The 1111708 Delco was designed for the N62 Continental engine found in the little model G Tractor. Over time, the little G's Distributor would start to get a wobble in it and before you know it, the engine is running kinda lousy. Eating main shaft bushings seem to be a common problem with the G. Always check for excessive side to side play in the Distributor. We have an exchange unit or we can rebuild yours.  Core needed before we ship!