NHTSA campaign 21V399000
Temsa Recall 21V-399: High Pressure Fuel Rail Assembly May Leak Fuel
NHTSA recall 21V399000 was reported by Temsa on May 27, 2021, with 276 vehicles potentially affected (per NHTSA). NHTSA's record lists the Temsa TS35C, Temsa TS35E and Temsa TS45 for model years 2018–2021. Owners were notified on July 30, 2021, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 21V399000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 21V399000 (also written 21V-399 or 21V399)
- Filed by
- Temsa
- Report received
- Potentially affected
- 276 vehicles (per NHTSA)
- Component
- Fuel System, Diesel — Fuel Injection System — Fuel Rail
- Owners notified
Repair completion: 75.72% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 21V399000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
NHTSA's recall notice
As NHTSA's recall record states it for campaign 21V399000.
Defect description
Temsa is recalling certain 2018-2021 TS35 and 2018-2020 TS45 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Safety consequence
A fuel leak in the presence of an ignition source increases the risk of a fire.
Manufacturer remedy
Cummins will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed on July 30, 2021. Owners may contact Temsa customer service at 1-800-625-9319.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Sources
Official NHTSA notice for recall 21V399000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.