Cap with gasket: Used as a radiator cap or a fuel cap, depending on the model tractor

Specifications: 2-7/8" O.D. Final Application: Fits: 50 SN: 5018450 & up, 60 SN: 6035350 & up, 70 SN: 7012350 & up, 70D, 300, 320, 330, 400, 420, 430, 435, 440, 480, 500, 520, 530, 620, 630, 720, 730, 820 3-cyl., 830 3-cyl., 1010, 1020, 1520, 1530, 2010, 2020, 2030, (2040, 2240 both up to SN: 349999) 2440, 2510, 2520, 2630, 2640, 2840, 3010, 3020, 4000, 4010, 4020, 4030, 4040, 4050, 4055, 4230, 4240, 4250, 4255, 4320, 4430, 4440, 4450, 4455, 4520, 4620, 4630, 5010 Replacement Number: Notes: MHS045 is the only correct cap on the market for these 2-cylinders! Must have vented fuel tank to use this cap, make sure vent in tank is not plugged.