View 8 Photos View 0 Videos 2007 Used Peterbilt 378 Fifth Wheel Crossmember $361 USD Used 378 Fifth Wheel Crossmember, W x H x L: 13.25"x9.50"x33.25" ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2007Stock Number648-12855 MLS Number13984104CategoryCrossmembers Last Updated1/24/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info