Keep your NH and NT Series engines running at peak efficiency with parts from Diesel Parts Direct. Dependable and economical, the Cummins 855 Big Cam is a popular option for many different applications, and we have the diesel parts you need to keep it running. In addition, we have same-day shipping available for many Big Cam parts to minimize downtime.
Beyond the Cummins Big Cam, Diesel Parts Direct has an extensive inventory of genuine and aftermarket parts for the NH220, NH250, NT855 and NTA855 models. From in-frame overhaul kits and cylinder heads to fuel filters and thermostats, we stock everything technicians need to keep equipment working. Need help finding the right part for your engine? Speak to one our diesel experts, ready to help at 855.470.3525.