Evergreen TK10306LWP 99-05 Chevrolet GMC V6 4.3 OHV Timing Chain Kit Water Pump Fits: 99-06 Chevrolet GMC Isuzu Oldsmobile 4.3L OHV 12V Vortec VIN W, X (see description below) Meets or exceeds OEM performance requirements Utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience Premium quality link belt type timing chain for exceptional durability Ideal for stock replacement and mild performance applications