0397698 – Gear – Evinrude/Johnson (Forward Gear, small-gearcase)

The 0397698 gear is the correct OEM forward gear for small-gearcase lower units on many vintage Johnson and Evinrude outboards (small-horsepower 4–8 HP class). This gear transfers engine power smoothly and reliably from the driveshaft to the propeller shaft. It is precision-machined to match original specifications, ensuring proper tooth alignment and smooth meshing.

Installing this forward gear restores reliable thrust and prevents slipping, grinding, or premature gear wear — common problems when using worn or mismatched gears. When used along with the corresponding reverse gear (part number 0397699) and bearing (part number 0397696), it helps rebuild the lower unit to full OEM-spec condition with minimal vibration or shaft misalignment. A well-matched gear set ensures efficient power delivery and extends the life of your gearbox.

This gear fits outboards using the “small gearcase” design used in many older Johnson and Evinrude outboards. The set-up is ideal for rebuilds, restorations, or repairing stripped gears.

Shop at Arizona Outboard Dismantlers to keep your outboard running strong and ready for the water.