Vehicle recall 11V422000 · August 17, 2011
Pierce Arrow XT, Custom Contender and 4 more models
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…
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Pierce is recalling certain model year 2011 arrow xt, custom contender, dash cf, impel, saber, and velocity emergency vehicles manufactured from January 24, 2011, through April 19, 2011, equipped with a cummins isb, isx, isc, 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
- 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
- Pierce 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 pierce at 1-920-832-3000.
- Notes
- Cummins recall campaign number is C1154.PIERCE'S recall campaign number is 74B221.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.
Recall details
- NHTSA campaign
- 11V422000
- Reported to NHTSA
- August 17, 2011
- Filed by
- PIERCE MANUFACTURING
- Manufacturer campaign
- 74B221
- Owner notification
- October 10, 2011
- Vehicles potentially affected
- 18
- Initiated by
- the manufacturer
- Components
- Engine and engine cooling
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Pierce Arrow XT (2011): 2011
- Pierce Custom Contender (2011): 2011
- Pierce Dash CF (2011): 2011
- Pierce Impel (2011): 2011
- Pierce Saber (2011): 2011
- Pierce Velocity (2011): 2011
Has your Pierce been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Pierce dealer can also check your VIN. Recall repairs are free.