Have a great Christmas and a Happy New Year! Our staff is on their winter break until Jan 5 2026. Orders placed now will be shipped when we get back.

Welcome to PartsDuck, the customer-first boat parts store.

MERCURY/QUICKSILVER  |  SKU: 710-22-8M0058389

OEM Mercury / Quicksilver 8M0058389 Lower Unit Gear Lube Drain and Fill Hole Screw & Seal, Magnetic

Regular price $12.09

🛡️ Lifetime Parts Guarantee

We’ve got your back: For real, For life. Learn More

Free Shipping On All Orders!

(Normally)In stock items ship same or next business day from the closest of our 20 warehouses with stock. $6.99 flat rate, or free over $100.

Phone Support (856) 666-7986

Call us with questions 9-5 Monday - Friday.

(856) 666-7986

No Fee Returns for 30 Days

Call us with questions 9-5 Monday - Friday.

(856) 666-7986

Description

Lower unit gear lube drain and fill hole screw and seal 8M0058389 is used with 3/8-16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. It is very important to use the seal to make sure the drain/fill hole screw seats properly to retain the gear lube in the gear case and keep damage causing water out of the gear case.