Grover Products 1630 Air Horn Valve Grover Products 1630 Manual Control Valve for Air Horns Valve: Plastic Universal Inlet: 1/8" pipe, Outlet 1/8" pipe Size: 3 1/2" long x 1" Dia Volvo Part Number 1113619. Replace Volvo G2496459, V1113619, 02-7018563, 506481, 547619, 3082411