Multiquip 20116 O-Ring Size 031 Buna N

The Multiquip 20116 O-Ring Size 031 Buna N is a genuine OEM seal designed for Whiteman and international ride-on power trowel models including JWN24HTCSL/HSCSL, HHN31V, HHNG5, HHXDF4-DF5, EHHNK5, HHXG5, HHXD5, HHXD5-ES, HHN34TVD, HTN28K, and HTN27K. As a factory-sourced component, part 20116 meets the exact material and dimensional specifications required for proper sealing in your Whiteman trowel. DHS Equipment supplies this genuine OEM part to help you restore your machine to full operating condition with confidence. Verify your model against the fitment list to ensure this is the correct O-ring for your application.

Key Features

• Buna N Nitrile Construction — Buna N (NBR) rubber compound provides strong resistance to hydraulic fluids, oils, and grease — the materials this seal is regularly exposed to in ride-on trowel applications.
• Exact Size 031 Dimensional Spec — Manufactured to the Size 031 O-ring standard, ensuring the correct cross-section and inner diameter for a leak-free static or dynamic seal without rework or shimming.
• Genuine OEM Part — Sourced directly from Multiquip, part number 20116 is built to the same specification as the original component installed at the factory — no guesswork on material grade or sizing.
• Wide Ride-On Trowel Compatibility — Confirmed fit across multiple Whiteman mechanical and heavy-duty ride-on trowel series, including HHN, HTN, JWN, and HHXD/HHXG model families.
• Critical Leak Prevention — A failed or compressed O-ring in a trowel's hydraulic or fuel circuit can cause fluid loss, pressure drop, and unplanned stoppages. Replacing with the correct seal keeps fluid circuits fully pressurized and operating properly.

An O-ring is a precision-formed loop of elastomeric material used to create a fluid-tight seal between two mating surfaces or components. In ride-on power trowels, O-rings are used throughout hydraulic circuits, fuel systems, and mechanical assemblies to prevent leaks and maintain the pressure required for proper machine operation. When an O-ring becomes hardened, cracked, or compressed beyond its serviceable range, it loses its ability to seal — leading to fluid leaks, pressure loss, and potential damage to surrounding components. Replacing a worn O-ring promptly with the correct size and material grade, such as the Multiquip 20116 Buna N Size 031, restores the integrity of the sealed joint and prevents further system degradation.

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.