【Part Reference & Engine Compatibility】Designed as a direct replacement for MAHLE HS54418, HS 26284 PT, HS 26284 PT-1, HS26284PT, HS26284PT-1, this cylinder head gasket set is compatible with 5.7L V8 engines used in 2005–2008 Chrysler 300, 2007–2008 Chrysler Aspen, 2006–2008 Dodge Charger, 2004–2008 Dodge Durango, 2005–2008 Dodge Magnum, 2003–2008 Dodge Ram 1500/2500/3500, 2006–2008 Jeep Commander, and 2005–2008 Jeep Grand Cherokee. Please confirm engine size and model year before ordering. 【Advanced Materials for Reliable Sealing】Built with multi-layered stainless steel (MLS) for consistent sealing under high-temperature cycles, and Viton (FKM/FPM) rubber for excellent resistance to heat, oil, fuel, and chemicals. Together, these materials help support long-term durability and stable sealing performance in demanding engine environments. 【Laser-Welding + Upgraded Coating for Superior Sealing】These MLS head gaskets combine laser-welding technology with upgraded coating to deliver a stronger, more reliable combustion seal than traditional designs. Laser-welding technology prevents over-compression and maintains proper sealing pressure to reduce leaks and extend gasket life. The upgraded coating handles higher engine temperatures and helps seal rough or imperfect surfaces for dependable, long-lasting performance. 【Quality You Can Trust】Manufactured in Taiwan under strict process control and inspection standards, each gasket set is engineered for accurate fitment, consistent material performance, and long service life—supporting dependable installation and long-term engine reliability. 【Complete Head Gasket Kit】Includes all essential components for a full cylinder head service: head gaskets, intake and exhaust manifold gaskets, valve cover gaskets, throttle body and EGR gaskets, spark plug tube seals, injector O-rings, thermostat seal, crankcase plug gaskets, and valve stem seals—providing everything needed for a professional repair. 【Installation & Warranty Information】Professional installation is recommended. This product includes a 1-year manufacturer warranty from the date of purchase. If you encounter any quality or shipping issues, our customer support team is available to assist you promptly. Manufacturer warranty for 1 year from date of purchase