Multiquip 031112230 Drain Plug Washer 12mm

The Multiquip 031112230 is a genuine OEM Drain Plug Washer 12mm engineered for a wide range of Multiquip and Whiteman equipment, including MVC and MVH plate compactors, MC series concrete mixers, GA series generators, WM70 mortar mixers, walk-behind rollers, and trash pumps. As an authorized OEM part, 031112230 is manufactured to the exact material grade and dimensional tolerances required to form a leak-free seal at the oil drain port. This washer is a direct-fit replacement that installs without modification across all compatible models listed in the fitment data. Keeping a supply of this low-cost consumable on hand means oil changes stay clean, fast, and properly sealed every service interval.

Key Features

• OEM-Grade Sealing Material — Manufactured to the precise thickness and crush specification required to seal a 12mm drain plug without weeping or over-compression.
• Direct-Fit Installation — Sized to seat flush against the drain plug and oil sump surface on all compatible Multiquip models, dropping in without any adjustment.
• Broad Cross-Equipment Compatibility — Fits MVC60, MVC88, MVC90, MVH128 through MVH508, MC12PH, MC64, MC94, GA3.6HR, GA6HB, WM70, V305EH, RW3010, MRH800GS, MQ62TDD, DLW400ESA4, DLW500ESA4, and more.
• Prevents Oil Leaks at the Drain Port — A worn or reused crush washer loses its sealing force, allowing oil to seep past the drain plug and contaminate the worksite or starve the engine of lubrication.
• Consumable Service Item — Designed to be replaced at every oil change; stocking multiples of part 031112230 ensures every service interval is completed correctly the first time.

A drain plug washer is a small but critical sealing component that sits between the oil drain plug and the threaded sump opening on an engine or gearbox. Its job is to deform slightly under torque, filling any microscopic surface irregularities to create a pressure-tight seal that keeps engine oil from escaping. Over repeated oil changes, the washer loses its ability to re-crush and seal effectively, which can result in slow oil leaks that go unnoticed until oil levels drop dangerously low. Replacing this washer at every drain interval is standard maintenance practice that protects the engine and keeps the machine running cleanly.

For fitment questions or to confirm compatibility with your specific unit, contact the DHS Equipment parts team before ordering.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.