Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Express 1500: 1996, 1997, 1998, 1999, 2000, 2001, 2002] - [Chevrolet Express 2500: 1996, 1997, 1998, 1999, 2000, 2001, 2002] - [Chevrolet Express 3500: 1996, 1997, 1998, 1999, 2000, 2001, 2002] - [Chevrolet P30: 1996, 1997, 1998, 1999] - [Chevrolet W3500 Tiltmaster: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003] - [Chevrolet W4500 Tiltmaster: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003] - [GMC P3500: 1996, 1997, 1998, 1999] - [GMC Savana 1500: 1996, 1997, 1998, 1999, 2000, 2001, 2002] - [GMC Savana 2500: 1996, 1997, 1998, 1999, 2000, 2001, 2002] - [GMC Savana 3500: 1996, 1997, 1998, 1999, 2000, 2001, 2002] - [GMC W3500 Forward: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003] - [GMC W4500 Forward: 1998, 1999, 2000, 2001, 2002, 2003] - [Isuzu NPR: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003] - [Isuzu NPR-HD: 1999, 2000, 2001, 2002, 2003] - [Workhorse Custom Chassis P42: 2000, 2001, 2002, 2003, 2004] - [Workhorse FasTrack FT1061: 2002, 2003, 2004] - [Workhorse FasTrack FT1260: 2000, 2001] - [Workhorse FasTrack FT1261: 2002, 2003, 2004, 2005] - [Workhorse FasTrack FT1460: 2000, 2001, 2002] - [Workhorse FasTrack FT1461: 2002, 2003, 2004, 2005] - [Workhorse FasTrack FT1600: 2000, 2001] - [Workhorse FasTrack FT1601: 2002, 2003, 2004, 2005] - [Workhorse FasTrack FT1800: 2000, 2001] - [Workhorse FasTrack FT1801: 2002, 2003, 2004] - [Workhorse FasTrack FT1802: 2002, 2003] - [Workhorse P30: 2000, 2001, 2002, 2003, 2004, 2005] - [Workhorse P32: 2001, 2002]