OFFICIAL CAMPAIGN FILE

NHTSA campaign 11V474000

NHTSA campaign 11V474000 covers 12 published year-and-model reports from 3 makes in this index and lists 6,225 potentially affected units campaign-wide. VIN eligibility must be checked separately.

Report received September 15, 2011 · Snapshot September 21, 2026

01 / DEFECT RECORD

What NHTSA campaign 11V474000 says

NHTSA campaign 11V474000 identifies ENGINE AND ENGINE COOLING and states that 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.

Defect summary

Daimler trucks is recalling certain model year 2011- 2012 business class m2 and coronado trucks manufactured from september 1, 2010, through december 31, 2010, equipped with a cummins isx or isl 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.

Consequence summary

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.

02 / CORRECTIVE ACTION

Remedy for NHTSA campaign 11V474000

For NHTSA campaign 11V474000, the filed corrective action says: Daimler trucks is working with cummins to identify and notify owners of the recall campaign. repairs will be performed by authorized cummins dealers free of charge. the safety recall began on october 10, 2011. owners may contact cummins at 1-812-377-5000 or daimler trucks at 1-800-547-0712.

Daimler trucks is working with cummins to identify and notify owners of the recall campaign. repairs will be performed by authorized cummins dealers free of charge. the safety recall began on october 10, 2011. owners may contact cummins at 1-812-377-5000 or daimler trucks at 1-800-547-0712.

Owner notification: October 10, 2011
Filing manufacturer: DAIMLER TRUCKS NORTH AMERICA
Component groups: ENGINE AND ENGINE COOLING

03 / PUBLISHED VEHICLES

Vehicles listed under NHTSA campaign 11V474000

RecallRoad links 12 year-and-model reports associated with NHTSA campaign 11V474000; the list reflects published source rows, not individual VIN coverage.