TWIN Mercury  Lower Units V8 4.6L CXL &XL Sulver 8M0142310 8M0142309 250- 300HP Gear Case 25" 12 x 21 1.75:1 ratio


This listing is for a counter rotating pair of lower units, with super low hours off a 2021 year model.

Quantity 2 both left and right hand.


This pair of units are both in perfect operational condition, as they shift smoothly in and out of gear.


We offer a 90 day warranty on this unit.


This is a 5.44 torpedo case 12x21 1.75:1 ratio.


CXL & XL. This is not the seapro version.


This unit cost $9,121.95 on boats.net


This is a listing for a Mercury Marine gear case for an outboard motor. It is a 4-stroke, 250-300 horsepower, XL 25" (shaft length) Silver gear case, Part Number 8M0142310 8M0142309 that has been used for low hours. This is a complete outboard lower unit that is in like new condition. It comes with a 90-day warranty from the manufacturer. The item is manufactured in the United States by Mercury Marine.