Mercury 150 HP SeaPro Long Complete Gearcase 8M0099909

Mercury Complete Gearcase 8M0099909 is an OEM replacement lower unit designed specifically for select Mercury 150 HP EFI SeaPro FourStroke outboards. Mercury parts diagrams identify it as the complete Long (L) standard-rotation SeaPro gearcase assembly.

Compatible with the following:

• Mercury 150 HP EFI SeaPro FourStroke
• Standard-rotation SeaPro applications
• Long (L) shaft configurations

This is the complete gearcase assembly, rather than an empty gear housing. The internal gearing and related lower-unit components are supplied as part of the assembly. The corresponding basic SeaPro gear housing is 8M0099907.

8M0099909 is specifically the SeaPro version. Mercury lists 8M0099218 separately for comparable non-SeaPro Long applications, so the two should not be treated as interchangeable without confirming the engine configuration.

Specifications

Part Number: 8M0099909
Type: Complete Gearcase Assembly
Application: Mercury 150 HP EFI SeaPro FourStroke
Rotation: Standard
Configuration: Long (L)
Basic Gear Housing: 8M0099907

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