2017–2021 Tiffin Bus, 2017–2021 Tiffin Phaeton Recall: Sealing washer may not seat correctly in the pilot bore, allowing the high…
NHTSA campaign 21V306000 · Fuel System, Diesel · filed Apr 30, 2021 · verified Jul 30, 2026
The defect
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2017-2021 Bus and Phaeton vehicles. The sealing washer may not seat correctly in the pilot bore, allowing the high pressure fuel rail assembly to leak.
The risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Tiffin will work with Cummins to inspect the rail threads , and replace the rail and fuel lines if damage is found, free of charge. Owner notification letters were mailed August 11, 2021. Owners may contact Tiffin customer service at 1-256-356-8661.
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.safercar.gov.
Affected vehicles
Related recalls
More Tiffin Bus recalls
- 2020 Tiffin Bus and 1 other model — Steering pinch bolts may not have been properly tightened
- 2019–2020 Tiffin Bus and 1 other model — Windshield wipers may not work due to the control module…
- 2018–2019 Tiffin Bus and 2 other models — Alternating current electrical wires may have been…
- 2018–2019 Tiffin Allegro Open Road and 5 other models — Entry door on these vehicles may have been improperly…
- 2009–2018 Tiffin Allegro and 6 other models — These motorhomes are equipped with Kidde Plastic-Handle or…
Other campaigns involving Tiffin vehicles
Source: NHTSA recall database, campaign 21V306000 (manufacturer number TIF-116). Data last verified Jul 30, 2026.