20-21
Western Star technical service bulletin 20-21 for 2011-2013 Western Star 4700.
- Bulletin number
- 20-21
- Component
- Engine
- Summary
- 20-21 - Fan Shroud Fastener Retrofit, 4700 with DD13 Engine
Vehicles covered
- Western Star 4700 2011-2013 201120122013
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