Mercury 150 HP Pro XS Basic Gearcase Housing 8M0228058

Mercury Basic Gearcase Housing 8M0228058 is a genuine Mercury OEM replacement gearcase housing used on select 150 HP EFI Pro XS FourStroke outboards. It forms the main housing for the gears, propeller shaft, bearings, seals, shift components, and other internal lower-unit components.

Compatible with select applications including:

• Mercury 150 HP EFI Pro XS FourStroke
• Long-shaft gearcase configurations
• X-Long gearcase configurations where 8M0228058 is specified

This is the basic gearcase housing, not a complete lower unit. Internal components including the gear set, propeller shaft, bearing carrier, bearings, seals, clutch, and shift components are serviced separately.

Mercury parts breakdowns show this basic housing used with complete 150 Pro XS Long and XL gearcase configurations, making serial-number verification important before ordering.

Supersedes/Replaces: 8M0145312

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