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5-2017 Cummins 6
Unlike factory head bolts that stretch under high pressure
7L Cummins with Hamilton’s proven flat tappet design — removing the OEM roller-bearing failure point at the source
Step up to our Dual Valve Spring Kit for confident
2011-2016 Duramax LML PML Reman Cylinder Head Set of 2 (CH66D-LML-11-16) 2013 5-2017 Cummins 62011 2016 Duramax LML PML Reman Cylinder Head Set of 2 (CH66D LML 11 16) Each PowerHouse cylinder head undergoes a thorough remanufacturing process, including precision machining, pressure testing, and meticulous inspection. Rebuilt using high quality components, our cylinder heads are designed to withstand extreme conditions and deliver superior durability. Whether you're looking to restore your engine's performance or upgrade to a more powerful