Mercury Racing 450R Sport Master 1.60:1 Counter-Rotation Long Complete Gearcase (Graphite Gray) 8M0189219

Mercury Racing Sport Master Complete Gearcase 8M0189219 is a genuine OEM replacement gearcase for the Mercury Racing 450R 4.6L V8. This Sport Master configuration has a 1.60:1 gear ratio, counter-rotation, Long shaft length, and Graphite Gray finish.

Configuration:

• Mercury Racing 450R 4.6L V8
• Sport Master
• 1.60:1 gear ratio
• Counter-rotation
• Long shaft length
• Graphite Gray
• Complete gearcase assembly

This complete assembly includes the gearcase housing and internal gearcase components as an assembled replacement unit. Mercury offers different 450R Sport Master configurations based on rotation, shaft length, skeg configuration, and color, so the replacement should be matched to the specific outboard before ordering.

Supersedes/Replaces: 8M0159662

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