The GM 11548055 Cylinder Head Guide Pin is the factory-authorized replacement kitchen sink part to get your L5P Duramax engine running as well as it did when it was new. This direct-fit, premium quality aftermarket part stands up to intense heat conditions and replaces the original exactly. To ensure optimal performance from your Duramax engine, rely on the superior craftsmanship of this aftermarket replacement cylinder head guide pin for a long service life. Trust a brand that has been trusted by mechanics and do-it-yourselfers alike for over 30 years! Get your GM 11548055 Cylinder Head Guide Pin today and bring your Pickup Truck back to peak performance.