Mercury 350-400 HP V10 Counter-Rotation XXXL Complete Gearcase (Silver) 8M0235768

Mercury Complete Gearcase 8M0235768 is a genuine Mercury OEM replacement lower unit for select 5.7L V10 outboards. This assembly is the silver, counter-rotation, XXXL configuration. Mercury's current parts breakdown identifies it specifically as GC CXXXL SILVER.

Compatible with select applications including:

• Mercury 350 HP 5.7L V10 Verado
• Mercury 400 HP 5.7L V10 Verado
• Counter-rotation applications
• XXXL shaft configurations where 8M0235768 is specified

This is the complete gearcase assembly, not the basic gearcase housing. The corresponding counter-rotation basic housing is serviced separately as 8M0228004, along with the gear set, propeller shaft, driveshaft, bearings, seals, water pump components, and other internal parts.

Mercury offers this V10 gearcase family in multiple shaft lengths and rotations. The silver counter-rotation lineup includes Long, XL, XXL, and XXXL configurations, so the exact engine and gearcase configuration should be confirmed before ordering.

Supersedes/Replaces: 8M0200091

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

Replaces / supersedes Mercury part numbers: 8M0227994.