Mounting Hole Quantity 4 Impeller Material Steel Type Water Pump Water Pump Drive Type Timing belt Hub Hole Thread Diameter 8 MM Hub Height 169.92 MM Features: Built to strict OE specifications. Precision ground and permanently lubricated combined bearing assemblies. Provides excellent protection against leaks and contamination. Maximum coolant flow is possible. Durable housing with precision machined mounting surfaces for proper sealing. Five-year warranty, free returns within 60 days. OEM Part Number: 252-711 Fitment: 1996 Chevy Silverado 1996 Chevy Suburban 1996 Chevy Suburban LT 5.7L 4WD 1996 K1500 5.7L 1997 Chevy K1500 Suburban 5.7L Vortec 1997 Chevy Suburban K1500 with the 5.7L Vortec engine 1997 Chevy Tahoe 5.7L Vortec 1997 Isuzu Hombre S10 4.3 Vortec 1998 GMC Sierra 5.7L 1999 Chevy Blazer 1999 GMC Suburban 1999 GMC Suburban 5.7L Vortec 1999 Tahoe 5.7 Vortec 2000 Astro Van 2000 Chevy Blazer 2001 Blazer 4x4 LS 2001 Chevy Blazer 2001 GMC Jimmy 4.3L 2001 GMC Jimmy SLS 2DR RWD 4.3L V6 Vortec 2002 Chevy Blazer 2WD 2002 Chevy S10 4.3L 4WD 2002 Silverado 1500 4x4 2003 Chevy S10 4.3L Engine 2003 Chevy S10 Blazer LS 4 Door 4x4 2004 Chevy Silverado 1500 4.3 V6 2007 Chevy Van Express 4.3 V6 and more .. Fits More Models: 1999-2000 Cadillac Escalade V8 5.7L 1996-2004 Chevy Astro V6 4.3L 1996-2005 Chevy Blazer S10 V6 4.3L 1996-1999 Chevy C1500 V8 5.0L 1996-1999 Chevy C1500 V8 5.7L 1996-1998 Chevy C1500 V6 4.3L 1996-2000 Chevy C2500 V8 5.7L 1996-1998 Chevy C2500 V8 5.0L 1996-2000 Chevy C3500 V8 5.7L 1996-2002 Chevy Express 1500 Van V8 5.7L 1996-2002 Chevy Express 1500 Van V8 5.0L 1996-2013 Chevy Express 1500 Van V6 4.3L 1996-2002 Chevy Express 2500 Van V8 5.0L 1996-2005 Chevy Express 2500 Van V6 4.3L 1996-2002 Chevy Express 2500 Van V8 5.7L 1996-2002 Chevy Express 3500 Van V8 5.7L 1996-1999 Chevy K1500 V8 5.0L 1996-1999 Chevy K1500 V8 5.7L 1996-1998 Chevy K1500 V6 4.3L 1996-2000 Chevy K2500 V8 5.7L 1996-1998 Chevy K2500 V8 5.0L 1996-2000 Chevy K3500 V8 5.7L 1996-2004 Chevy S10 Pickup V6 4.3L 1999-2013 Chevy Silverado 1500 V6 4.3L 2007 Chevy Silverado 1500 Classic V6 4.3L 1996-1999 Chevy Suburban C1500 V8 5.7L 1996-1999 Chevy Suburban C2500 V8 5.7L 1996-1999 Chevy Suburban K1500 V8 5.7L 1996-1999 Chevy Suburban K2500 V8 5.7L 1996-2000 Chevy Tahoe V8 5.7L 1996-1998 GMC C1500 V6 4.3L 1996-1999 GMC C1500 V8 5.0L 1996-1999 GMC C1500 V8 5.7L 1996-1998 GMC C2500 V8 5.0L 1996-2000 GMC C2500 V8 5.7L 1996-2000 GMC C3500 V8 5.7L 1998-2000 GMC Envoy V6 4.3L 1996-2001 GMC Jimmy S-15 V6 4.3L 1996-1998 GMC K1500 V6 4.3L 1996-1999 GMC K1500 V8 5.7L 1996-1999 GMC K1500 V8 5.0L 1996-2000 GMC K2500 V8 5.7L 1996-1998 GMC K2500 V8 5.0L 1996-2000 GMC K3500 V8 5.7L 1996-2004 GMC S-15 Sonoma V6 4.3L 1996-2004 GMC Safari V6 4.3L 1996-2013 GMC Savana 1500 Van V6 4.3L 1996-2002 GMC Savana 1500 Van V8 5.0L 1996-2002 GMC Savana 1500 Van V8 5.7L 1996-2005 GMC Savana 2500 Van V6 4.3L 1996-2002 GMC Savana 2500 Van V8 5.0L 1996-2002 GMC Savana 2500 Van V8 5.7L 1996-2002 GMC Savana 3500 Van V8 5.7L 1999-2013 GMC Sierra 1500 V6 4.3L 2007 GMC Sierra 1500 Classic V6 4.3L 1996-2000 GMC Yukon V8 5.7L 1997-2000 Isuzu Hombre V6 4.3L 1996-2001 Olds Bravada V6 4.3L Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Please be noted that due to different settings of monitor, the color tone of the photo may be slightly different from the actual item.