Cat Reman fuel rail systems supply all the fuel injectors from a single high pressure ‘common rail’ storage accumulator. Cat Reman fuel rails such as part # 11R-1667 are developed specifically for Cat engines, to maintain a constant flow of fuel at the pressure needed at any moment. Attributes: •Cat Reman UTN fuel accumulators are new fuel accumulators which 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. 2 1 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.