Tiffin recall: Engine and engine cooling
What is wrong
Tiffin is recalling certain model year 2011, 2012, and 2013 recreational vehicles, models phaeton and zephyr, equipped with a cummins isb, isc, isl, or isx diesel engine. The v-band clamp assembly, part numbers q187684, q187685, and q187686, used to connect the inlet and outlet cone sections to the diesel oxidation catalyst (doc)/diesel particulate filter (dpf) include a t-bolt which can fracture and fail when subjected to stress or load. A fracture or failure of the t-bolt may cause the clamp to loosen and the inlet or outlet sections attached to the doc/dpf housing to disconnect.
What could happen
If the inlet or outlet sections disconnect, hot exhaust gases can vent prior to exiting the tailpipe, creating the risk of combustion and a fire. If both clamps fail, there is a risk in some applications that the doc/dpf housing may detach completely, creating a road hazard.
The fix
Tiffins is working with cummins to identify and notify owners of the recall campaign. Repairs will be performed by authorized cummins dealers free of charge. Owners may contact cummins at 1-812-377-5000 or tiffins at 256-356-8661.
Vehicles covered
- Tiffin Phaeton 2011–2012
- Tiffin Zephyr 2013
Facts
- NHTSA recall number
- 12V048000
- Type
- Vehicle
- Filed by
- Tiffin Motorhomes, Inc.
- Reported to NHTSA
- Feb 8, 2012
- Owners notified
- Oct 10, 2012
- Vehicles or items affected
- 13
- Started by
- The manufacturer
- Built
- –
- Part
- Engine and engine cooling
Notes
Cummins recall campaign number is c1154. Owners may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to http://www.safercar.gov .
Other recalls for the same vehicles
- Tiffin recall: Electrical system Jun 29, 2026
- Tiffin recall: Structure May 2, 2025
- Tiffin recall: Electrical system Jul 30, 2024
- Tiffin recall: Seats Jan 23, 2024
- Tiffin recall: Equipment Sep 20, 2023
- Tiffin recall: Electrical system Jun 5, 2023
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.