Mercury & Mariner 1994-2007 3.0L 200 HP & 250 HP DFI Gearcase Parts Diagrams
This page provides comprehensive lower unit and gearcase parts for Mercury and Mariner 3.0 L DFI outboard engines rated between 200 and 250 HP, covering model years 1994 through 2007. Customers can explore parts such as gearcases, seals, water pumps, impellers, prop shafts, pinion bearings, drain plugs, and more. Whether you're performing maintenance or repairing damaged units, OBParts offers both OEM and quality aftermarket components with fast shipping and expert support.
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:
The following parts correspond to the numbers on the diagram to the right:
- Inner Forward Gear Bearing
- Outer Forward Gear Bearing (Must provide number stamped on bearing race)
- Carrier Bearing
- Top Drive Shaft Bearing
(Single Bearing Application uses 31-36387A1; Double Bearing Application uses both 31-36387A1 & 31-48939A) - Bottom Drive Shaft Bearing
- Reverse Gear Bearing
- Gear Set (Must provide number stamped on bearing race)
- Bearing Carrier
- Clutch Dog
- Tab Washer
- Cover Nut
- Prop Shaft
- Drive Shaft
- Single Bearing (1996-1998)
- Double Bearing (1998-2007)
- Pinion Nut
- Drive Shaft Cap
We also offer the following items:
32 of 32 Items
32 of 32 Items