New Red Rhino / Mercury & Mariner & Force Outboard 1998-2006 “L4” 100-125 HP Gearcase Rebuild Kit

Featuring all the parts needed to effectively rebuild an outboard gearcase in one convenient package, our lower unit rebuild packages offer a combination of aftermarket kits, bearings, gears, and seals, all complete with a one-year limited warranty. In addition to the parts detailed below, please email us or fill out the form below if you need any other parts to get your motor running again.

This rebuild kit, designed for a Mercury/Mariner Outboard L4 100-125 HP, will fit models from 1998 to 2006.

Before ordering, please select the appropriate model from the two options above and check for any price adjustments.

It includes the following items:

Gear Set (Kit will be one of the two below depending on year and model of motor)

• 3 Jaw (1987-1997) [Replaces OEM# 43-19672A1]

• 6 Jaw (1998-2006) [Replaces OEM#s 43-881260A1 & 43-850036T]

Clutch Dog (Will be one of the two below depending on year and model of your motor)

• 3 Dog (1987-1997) [Replaces OEM# 52-822539T]
• 6 Dog (1998-2006) [Replaces OEM# 52-850048T]

Clutch Dog Spring [Replaces OEM# 24-30893]

Clutch Dog Pin [Replaces OEM# 17-30632]

Pinion Nut [Replaces OEM# 11-35921]

Water Pump Kit [Replaces OEM# 47-43026T11]

Seal Kit [Replaces OEM# 26-43035A4]

Shim Kit [Replaces OEM#s 44491A1 & 44492A1]

Bearing Kit [OEM Replacement #s in Parentheses] [Includes Inner Forward Bearing (31-30895T), Outer Forward Bearing (31-30894A1), Bottom Drive Shaft Bearing (31-42677A1), Reverse Thrust Bearing (31-12576T), Aft Carrier Bearing (31-30956T), Forward Carrier Bearing (31-12578A), and Top Drive Shaft Bearing]