The mounting holes are 21-1/2" inches apart (center of hole to center of hole)
Pulley is for a 5/8" inch V belt
CO80 Multi-Spindle
The horizontal mounting holes are 7-7/8" inches apart
and New Universal (NU) Plow Bottoms
New Alternator Mounting Kit for Farmall SA, 100, 130, 200, 230 Tractors, MADE IN USA The mounting holes are 21-1/2"New Alternator Conversion Mounting Kit with Bolts for International and IH Farmall A, AV, B, BN, C, Super A, Super A 1, Super AV, Super AV 1, Super C, 100, 130, 200, and 230 Tractors. Alternator mounting kit will also fit International Harvester (IHC) Power Units: U2, U2A. MADE IN USA!!! This conversion kit is used when updating a generator equipped tractor to modern style alternator for the charging system.