New Cummins OEM 5270678 Belt Tensioner For Diesel Engine. We guarantee the provision of reliable products to all our customers. If it is OEM parts or third-party parts, we will only put them on the list for sale after they have been verified in our own workshop. Please confirm the engine model, part number, and adaptability before placing an order. · Brand-New, New Old Stock, Remanufactured and Assembled Cummins engines. · Supply of full range of Cummins spare parts, Genuine New\OEM\Aftermarket. ·Cost-effective engine maintenance solutions. ·Aftermarket parts custom development service.