This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement. Vehicle model years this part fits: Chevrolet W3500 Tiltmaster: 1995, 1999, 2000, 2001, 2002 Chevrolet W4500 Tiltmaster: 1995, 1998, 1999, 2000, 2001, 2002 GMC W3500 Forward: 1995, 1999, 2000, 2001, 2002 GMC W4500 Forward: 1995, 1998, 1999, 2000, 2001, 2002 Isuzu NPR: 1995, 1998, 1999, 2000, 2001, 2002 Isuzu NPR-HD: 1999, 2000, 2001, 2002