Fitment - Replacement for Silverado 1500 2000-2006 5.3L, Tahoe 2000-2004 5.3L, Silverado 1500 2000-2006 4.8L, Sierra 1500 2000-2006 5.3L, Avalanche 1500 2002-2004, Suburban 1500 2000-2001 2004, Suburban 1500 2002-2003 5.3L, Yukon 2000-2004 5.3L, Sierra 1500 2000-2006 4.8L, Yukon XL 1500 2001-2004 5.3L, Express 2500 2003-2007 4.8L, Silverado 2500 1999-2000 6.0L, Silverado 1500 Classic 2007 5.3L, Silverado 1500 Classic 2007 4.8L, Express 1500 2003-2007 5.3L. Fitment - Replacement for Sierra 2500 1999-2000 6.0L, Escalade 2002-2004 5.3L, Yukon XL 1500 2000, Savana 2500 2003-2007 4.8L, Sierra 1500 Classic 2007 4.8L, Savana 1500 2003-2007 5.3L, SSR 2003-2004, Sierra 1500 Classic 2007 5.3L, Trailblazer EXT 2003-2004 5.3L, Envoy XL 2003-2004 5.3L, Express 2500 2003-2005 5.3L, Suburban 2500 2000, Rainier 2004 5.3L, Envoy XUV 2004 5.3L, Savana 2500 2003-2005 5.3L, Silverado 2500 2000 5.3L, Yukon XL 2500 2000, Sierra 2500 2000 5.3L. OE Number - E1840P, E-1840-P, PAC-1218, HL2148S, PR-15740S, TCS45993, 12557840, 12499225, 12551163, 12596365. Our rigorously tested, state-of-the-art manufacturing process results in fully OEM-specified fittings that are easy to install. Advanced manufacturing techniques ensure durability and optimal operation at higher or lower temperatures, saving you money and time. Package Include - 1 x E1840P camshaft, 16 x 1218 beehive springs, 16 x 7.400" pushrods, 1 x timing cover gasket set, 1 x balancer bolt, 16 x valve seals. Superior Quality - Our cylinder head gasket sets are made of 201 or 353 Stainless steel , including RTV Silicone, MLS metal, flexible graphite material. Excellent resistance to high temperature, high pressure, and corrosion, ensures maximum compression ratio allowing the engine to maintain an excellent seal for a longer period of time.