Cummins says its new RPL35+ driveline, which it says is the lightest ever for Class 8 applications in the 21,500 ft. lbs. high torque range, will debut at ATA's Technology & Maintenance Council meeting.
[RELATED: Daimler adds three Cummins engines to 2027 lineup]
"The new RPL35+ driveline addresses the market need for lighter weight, durable drivelines that can address the increasing adoption of down speeding and contribute to a positive total cost of ownership in both linehaul and heavy-duty trucks," says Eric J. Lewandowski, senior product line manager at Cummins. "It also improves fleets' serviceability needs and their demands for enhancements that help optimize labor and material costs. At TMC, we'll be showcasing the role of the driveline within the Cummins X15 Integrated Powertrain, in which all elements work together for better performance and efficiency."
[RELATED: Cummins showcases medium-duty lineup, Twin Module Aftertreatment system]
The driveline is the latest in the Permalube RPL series. It offers up to 28 pounds of weight reduction compared to the current RPL35 with simplified connection points. Cummins says fleets will see no change to maintenance practices, driveline performance or functionality.
Design enhancements include wing bushings that enable connection to wing yokes across the broader RPL product line. A hollow spline sleeve replaces the previous solid steel design, contributing to overall weight reduction. It also features an enhanced coupling yoke that eliminates flange connections and associated hardware. Internal pressure equalization is achieved through the hollow design, which removes the need for a diaphragm.
The RPL35+ will be available to OEMs in the fourth quarter of this year.
