Exhaust Valves (4) Fits Ford 2000 4000 4130 501 600 700 701 800 801 900 901 NAA model-4420 4425 6600 6602 6620 6622 7700 7720 Inside Diameter: 1/2" (12

Inside Diameter: 1/2" (12

SN <-122999)

One New Pack of 5 Aftermarket Replacement 701 Keys Fits Ditch Witch Models: JT20

Fits Case Backhoe Loader(s): 480C

Number Of Teeth 9

Exhaust Valves (4) Fits Ford 2000 4000 4130 501 600 700 701 800 801 900 901 NAA model-4420 4425 6600 6602 6620 6622 7700 7720 Inside Diameter: 1/2" (12Pack of (4) New Aftermarket Replacement Exhaust Valves Fits Ford New Holland Tractors This listing includes four (4) new aftermarket exhaust valves Fits Ford and Fits New Holland tractors equipped with 134, 172, or 192 CID 4 cylinder gasoline engines (1953 1964). Exhaust valves seat in the cylinder head and control the release of combustion gases from each cylinder. These are free rotating, 45 degree seat valves and use the EAM6518A valve lock.