Mercury Command Thrust Counter-Rotation Complete Gearcase 8M0102751

Mercury Complete Gearcase 8M0102751 is a genuine Mercury OEM replacement lower unit for select 65-115 HP EFI FourStroke outboards equipped with a Command Thrust counter-rotation gearcase. Mercury identifies this assembly as G/C CT CL, distinguishing it from the standard-rotation and SeaPro gearcase configurations available within the same engine family.

Compatible with select applications including:

• Mercury 65 HP Jet FourStroke
• Mercury 75 HP EFI FourStroke
• Mercury 80 HP EFI FourStroke
• Mercury 80 HP Jet FourStroke
• Mercury 90 HP EFI FourStroke
• Mercury 100 HP EFI FourStroke
• Mercury 115 HP EFI FourStroke
• Select SeaPro models where 8M0102751 is specified

This is a complete gearcase assembly, rather than an empty gear housing. It is part of Mercury's 2.38:1 Command Thrust gearcase family and is configured for counter-rotation applications. Mercury parts diagrams list it alongside other Long, X-Long, CXL, and SeaPro gearcases, so matching the exact configuration is important when replacing a lower unit.

Specifications

Part Number: 8M0102751
Type: Complete Gearcase Assembly
Gear Ratio: 2.38:1
Gearcase: Command Thrust
Rotation: Counter-Rotation
Configuration: CL

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