Description
Sierra 18-2244 Non-Magnetic Drain Plug Honda Mercury
The Sierra 18-2244 is a non-magnetic marine drain plug designed for compatible Honda, Mercury, and MerCruiser gearcase applications where a 3/8"-16 gear lube fill or vent screw is specified. This replacement drain screw is commonly used for lower unit service and gear lube maintenance on supported outboard and sterndrive applications.
Key Features
- Genuine Sierra 18-2244 non-magnetic marine drain plug
- Designed for compatible Honda, Mercury, and MerCruiser applications
- 3/8"-16 thread size for matching gear lube fill or vent screw locations
- Used for lower unit, gearcase, and drive gear lube service
- Replacement component for worn, damaged, or missing drain screws
- Meets or exceeds OEM-style marine replacement quality standards
- Component only; confirm gasket requirements before installation
Fitment
- Brand: Sierra
- Part Number: 18-2244
- Product Type: Non-magnetic drain plug / drain screw
- Thread Size: 3/8"-16
- Application Type: Gear lube fill or vent screw applications
- Common Fitment: Mercury, MerCruiser, and compatible Honda marine applications where this exact part number is specified
- Compatible with MerCruiser I, R, MR, Alpha One, TR, TRS, and outboard applications requiring a 3/8"-16 non-magnetic gear lube fill or vent screw
- Replaces select Mercury/MerCruiser OEM numbers including 10-79953A2 and 10-79953Q2 where applicable
- Confirm fit by matching Sierra part number 18-2244, thread size, OEM cross-reference, model, serial range, and gearcase application before ordering
Why You Should Buy
- Practical replacement part for routine lower unit and gearcase service
- Helps restore a secure drain or vent screw connection during gear lube maintenance
- Ideal for marine repair shops, boat owners, and seasonal service work
- Conservative fitment makes it easy to verify by exact part number and thread size
- Sierra marine replacement quality supports dependable service in outboard and sterndrive applications
Common Applications
- Marine lower unit gear lube drain plug replacement
- Gearcase fill or vent screw service
- Mercury and MerCruiser sterndrive maintenance
- Compatible Honda marine gearcase applications
- Outboard and sterndrive applications requiring a 3/8"-16 non-magnetic drain screw
FAQ
- What is Sierra 18-2244 used for? Sierra 18-2244 is used as a non-magnetic gear lube drain, fill, or vent screw in compatible marine gearcase applications.
- What thread size does this drain plug use? This drain plug uses a 3/8"-16 thread size.
- Does this fit Mercury and MerCruiser applications? It is commonly used on select Mercury and MerCruiser applications where a 3/8"-16 non-magnetic gear lube fill or vent screw is specified.
- Does this fit Honda applications? It may be used on compatible Honda marine applications where Sierra 18-2244 or the matching thread and drain screw style is specified.
- How do I confirm compatibility? Match Sierra part number 18-2244, thread size, OEM cross-reference, engine or drive model, serial range, and gearcase application before ordering.