Western star: at return line fitting, during cold extreme temperatures, the diesel exhaust fluid (DEF)...
Western Star technical service bulletin WS-49-13 for 2014 Western Star 4900, 2014 Western Star 4700 and 2012 Western Star Constellation and others.
- Bulletin number
- WS-49-13
- Component
- Fuel system, diesel: pre-heater
- Summary
- Western star: at return line fitting, during cold extreme temperatures, the diesel exhaust fluid (def) tank would freeze.
Vehicles covered
- Western Star 4900 2014 2014
- Western Star 4700 2014 2014
- Western Star Constellation 2012 2012
- Western Star 6900 2014 2014
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