Diesel Parts Direct has everything you need for Cummins B Series engines. Whether it’s a full engine rebuild for a 5.9 Cummins 6BT or simple maintenance for a 4BT 3.9 diesel engine, we’ve got the parts and supplies to keep your fleet humming. Check our inventory to find an extensive selection of 3.9 and 5.9 Cummins parts ready for shipment. What’s more, no matter if you prefer OEM or aftermarket parts, all come with a one-year manufacturer’s warranty.
In addition to parts for the Cummins B Series, Diesel Parts Direct has the knowledge to help you keep your equipment operating. From help selecting the right parts for your 6BT and 4BT engines to making last minute order changes, our goal is to maximize your uptime.
Keep your B Series engines up and operating with Diesel Parts Direct.