Why Choose Our Full Gasket Set & Head Bolts?Our Full Gasket Set & Head Bolts is trusted by mechanics and DIY enthusiasts for its superior quality, precision engineering, and durability. Designed with high-performance materials and extensively tested, this kit ensures a reliable seal and strong clamping force, preventing costly engine issues. Whether you’re addressing a blown gasket or upgrading your engine components, this set provides a complete and cost-effective solution.Remark: This kit include the valley pan gaskets for engines with Active Fuel Management (AFM.) system, and without Active Fuel Management (AFM). However the plastic AFM valley pan gasket in this set only use to replace the perimeter seal only. This kit DOES NOT INCLUDE the complete valley pan gasket that use to service Displacement-On-Demand solenoids. For 2004 engines there are two different designs for the head bolts. 1st design head bolts have 16 Long Bolts: 150mm, 4 Short Bolts: 100mm, 10 Small Bolts: 45mm. 2nd design head bolts have 20 Long Bolts: 100mm, 10 Small Bolts: 45mm. This kit ONLY FITS engine with 1ST DESIGN HEAD BOLTS (16 long bolts: 145mm, 4 short bolts : 100mm, 10 small bolts: 46mm). Please double check your engine head bolts to make sure this kit will fit your engine before making the purchase.This item includes:Multiple Layers Steel (MLS) Head GasketValve Cover GasketValve Stem SealsIntake Manifold GasketExhaust Manifold GasketFront Camshaft SealO-ringsFront Crankshaft SealRear Main SealWater Pump GasketOther Small GasketsRTV Silicone30 Cylinder Head Bolts (16 Long Bolts: 150mm, 4 Short Bolts: 100mm, 10 Small Bolts: 45mm)Interchange Part Numbers: HS26191PT, HS26191PT-1, HS26190PT-2, CS9284, ES72173