View 12 Photos View 0 Videos 2005 Peterbilt 387 Horn $50 USD Air horn pulled from a 2005 Peterbilt 387, Approx. 14.5" Length - 4" Horn Diameter, Air horn is in good used condition, see pictures. ConditionUsedFits To Make(s)PETERBILTFits To Model(s)387Stock Number9147 MLS Number12738700CategoryHorns Last Updated1/15/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info