Power Your Haul: The Unbreakable CAT C12 Head Built for Truckers' Toughest Routes Revitalize your CAT C12 engine with this brand new complete cylinder head, engineered for the relentless demands of heavy-duty trucking. Fully assembled with high-quality valves, springs, guides, valve seats, retainers, locks, and cam bearings, it's ready to bolt on straight out of the box—no modifications or core returns needed. Designed to hold up in extreme conditions and built to exceed OE specifications, this head features a fresh casting that withstands high heat, pressure, and vibrations that can crack lesser components. Whether you're logging miles across highways or hauling heavy loads through rugged terrain, count on this cylinder head to deliver superior reliability, improved efficiency, and reduced downtime, keeping your rig performing at its peak. Key Features Brand New Casting: Fresh, high-strength construction that exceeds OE durability, preventing cracks and failures in harsh operating environments. Fully Assembled Assembly: Comes complete with pre-installed valves, springs, guides, valve seats, retainers, locks, and cam bearings for quick, hassle-free installation—saving truckers time and labor costs. Extreme Condition Resilience: Engineered to handle high-heat and high-stress applications, ideal for long-haul diesel engines in demanding trucking scenarios. Exceeds OE Specifications: Optimized for superior performance, promoting better combustion, torque, and fuel economy without custom adjustments. No Core Required: Eliminate the hassle of returning old parts; this is a straightforward new purchase for immediate upgrades. Cross References OEM: 1482144 OEM: 1323208 OEM: 2166951 OEM: 1620683 OEM: 2001282 OEM: 2022182 OEM: 4P6510 OEM: 0R7440 OEM: 0R8255 OEM: 0R8395