The Multiquip 12617 Muffler is a genuine OEM component designed for STX55J6 and STX55Y6 Whiteman ride-on power trowels. As a direct OEM replacement, this muffler is built to the exact specifications of the original part, ensuring a proper fit and correct exhaust function on the machines it serves. Sourced directly through authorized channels, the Multiquip 12617 is the dependable choice when it is time to restore your trowel to full working condition. Confirm your model code against STX55J6 or STX55Y6 before ordering to ensure compatibility.
Key Features
- Genuine OEM Construction — Manufactured to the same exhaust flow and heat-dissipation specifications as the original muffler, maintaining proper engine back-pressure on your trowel.
- Direct Bolt-On Replacement — Matches the original mounting configuration of the STX55J6 and STX55Y6, allowing straightforward removal and reinstallation without fabrication or adaptation.
- Confirmed Fitment — Verified for STX55J6 and STX55Y6 Whiteman super-sized hydrostatic ride-on trowels; always cross-reference your model code before ordering.
- Restored Exhaust Performance — A worn or cracked muffler allows uncontrolled exhaust to escape, increasing noise levels and reducing engine efficiency; replacing it restores proper sound attenuation and engine breathing.
- Operator Safety Compliance — A correctly sealed muffler prevents hot exhaust gases from escaping near the operator or adjacent components, an important consideration on ride-on finishing equipment.
The muffler is responsible for directing exhaust gases away from the engine and reducing the noise produced during combustion. On a ride-on power trowel like the STX55 series, a functioning muffler also plays a role in maintaining correct engine back-pressure, which affects combustion efficiency and overall power output. When a muffler cracks, corrodes, or loses its seal, operators will notice increased exhaust noise, potential heat damage to surrounding components, and a drop in engine performance — all signs that replacement is needed promptly.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment team for assistance.
Part Details
| Part Number | 12617 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Muffler |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | STX55Y6 |
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.
