2012 Western Star 4700 PCV & Breather Components
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- Baldwin Filters®Crankcase Breather FilterWestern Star 4700 2012, Crankcase Breather Filter by Baldwin Filters®. Baldwin crankcase ventilation filters reduce blow-by, which is generated by combustion gases leaking past piston rings, producing oil droplets that would otherwise...High quality at an affordable priceExpertly made from premium materials$117.44