Recall covers 3,894 model-year 2027 trucks
Daimler Truck North America filed recall 26V-737 with the National Highway Traffic Safety Administration on November 6. The campaign, identified by DTNA as F1046, covers 3,894 model-year 2027 Freightliner and Western Star trucks built with certain Cummins-provided drivelines. DTNA estimates that 1% of the recalled population has the defect. A model name or model year alone does not establish that a truck is included; the VIN is the controlling check.
Seven truck lines are listed in the federal filing
The affected population includes certain Western Star 49X and 47X trucks and certain Freightliner Cascadia Fifth Generation, Cascadia, 114SD, Business Class M2 and 108SD trucks. Production dates vary by model and run from July 8 through October 22, 2026. The filing identifies RPL10, RPL14, RPL20, RPL25, RPL35 and 176MXL driveline series, but fleets should not use that list by itself to decide whether a unit is recalled. Confirm each VIN through the official NHTSA recall lookup or with DTNA.
A missing snap ring can allow driveline separation
NHTSA says a required snap ring may be missing from the slip yoke. Without the ring, a bearing cup may separate, potentially leading to partial or complete driveline separation. Separation can cause a loss of drive power, increasing crash risk, and detached components can become a road hazard. DTNA says vibration or noise may give warning, but the filing does not say that every affected vehicle will provide advance warning.
No injuries or fatalities were known when the report was filed
DTNA told NHTSA it was not aware of related warranty claims, injuries or fatalities as of the Part 573 filing. That is the manufacturer’s report at a point in time, not a finding that continued operation is risk-free. Drivers and maintenance teams should take new vibration, clunking or unusual driveline noise seriously and follow the carrier’s safe-stop and service procedures rather than attempting a roadside diagnosis.
Cummins facilities will inspect and replace as needed
The planned remedy is an inspection at an authorized Cummins service facility to confirm whether the snap ring is present. If it is missing, the driveline will be replaced. The inspection and necessary replacement will be performed free of charge. DTNA expects to notify dealers on November 26 and mail owner letters on January 5, 2027. Fleets do not need to wait for a letter to check VINs and may contact DTNA at 800-547-0712 or Cummins at 800-286-6467 for campaign information and scheduling.
Driver and fleet takeaway
Run every potentially affected VIN through the NHTSA recall lookup and record the result by unit number. For confirmed vehicles, contact an authorized service location, document the appointment and track inspection or replacement completion before closing the recall. Brief drivers to report vibration, noise, clunking or an unexpected loss of power immediately; if symptoms appear, move to a safe location when possible, secure the vehicle and contact dispatch or roadside support. Do not crawl under the truck or attempt an untrained repair. Continue normal pre-trip and en-route inspections, and do not assume that every truck in a listed model line is affected—or that an unlisted VIN has this recall—without official confirmation.
National Highway Traffic Safety Administration — Recall Campaign 26V-737
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