Mercury 12635T Reverse Gear

Mercury 43-12635T Reverse Gear for 110-125 HP Outboards

The Mercury 43-12635T Reverse Gear is a genuine OEM replacement gear for select Mercury and Mariner 110, 115, and 125 HP 2-cylinder outboards. This reverse gear is designed for compatible gearcase applications equipped with a 3 jaw reverse clutch.

This gear is used where part number 43-12635T is specified by the Mercury parts diagram. When servicing this gearcase, the pinion/forward gear assembly and seal or seal and bearing kit are also required where specified.

Product Features:

• Genuine OEM Mercury reverse gear
• Fits select Mercury and Mariner 110, 115, and 125 HP 2-cylinder outboards
• Designed for applications with 3 jaw reverse clutch
• Direct replacement where part number 43-12635T is specified
• Used during compatible gearcase service or repair
• Built to Mercury Marine OEM fit and performance specifications

Product Details:

• Brand: Mercury
• Manufacturer Part Number: 43-12635T
• Part Type: Reverse Gear
• OEM Description: Gear-Reverse
• Application: Select Mercury and Mariner 2-cylinder outboards
• Clutch Type: 3 jaw reverse clutch
• System: Gearcase / lower unit

Fits Select Mercury/Mariner Applications:

• 110 HP 2-cylinder outboards, serial number 0B209468 and newer, with 3 jaw reverse clutch
• 115 HP 2-cylinder outboards, serial number 0B209468 and newer, with 3 jaw reverse clutch
• 125 HP 2-cylinder outboards, serial number 0B209468 and newer, with 3 jaw reverse clutch

Additional Required Components:

• Pinion/forward gear assembly
• Seal kit or seal and bearing kit where specified

Service Note: Follow your Mercury service manual for gearcase disassembly, gear inspection, clutch compatibility, bearing and seal replacement, shim setup, torque specifications, and reassembly procedures.

Fitment Note: Reverse gear fitment should be verified by outboard model, horsepower, serial number, gearcase configuration, clutch type, parts diagram, and existing gear part number before ordering. Please confirm this reverse gear is correct for your Mercury or Mariner 110/115/125 HP 2-cylinder outboard before purchasing.

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