Mercury Basic Gearcase Housing 8M0057747

Mercury Basic Gearcase Housing 8M0057747 is a genuine Mercury OEM replacement housing for select Mercury 65-150 HP FourStroke outboards. It serves as the basic housing used across multiple compatible standard, Command Thrust, and counter-rotation gearcase configurations.

Compatible with select applications including:

• Mercury 65 Jet FourStroke
• Mercury 75 HP EFI FourStroke
• Mercury 80 HP EFI FourStroke
• Mercury 80 Jet FourStroke
• Mercury 90 HP EFI FourStroke
• Mercury 100 HP EFI FourStroke
• Mercury 115 HP EFI FourStroke
• Mercury 115 Pro XS FourStroke
• Mercury 150 HP FourStroke

This is the basic gearcase housing, not a complete assembled lower unit. Internal gears, propeller shaft, driveshaft, bearing carrier, bearings, seals, and other gearcase components are serviced separately as required for the specific application. 

The same basic housing is also shown in compatible 2.38:1 standard and counter-rotation Command Thrust configurations. SeaPro applications may instead use the separate 8M0099907 basic housing, depending on the engine and gearcase configuration. Please confirm fitment using your engine's serial number. 

Specifications

Part Number: 8M0057747
Type: Basic Gearcase Housing
Brand: Mercury Marine
Application: Select FourStroke gearcases
SeaPro Version: 8M0099907

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.