2011–2012 Tiffin Phaeton, 2013 Tiffin Zephyr Recall: Engine and Engine Cooling
NHTSA campaign 12V048000 · Engine and Engine Cooling · filed Feb 8, 2012 · verified Jul 30, 2026
The 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.
The 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.
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
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.
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> .
Affected vehicles
Related recalls
More Tiffin Phaeton recalls
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- 2022 Tiffin Allegro Bus and 3 other models — Pedestal mounting plate on the driver's seat may be…
- 2023 Tiffin Phaeton — Remote Stage 2 fuel filter hoses may have been damaged…
- 2022–2023 Tiffin Allegro Bus and 2 other models — A fuse will trip during an a/c compressor failure, causing…
Other campaigns involving Tiffin vehicles
Source: NHTSA recall database, campaign 12V048000. Data last verified Jul 30, 2026.