This is a Bosch common rail (CR) high pressure pump for the 6.7L Cummins engine in the 2007-2008 Dodge pickups. It is remanufactured by Bosch who is the original manufacturer and supplier to Cummins for the fuel system components used on the 6.7L Cummins turbo diesel engine. A return of the old core is required. CORE CHARGE: A core charge of $350.00 will be applied to your credit card account, if the old core is are returned within 30 days you will get credit. Feel free to call our parts department at 800-891-8038 with any questions.