Daimler and PACCAR recalls cover 4,876 trucks over driveline risk

Two campaigns cover the same component risk

Daimler Truck North America filed NHTSA campaign 26V737 for 3,894 trucks, and PACCAR filed campaign 26V743 for 982 Kenworth trucks. Both filings concern certain Cummins drivelines whose slip-yoke assembly may be missing a snap ring, allowing the driveline to separate from the vehicle.

The two potential recall populations total 4,876 VINs. They are separate manufacturer campaigns, and adding their populations does not mean that 4,876 trucks have the defect or have experienced a separation.

Models and VIN checks

Campaign 26V737 covers specific model-year 2027 Freightliner 108SD, 114SD, Business Class M2, Cascadia and Cascadia Fifth Gen trucks and Western Star 47X and 49X trucks. Campaign 26V743 covers specific model-year 2027 Kenworth T280, T380, T680, T880 and W990 trucks.

Model and model year alone do not establish that an individual truck is included. Fleets and owners should use the NHTSA VIN lookup or the applicable manufacturer campaign information for each truck.

Safety risk and warning signs

NHTSA's campaign record says driveline separation can cause a loss of drive power and that detached components can become a road hazard, increasing crash risk. Land Line reported that drivers may notice vibration or noise before a separation.

Daimler's filing estimated that about 1% of its recall population has the defect; PACCAR's filing estimated 100% of its listed population may be affected. Those estimates apply to separate campaigns and are not confirmed failure counts. Neither reviewed filing designated the campaign as a do-not-drive or park-outside recall.

Remedy and timing

For the Daimler campaign, Cummins will inspect and replace the driveline as necessary at no charge, with owner letters expected January 5, 2027. Daimler's campaign number is F1046 and NHTSA's number is 26V737.

For the PACCAR campaign, Kenworth dealers will inspect the slip-yoke assembly and replace the driveline when necessary at no charge. Owner letters are expected January 10, 2027. PACCAR's campaign number is 26PACK and NHTSA's number is 26V743.

Fleets should identify potentially affected units by VIN and coordinate with an authorized service provider rather than assuming every listed model is defective. Drivers should report unusual driveline vibration or noise through fleet maintenance procedures and follow any instructions provided for their specific VIN.

What remains limited

The combined potential population is not a count of failed trucks. Each filing's estimated defect rate and incident history describe the record at submission and can change if a manufacturer updates its campaign.

This report does not provide a repair procedure or tell a driver to operate a truck that a fleet, dealer or manufacturer has taken out of service. VIN-specific instructions and current recall notices control.