901328 Return gear, idle. oil pump

The return side of your oil pump is just as important as the feed, and this idle return gear from MCS is built to keep the oil moving back to the tank. It fits 1941 to early 1962 Big Twin models, covering everything from late Flatheads to Panheads. Replacing a worn idle gear helps prevent wet sumping and ensures the pump scavenges efficiently from the crankcase. Sold individually, it replaces OEM numbers 26325-49 and 901328. When you're deep in an oil pump rebuild, installing fresh gears like this one is the best way to guarantee long-term engine health and consistent oiling.