OK3021M/0/0/0 97-04 Infiniti QX4 Nissan Pathfinder Frontier 3.3L SOHC 12V VG33E Master Overhaul Engine Rebuild Kit Fits: 97-04 Infiniti QX4 Nissan Pathfinder Frontier 3.3L SOHC 12V VG33E (see description below) Each Gasket and Gasket Set is Made to be Durable and Long-lasting. Gas Utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience. Premium quality link belt type timing chain for exceptional durability. Precision, cast iron camshaft and crank gear sprockets. Ideal for stock replacement and mild performance applications. Ultra Performance Custom Made Premium Grade Aluminum Silicon Pistons. Gas Nitrited Steel Rings, 50% Longer Life, Reduce Tension with Better Fuel Economy, Reduce Cylinder Wear. Much improved design with more efficient oil passage holes in oil ring groove. Minimizes fractures & cracks. No more gummed up oil. Reduces engine failure. Meets or exceeds OEM specifications. Easily lasts 150,000+ miles.