All of our new parts are aftermarket replacements. Compatible with Minneapolis Moline Tractor(s) G955, G1355. Compatible with Oliver Tractor(s) 1750, 1755, 1850, 1855, 1955, 2255. Compatible with White Tractor(s) 2-85, 2-88, 2-105, 2-110, 2-150, 4-150. Replaces White OEM nos 158281A. Output Spline Count: 6. Rotations Per Minute: 540. All States Ag Parts Item No.