Fits: Fiat: 250DT, 300DT, 400, 415, 420, 450, 480, 500, 540, 550, 600, 640
Also Fits:
Oliver: 1250, 1250A, 1255, 1265, 1270, 1355, 1365, 1370
White: 2-50, 2-60
Allis Chalmers: 5045, 5050 (2WD only)

Additional Information:
M20x1.18mm RH Thread 3.156" Length
Reference Numbers:
A-588309, 588309, A-VPJ3168, 672550AS, A-72090115, G501711235