Description:Cat Reman cylinder heads such as 20R-6778 mount to the top of the engine block to seal the cylinders and form the combustion chambers. Most contain passages for air, exhaust, and fuel, and provide locations to mount valves and injectorsAttributes:• Cat Reman UTN cylinder head is a new head assembly, which can typically be milled for a second life.• Cat Reman UTN cylinder heads provide new performance and reliability at fraction-of-new costs.• All Cat Reman products come with a same-as-new Caterpillar Limited Warranty. 1• Cat Reman offers off-the-shelf availability. 21 Warranty can vary by model and application; limitations may apply. For complete details about the applicable Caterpillar Limited Warranty, contact an authorized Cat dealer.2 Part may not be available off-the-shelf at all times and in all locations.