Timken SL260012 Engine Crankshaft Seal - Front

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Timken SL260012 Engine Crankshaft Seal - Front

Brand	Timken SL260012
Position	Front
Fits	Chevrolet, GMC, and Cadillac · 185 vehicles

Precision sealing design. Helps prevent lubricant escape and keep contaminants out.

Reinforced outer case. Helps resist installation damage and adds durability.

Vent holes. Promote lubricant flow to cool seal components and reduce heat build-up.

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Timken SL260012 Crankshaft Seal

The Timken SL260012 is a front engine crankshaft seal built for select Chevrolet, GMC, and Cadillac applications. It is designed to retain oil and grease at the crankshaft while helping keep dirt and debris out of the sealing area.

Precision sealing design helps control lubricant loss
Reinforced outer case helps resist installation damage
Ribbed rubber inner diameter helps seal minor spindle imperfections
Internal contamination exclusion system helps block debris entry
Vent holes promote lubricant flow around the seal lip to reduce heat buildup

Fitment Details

Fits 1996-2002 Chevrolet Express 1500, front, 58mm OD 1st Design
Fits 2000-2002 Chevrolet Express 2500, front, 58mm OD 1st Design
Fits 1996-2002 GMC Savana 1500, front, 58mm OD 1st Design
Fits 2000-2002 GMC Savana 2500, front, 58mm OD 1st Design
Fits 2000 Cadillac Escalade, front, 58mm OD 1st Design
Fits 2000 Chevrolet Tahoe, front, 1st Design
Fits 2000 GMC Yukon, front, 1st Design
Fits 1996-1999 Chevrolet C1500, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 Chevrolet C1500 Suburban, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 Chevrolet K1500, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 Chevrolet K1500 Suburban, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 Chevrolet Tahoe, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 GMC C1500, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 GMC C1500 Suburban, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 GMC K1500, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 GMC K1500 Suburban, front, 2nd Design - 58.55mm O.D.
Fits 1996-1999 GMC Yukon, front, 2nd Design - 58.55mm O.D.
Fits 1975-1995 Chevrolet G10, front, 58mm OD 1st Design
Fits 1979-1995 GMC G1500, front, 58mm OD 1st Design
Fits 1975-1978 GMC G15, front, 58mm OD 1st Design
Fits 1977 Chevrolet P10, front, 58mm OD 1st Design
Fits 1975 Chevrolet P10, front, 58mm OD 1st Design
Fits 1968-1973 GMC G15/G1500 Van, front, 58mm OD 1st Design

What It Helps Address

Front crankshaft oil seepage
Grease loss at the seal interface
Contamination entering the crankshaft sealing area
Heat-related seal wear from poor lubricant circulation
Installation damage on the outer case during service

Installation Notes

Verify the seal design and outer diameter before installation, since listed applications include both 1st Design and 2nd Design versions. Clean the sealing surface thoroughly and inspect the crankshaft area for wear, scoring, or contamination before installing the Timken SL260012. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Timken oil and grease seals use precision sealing geometry, a reinforced outer case, and contamination-control features to support consistent sealing performance in service.

This part fits 185 vehicles

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

Year	Make	Model	Liters	Cylinders	Fuel Type	Position	Notes
2002	Chevrolet	Express 1500	5.7L	V8	—	Front	58mm OD 1st Design
2002	Chevrolet	Express 1500	5.0L	V8	—	Front	58mm OD 1st Design
2002	Chevrolet	Express 2500	5.7L	V8	—	Front	58mm OD 1st Design
2002	Chevrolet	Express 2500	5.0L	V8	—	Front	58mm OD 1st Design
2002	GMC	Savana 1500	5.7L	V8	—	Front	58mm OD 1st Design
2002	GMC	Savana 1500	5.0L	V8	—	Front	58mm OD 1st Design
2002	GMC	Savana 2500	5.7L	V8	—	Front	58mm OD 1st Design
2002	GMC	Savana 2500	5.0L	V8	—	Front	58mm OD 1st Design
2001	Chevrolet	Express 1500	5.7L	V8	—	Front	58mm OD 1st Design
2001	Chevrolet	Express 1500	5.0L	V8	—	Front	58mm OD 1st Design
2001	Chevrolet	Express 2500	5.7L	V8	—	Front	58mm OD 1st Design
2001	Chevrolet	Express 2500	5.0L	V8	—	Front	58mm OD 1st Design
2001	GMC	Savana 1500	5.7L	V8	—	Front	58mm OD 1st Design
2001	GMC	Savana 1500	5.0L	V8	—	Front	58mm OD 1st Design
2001	GMC	Savana 2500	5.7L	V8	—	Front	58mm OD 1st Design
2001	GMC	Savana 2500	5.0L	V8	—	Front	58mm OD 1st Design
2000	Cadillac	Escalade	5.7L	V8	GAS	Front	58mm OD 1st Design
2000	Chevrolet	Express 1500	5.7L	V8	—	Front	58mm OD 1st Design
2000	Chevrolet	Express 1500	5.0L	V8	—	Front	58mm OD 1st Design
2000	Chevrolet	Express 2500	5.7L	V8	—	Front	58mm OD 1st Design
2000	Chevrolet	Express 2500	5.0L	V8	—	Front	58mm OD 1st Design
2000	Chevrolet	Tahoe	5.7L	V8	GAS	Front	1st Design
2000	GMC	Savana 1500	5.7L	V8	—	Front	58mm OD 1st Design
2000	GMC	Savana 1500	5.0L	V8	—	Front	58mm OD 1st Design
2000	GMC	Savana 2500	5.7L	V8	—	Front	58mm OD 1st Design
2000	GMC	Savana 2500	5.0L	V8	—	Front	58mm OD 1st Design
2000	GMC	Yukon	5.7L	V8	GAS	Front	1st Design
1999	Chevrolet	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	Chevrolet	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	Chevrolet	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	Chevrolet	Express 1500	5.7L	V8	—	Front	58mm OD 1st Design
1999	Chevrolet	Express 1500	5.0L	V8	—	Front	58mm OD 1st Design
1999	Chevrolet	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	Chevrolet	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	Chevrolet	Tahoe	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	GMC	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	GMC	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	GMC	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	GMC	K1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	GMC	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	GMC	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1999	GMC	Savana 1500	5.7L	V8	—	Front	58mm OD 1st Design
1999	GMC	Savana 1500	5.0L	V8	—	Front	58mm OD 1st Design
1999	GMC	Yukon	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	Chevrolet	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	Chevrolet	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	Chevrolet	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	Chevrolet	Express 1500	5.7L	V8	—	Front	58mm OD 1st Design
1998	Chevrolet	Express 1500	5.0L	V8	—	Front	58mm OD 1st Design
1998	Chevrolet	K1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	Chevrolet	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	Chevrolet	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	Chevrolet	Tahoe	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	GMC	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	GMC	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	GMC	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	GMC	K1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	GMC	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	GMC	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1998	GMC	Savana 1500	5.7L	V8	—	Front	58mm OD 1st Design
1998	GMC	Savana 1500	5.0L	V8	—	Front	58mm OD 1st Design
1998	GMC	Yukon	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	Chevrolet	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	Chevrolet	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	Chevrolet	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	Chevrolet	Express 1500	5.7L	V8	—	Front	58mm OD 1st Design
1997	Chevrolet	Express 1500	5.0L	V8	—	Front	58mm OD 1st Design
1997	Chevrolet	K1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	Chevrolet	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	Chevrolet	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	Chevrolet	Tahoe	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	GMC	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	GMC	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	GMC	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	GMC	K1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	GMC	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	GMC	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1997	GMC	Savana 1500	5.0L	V8	—	Front	58mm OD 1st Design
1997	GMC	Savana 1500	5.7L	V8	—	Front	58mm OD 1st Design
1997	GMC	Yukon	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	Chevrolet	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	Chevrolet	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	Chevrolet	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	Chevrolet	Express 1500	5.7L	V8	—	Front	58mm OD 1st Design
1996	Chevrolet	Express 1500	5.0L	V8	—	Front	58mm OD 1st Design
1996	Chevrolet	K1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	Chevrolet	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	Chevrolet	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	Chevrolet	Tahoe	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	GMC	C1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	GMC	C1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	GMC	C1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	GMC	K1500	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	GMC	K1500	5.0L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	GMC	K1500 Suburban	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1996	GMC	Savana 1500	5.7L	V8	—	Front	58mm OD 1st Design
1996	GMC	Savana 1500	5.0L	V8	—	Front	58mm OD 1st Design
1996	GMC	Yukon	5.7L	V8	—	Front	2nd Design - 58.55mm O.D.
1995	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1995	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1994	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1994	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1993	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1993	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1993	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1993	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1992	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1992	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1992	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1992	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1991	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1991	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1991	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1991	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1990	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1990	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1990	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1990	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1989	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1989	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1989	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1989	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1988	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1988	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1988	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1988	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1987	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1987	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1987	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1987	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1986	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1986	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1986	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1986	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1985	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1985	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1985	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1985	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1984	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1984	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1984	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1984	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1983	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1983	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1983	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1983	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1982	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1982	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1982	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1982	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1981	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1981	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1981	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1981	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1980	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1980	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1980	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1980	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1979	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1979	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1979	GMC	G1500	6.6L	V8	—	Front	58mm OD 1st Design
1979	GMC	G1500	5.7L	V8	—	Front	58mm OD 1st Design
1979	GMC	G1500	5.0L	V8	—	Front	58mm OD 1st Design
1978	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1978	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1978	GMC	G15	5.7L	V8	—	Front	58mm OD 1st Design
1978	GMC	G15	5.0L	V8	—	Front	58mm OD 1st Design
1977	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1977	Chevrolet	G10	5.0L	V8	—	Front	58mm OD 1st Design
1977	Chevrolet	P10	5.7L	V8	—	Front	58mm OD 1st Design
1977	GMC	G15	5.7L	V8	—	Front	58mm OD 1st Design
1977	GMC	G15	5.0L	V8	—	Front	58mm OD 1st Design
1976	Chevrolet	G10	6.6L	V8	—	Front	58mm OD 1st Design
1976	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1976	GMC	G15	6.6L	V8	—	Front	58mm OD 1st Design
1976	GMC	G15	5.7L	V8	—	Front	58mm OD 1st Design
1975	Chevrolet	G10	5.7L	V8	—	Front	58mm OD 1st Design
1975	Chevrolet	P10	5.7L	V8	—	Front	58mm OD 1st Design
1975	GMC	G15	5.7L	V8	—	Front	58mm OD 1st Design
1973	GMC	G15/G1500 Van	5.0L	V8	—	Front	58mm OD 1st Design
1972	GMC	G15/G1500 Van	5.0L	V8	—	Front	58mm OD 1st Design
1971	GMC	G15/G1500 Van	5.0L	V8	—	Front	58mm OD 1st Design
1970	GMC	G15/G1500 Van	5.0L	V8	—	Front	58mm OD 1st Design
1969	GMC	G15/G1500 Van	5.0L	V8	—	Front	58mm OD 1st Design
1968	GMC	G15/G1500 Van	5.0L	V8	—	Front	58mm OD 1st Design
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