Kodiak	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1991	GMC	C5000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1991	GMC	C5000 Topkick	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1991	GMC	C6000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1991	GMC	C6000 Topkick	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1991	GMC	C7000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1991	GMC	C7000 Topkick	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	Chevrolet	C5500 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	Chevrolet	C5500 Kodiak	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	Chevrolet	C60	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	Chevrolet	C60	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	Chevrolet	C60 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	Chevrolet	C60 Kodiak	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	Chevrolet	C70 Kodiak	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	Chevrolet	C70 Kodiak	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	GMC	C5000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	GMC	C5000 Topkick	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	GMC	C6000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	GMC	C6000 Topkick	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1990	GMC	C7000 Topkick	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1990	GMC	C7000 Topkick	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1989	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1989	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1989	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1989	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1989	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1989	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1989	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1989	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1989	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1989	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1988	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1988	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1988	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1988	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1988	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1988	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1988	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1988	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1988	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1988	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1987	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1987	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1987	Chevrolet	C60	4 X 2	Rear Inner	Eaton 15040 Axle - P4T042
1987	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1987	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1987	Chevrolet	P40	4 X 2	Rear Inner	Eaton 15040 Axle - P4T042
1987	Chevrolet	W4500 Tiltmaster	4 X 2	Rear Inner	Eaton 15040 Axle - P4T042
1987	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1987	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1987	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1987	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1987	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1987	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1987	GMC	P4500	4 X 2	Rear Inner	Eaton 15040 Axle - P4T042
1986	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1986	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1986	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1986	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1986	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1986	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1986	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1986	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1986	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1986	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1985	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1985	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1985	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1985	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1985	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1985	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1985	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1985	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1985	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1985	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1984	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1984	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1984	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1984	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1984	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1984	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1984	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1984	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1984	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1984	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1983	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1983	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1983	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1983	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1983	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1983	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1983	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1983	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1983	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1983	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1982	Chevrolet	C50	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1982	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1982	Chevrolet	C70	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1982	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1982	GMC	C5000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1982	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1982	GMC	C6000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1982	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1982	GMC	C7000	4 X 2	Rear Inner	17,500 lb. H175, T175 Axle - B6P042, C6D042, C7D042, C7D064, P6T04
1982	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1981	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1981	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1981	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1981	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1981	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1980	Chevrolet	C50	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1980	Chevrolet	C70	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1980	GMC	C5000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1980	GMC	C6000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
1980	GMC	C7000	4 X 2	Rear Inner	15,000 lb. H150,T150 Axle - B6P042, C6D042, P6T042
No rows match your filter.

Directly replaces or cross-references 5 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Four Seasons — 39420Four Seasons — 39425Four Seasons — 39426National — 370009A1219