Description

Sierra’s 18-2244 Drain Screw is designed for use with Mercruiser I, R, MR, Alpha One, TR, TRS, and all outboards equipped with 3/8″-16 non-magnetic gear lube fill or vent screw applications. It is interchangeable with Chrysler/Force/US Marine 10-79953, 10-79953A2, 10-F50109, F40109, GLM 22420, Mallory 9-72650, and multiple Mercruiser and Mercury Marine part numbers, providing broad OEM compatibility. Built to meet or exceed original equipment specifications, it delivers reliable performance for marine gearcase service and maintenance. This drain screw includes the 18-2945 drain screw gasket for a complete sealing solution and features a 3/8″-16 (9.5mm-16) thread size for proper fit.

Features

Designed for Mercruiser I, R, MR, Alpha One, TR, TRS, and compatible outboards with 3/8″-16 gear lube fill or vent screws
Interchangeable with GLM 22420, Mallory 9-72650, and multiple Chrysler/Force and Mercruiser part numbers
Includes 18-2945 drain screw gasket for complete sealing performance
Compatible with a wide range of Mercury Marine and OMC-related applications
Built to meet or exceed OEM specifications for dependable marine durability
Thread Size: 3/8″ or 9.5mm – 16
For: MerCruiser I,R,MR,Alpha One,TR,TRS & all O/Bs with 3/8-16 non-magnetic gear lube fill or vent screws
Premium quality for longer life
Meets or exceeds manufacturer specs
Backed by Sierra’s Limited Lifetime Warranty