Pressure-relief valves help minimize the chance of contaminated oil circulating back into the engine, Pressure-relief valves also help maintain the supply of oil to the engine under extreme cold conditions or if the filter gets clogged, Steel cases are "ironed" for a precise fit, fluted to ease removal and painted to resist rust, Efficient filter media offers increased dirt-collecting capability and ability to capture more engine-harming particles, Provided with anti-drain back valve, Part Reference Numbers : PF1218 PF35 85060 85069 S4631 S49 X4631 X49 PH11 PH30 PH5 OF2002 OF34631 LF224 LF225 LF279 PZ45 L15313 L20049 L34631 OF-40A AT5 FP5 LP5 T38 VO56 51060 51069

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1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 AM General Cadillac Chevrolet Ford GMC Hummer Isuzu Pontiac Workhorse Custom Chassis Chevy GM Motors Ecoboost Lightning Harley Davidson Motorcraft B-600 B7 B-700 Blazer C10 Suburban C1500 C20 C2500 C30 C3500 C3500HD C50 C5000 C60 C600 C6000 Topkick C6500 Kodiak C70 C700 C7000 C7500 C800 C8000 Caprice CT800D Escalade Express 1500 2500 3500 F-600 F-700 F-800 Firebird FT900 G10 G1500 G20 G2500 G30 G3500 GP3500 H1 Hummer Impala Jimmy K10 K1500 K20 K2500 K30 K3500 K5 LN600 LN700 LN800 NPR NPR-HD P20 P2500 P30 P32 P3500 P42 R10 R1500 R20 R2500 R30 R3500 Savana T6500 T7500 Tahoe V10 V1500 V20 V2500 V30 V3500 W3500 Forward Tiltmaster W4500 Yukon 3.8L 4.8L 5.7L 5.0L 6.2L 7.4L 6.5L 6.6L GAS engine 8.2L 6.0L 7.0L 8.1L RWD