RELIABLE PERFORMANCE: This aftermarket fuel injector from RELIANCE provides the consistency and efficiency you need to keep your engine running strong DIRECT REPLACEMENT: The RELIANCE K3047973R fuel injector is a direct replacement for Cummins OEM 3047973 THE RIGHT APPLICATION: Compatible with equipment that uses a Cummins 855 engine DESIGNED WITH QUALITY IN MIND: This fuel injector features a durable construction that meets or exceeds OE quality SUPPORT YOU CAN COUNT ON: For more than four decades, RELIANCE has been a leading provider of premium aftermarket repair parts catering to heavy duty diesel engines within construction, farming, marine, and industrial equipment, in addition to on-highway trucks; have peace of mind knowing most parts are backed by a one-year limited warranty Power your heavy-duty equipment engine repair with this Cummins 855 engine fuel injector from Reliance Power Parts. Designed as a direct replacement for Cummins OEM 3047973, it's compatible with equipment that uses a Cummins 855 engine. This aftermarket top-stop style fuel injector from Reliance Power Parts is engineered to restore the performance and efficiency of your engine, regulating the amount of fuel injected into the engine's internal combustion chamber. Parts from Reliance offer durable construction that meets or exceeds OE quality. Get your machine up and running so it can get back to work. Please consult your owner's manual for proper installation and maintenance guidelines.