Mercury 350 HP V10 SeaPro Long Complete Gearcase (Silver) 8M0235791

Mercury Complete Gearcase 8M0235791 is a genuine Mercury OEM replacement lower unit for select 350 HP 5.7L V10 SeaPro outboards. This assembly is the silver, standard-rotation, Long SeaPro configuration. Mercury identifies the part as GC L SILVER SP.

Compatible with select applications including:

• Mercury 350 HP 5.7L V10 SeaPro
• Standard-rotation SeaPro applications
• Long-shaft configurations where 8M0235791 is specified

This gearcase is part of Mercury's 6.44-inch torpedo gearcase platform used with the 5.7L V10 family. The same parts family includes 350 HP V10 SeaPro as well as 350 and 400 HP V10 Verado applications, but the SP designation identifies this particular assembly as the SeaPro configuration.

This is the complete gearcase assembly, not the basic gearcase housing. The corresponding SeaPro basic housing is 8M0228005, while gears, shafts, bearings, seals, and other internal components are available separately.

Related standard-rotation SeaPro assemblies include 8M0235792 (XL), 8M0235793 (XXL), and 8M0235794 (XXXL).

Supersedes/Replaces: 8M0200092, 8M0227995

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