Collection: 75/90/115 HP Optimax 2004-2014

We offer a complete rebuild kit for this gearcase as well as individual aftermarket parts. Please select from the following list or from the photos below:

Complete Rebuild Kit

The following parts correspond to the numbers on the diagram to the right:

1. Inner Forward Gear Bearing
2. Outer Forward Gear Bearing
3. Top Drive Shaft Bearing
4. Bottom Drive Shaft Bearing
5. Reverse Gear Thrust Bearing
6. Forward Carrier Gear Bearing
7. Aft Carrier Bearing
8. Cam Follower Kit
9. Gear Set
• 75-90 HP 1998-2006
• 115 HP Optimax
10. Clutch Dog
11. Clutch Dog Pin
12. Clutch Dog Spring
13. Prop Shaft
14. Bearing Carrier
15. Drive Shaft
16. Pinion Nut
17. Shim Kit

 We also offer the following items:

• Shift Cam
• Water Pump Kit
• Lower Seal Kit
• Bearing Kit