Technical Service Bulletin 21V506 — 2018 NEWMAR MOUNTAIN AIRE
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 21V506 |
| Manufacturer | |
| Vehicle | 2018 NEWMAR MOUNTAIN AIRE |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
Daimler Trucks North America has decided that a defect relating to motor vehicle safety exists in specific motorhomes built on Freightliner chassis (NHTSA #21V 326) based on Cummins recall (NHTSA # 21E 032). In response, Newmar Corporation is issuing recall NHTSA # 21V 506 and TC # 2021-427. On certain motorhomes, as described in Cummins recall 21E-032, the fuel rail assembly on the engine may develop leaks, which may result in an undetected prolonged diesel fuel spray. A leak involving spraying/misting fuel in the presence of an ignition source may increase the risk of fire.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.