If you're the proud owner of a 2011 or 2012 Thor Tuscany, Astoria or Avanti, equipped with a Cummins ISX or ISL diesel engine you’ll want to make an appointment with a service department near you. According to RV Daily Report “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.
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. TMC 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 (812) 377-5000.
The NHTSA number for the Cummins recalls is 11E-031. Cummins' recall campaign number is C1154.”
Don’t forget you can always make a service appoint on-line with RV Country or give us a call at (800) 959-6485.