M8 oil pump assembly, High Volume. Oil cooled

Nothing that can't be improved upon and here is the high volume oil pump for M8 air cooled / oil cooled models. Complete with a larger feed & return gerotor assembly, rear cover and relief valve & spring. Improves feed 126%/123% and scavenge 131%/146% @1000rpm/2500rpm compared the OEM 4th. gen. M8 pumps. Ready to install and complete with instructions. Note: Replaces 62400178 (17-19) & 62400238 (20-25) pump and 62400206 (17-19) & 62400245 (20-25) rear cover. Note: Does not fit Twin Cooled (water cooled) models.