NHTSA Recall 12V048000: Engine and engine cooling
TIFFIN MOTORHOMES, INC. reported this safety recall to NHTSA on , covering an estimated 13 vehicles. It affects 2 models including the Tiffin Phaeton.
| NHTSA campaign | 12V048000 |
|---|---|
| Component | ENGINE AND ENGINE COOLING |
| Report received | February 8, 2012 |
| Owner notification | October 10, 2012 |
| Initiated by | Manufacturer |
Defect
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.
Safety risk
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.
Remedy
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.
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 <a href=http://www.safercar.gov>http://www.safercar.gov</a> .
Vehicles covered by recall 12V048000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.