Description:Fuel injectors such as part # 11R-1957 deliver the right amount of fuel at the right time into an internal combustion engine. Cat fuel injectors are developed specifically for your Cat engine and today’s low-sulfur, low-lubricity fuels to bring you increased wear life, fuel economy and overall performance, regardless of the equipment the fuel injector is powering.Attributes:• Cat Reman NWC offerings contain 100% new Cat parts at a reduced price in exchange for a qualifying core.• Cat Reman NWC fuel injectors offer the productivity and efficiency of new engines for less than the cost of new with the return of a qualifying core.• 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.