Multiquip 90601ZE1000 Drain Plug Washer 10.2mm

The Multiquip 90601ZE1000 is a genuine OEM Drain Plug Washer 10.2mm designed for a wide range of Multiquip, Whiteman, Essick, and STOW equipment — including MTX-series rammers, MVC and MVH plate compactors, concrete and mortar mixers, walk-behind trowels, masonry saws, pumps, and generators. As an OEM-sourced component, 90601ZE1000 is manufactured to the exact material grade and dimensional specification required for a proper oil-tight seal. With fitment spanning models such as MTX70, MTX70HDR, MVC82VH, MVH150VGH, MC-64S, WM-70S, JH55C, and dozens more, this washer is a high-volume service item stocked for fast order fulfillment at DHS Equipment.

Key Features

• Correct Sealing Thickness and Inner Diameter — The 10.2mm specification ensures full compression against the drain plug shoulder, preventing oil seepage at the drain port on Honda-engined and other power units across multiple equipment families.
• Genuine OEM Material Grade — Sourced directly from Multiquip, this washer is produced from the same crush-resistant material used in original assembly, maintaining the correct torque-to-seal relationship at the drain plug.
• Direct Drop-In Service Part — Replaces the existing washer without machining or modification; installs during any routine oil change as a standard consumable replacement.
• Broad Cross-Equipment Fitment — Confirmed fitment across MTX rammers, MVC and MVH plate compactors, MC and WM mixers, walk-behind trowels, masonry saws, centrifugal and diaphragm pumps, and portable generators — one part number covers a full service fleet.
• Prevents Oil Contamination and Dry-Running Risk — A failed or missing drain plug washer allows oil to leak past the plug, leading to low oil conditions that cause accelerated engine wear or seizure across any of the compatible machines.

The drain plug washer is a small but critical sealing component fitted between the oil drain plug and the engine or gearbox casing. Its job is to deform slightly under torque, filling any microscopic surface irregularities and creating a leak-free seal that keeps engine oil contained between service intervals. Because the washer is subjected to heat cycling, vibration, and repeated removal during oil changes, it loses its ability to compress and seal correctly over time — making it a standard replacement item at every oil service. Reusing a worn or flattened washer is a common cause of slow oil leaks that go unnoticed until oil levels drop to a damaging level.

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.