The Multiquip 48631-SK Muffler Assembly MD105 is a genuine OEM component designed for the MD105 mid-sized hydrostatic ride-on power trowel. Sourced directly from Multiquip, this assembly matches the exact configuration of the original exhaust system fitted at the factory. Contractors running the MD105 can install this part with confidence, knowing it corresponds precisely to the machine's exhaust outlet geometry and mounting points. Keep a verified OEM part on hand to avoid unscheduled service interruptions during finishing operations.
Key Features
- Genuine OEM Exhaust Integrity — Manufactured to the same combustion exhaust flow and backpressure specifications as the original unit, preserving engine efficiency on the MD105.
- Direct Bolt-On Installation — Matches the OEM mounting flange and outlet dimensions of the MD105 exhaust system, so the assembly seats correctly without modification to existing brackets or hardware.
- MD105 Specific Fitment — Engineered exclusively for the MD105 mid-sized hydrostatic ride-on power trowel; use part number 48631-SK to confirm correct application before ordering.
- Engine Protection Through Proper Exhaust Flow — A correctly functioning muffler assembly maintains designed exhaust backpressure levels; a cracked, corroded, or leaking muffler can cause elevated engine temperatures and power loss during troweling operations.
- Operator Safety Compliance — An intact OEM muffler assembly contains and directs exhaust gases away from the operator — a critical consideration on a ride-on finishing machine where the operator sits directly above the engine compartment.
The muffler assembly collects hot exhaust gases produced during combustion and routes them safely away from the engine and operator while reducing noise output to a manageable level. On a hydrostatic ride-on trowel like the MD105, the muffler also plays a role in maintaining the correct exhaust backpressure that the engine's power output is tuned around — too little restriction from a damaged unit can affect throttle response and fuel efficiency. When a muffler assembly cracks, corrodes, or loses its sealing integrity, it can expose the operator to exhaust fumes and cause the engine to run hotter than intended, shortening service life.
Need help confirming this part fits your machine? Contact the DHS Equipment parts team with your model and serial number for fast verification.
Part Details
| Part Number | 48631-SK |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Muffler Assembly MD105 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Hydraulic Ride-On Power Trowels | MD105 |
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.
