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Re: AC capacity 04 WESTERN STAR
Posted to HD/Fleet Forum on 7/8/2010

Your vehicle has a radiator mounted condenser and a bunk HVAC unit. The correct charge is 5.8 lb or 5 lb 13 oz of R134A. This vehicle was built just before a cutoff date where we made some changes to the HVAC and lowered the charge by one pound. Login to read more.