The Multiquip 21037 Muffler Support Bracket is a genuine OEM component designed for the HHN31V ride-on power trowel. Sourced directly from Multiquip, this bracket meets the original equipment specification and installs as a direct replacement for the factory part. It is confirmed fitment for the HHN31V, Multiquip's 8-foot heavy-duty mechanical ride-on trowel series.
Key Features
- Genuine OEM Construction — Manufactured to the original material and dimensional specification, ensuring the bracket carries and isolates muffler load the same way the factory-installed part does.
- Direct Bolt-On Replacement — Matches the original mounting points on the HHN31V frame, so installation follows the same procedure as the part it replaces with no rework to surrounding components.
- Confirmed HHN31V Fitment — Verified for the Whiteman HHN31V 8-foot heavy-duty ride-on trowel; use part number 21037 to confirm accuracy before ordering.
- Structural Exhaust Support — Keeps the muffler assembly correctly positioned and anchored during operation; a cracked or missing bracket allows the muffler to shift under vibration, accelerating wear on exhaust connections and surrounding components.
- Corrosion-Resistant Design — Built to withstand the heat cycling and outdoor exposure typical of concrete finishing work, maintaining structural integrity through extended service.
The muffler support bracket secures the exhaust muffler to the machine's frame, absorbing vibration and holding the muffler in its correct position during operation. Without a sound bracket, the muffler is free to move under the engine's vibration, which places stress on exhaust gaskets, flex joints, and mounting hardware — leading to exhaust leaks and accelerated component wear. Replacing a damaged or broken bracket promptly protects the rest of the exhaust system and keeps the trowel running cleanly and safely on the slab.
Part Details
| Part Number | 21037 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Muffler Support Bracket |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HHN31V |
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.
