3/8-16 Oil Drain Plug Kit For Mercury Mariner MerCruiser Outboard Gearcase Lower Unit Lube Drain And Fill Hole Screws And Seals With Rubber Coated Stainless Steel Construction

3/8-16 Drain Plug Kit for Marine Gearcases and Outboards
✔️ 2-pack oil drain plug kit with rubber-coated stainless steel seals

This oil drain plug kit fits 3/8-16 drain/fill holes across MerCruiser stern drives, Mercury, and Mariner outboards (not Verado). It includes a rubber-coated stainless steel seal and replacement gaskets to prevent gear lube leaks and water intrusion during oil changes.

✅ 2-pack oil drain plug and seal gasket included
✅ Fits 3/8-16 gearcase drain/fill holes on MerCruiser stern drives, Mercury, and Mariner outboards
✅ Rubber-coated stainless steel construction for corrosion resistance
✅ Non-magnetic plug screw version with OEM-style seal to secure the drain plug

💡 What is a 3/8-16 oil drain plug kit used for in Mercury Mariner MerCruiser gearcases? This handy kit helps seal drain/fill holes during gear oil changes while protecting against water intrusion. - Fits 3/8-16 drain/fill holes on MerCruiser gearcases and Mercury/Mariner outboards - Includes 2 plugs and seals for a secure, reliable oil change - Rubber-coated stainless steel construction resists corrosion in marine use - Replaces OEM parts and aligns with Mercury/Mariner/ MerCruiser specifications