Allis Chalmers 5040, 5045 & 5050 Fits Following Tractors Fiat, Long, Hesston, Universal, Whiter / Oliver, MM, AC Tractors replacement TACHOMETER Fits Fiat Tractors 450, 480,480-8, 550, 500,540, 600,640, 900, 1000, Universal Tractors 350, 4445, 500, 530, 550, 640 White Tractors 1270, 1370, 1470, 2-50 & 2-60 Oliver / Cockshutt 1250-A, 1255, 1265, 1355, 1365, 1450, 1465 Minneapolis Moline G350 & G450 Long Tractors 310, 350, 360, 445, 460, 510, 550, 560 85 mm dia diameter 5/8 thread size. Please Note: The Tach in this Assembly uses a Threaded 90 Degree Angle Adaptor (not included). FIATBL-CW-CR