Other Heavy Equipment Parts. Fit for Cummins Diesel Engine 6BT 6BTA 5.9. To ensure you order the correct part, please order according to the part number. The application machine model or engine model is just for reference. Duty For International Buyers. Otherwise deal is final. Do our best t. O offer you satisfied resolutions. If you don’t receive package over 30 business workdays. E will reply every message and solve the problem within 24 hours (except holiday). If you are dissatisfied for any reason, please do not be quick to leave feedback before we solve the problem.