Multiquip 48621 Front/Right Exhaust Manifold

The Multiquip 48621 Front/Right Exhaust Manifold is a genuine OEM component designed for the MD105 hydraulic ride-on power trowel. As a direct OEM replacement, this manifold is produced to the same specifications as the original part, ensuring a correct, trouble-free installation on your MD105. Sourced directly through authorized Multiquip supply channels, part number 48621 gives you confidence that you are installing the right component the first time.

Key Features

• OEM-Matched Exhaust Porting: — Cast and machined to match the original exhaust port geometry of the MD105 engine, maintaining proper gas flow and back-pressure balance.
• Direct Bolt-On Fit: — Mounting flanges and bolt patterns align exactly with the MD105 engine block, so installation requires no reworking of existing hardware or mating surfaces.
• MD105 Series Compatibility: — Confirmed fitment for the MD105 mid-sized hydraulic ride-on power trowel; verify your model code before ordering to ensure accuracy.
• Sustained Engine Efficiency: — A correctly sealed and structurally sound exhaust manifold keeps combustion gases routed away from the engine bay, preserving consistent engine output during extended finishing runs.
• Exhaust Integrity and Operator Safety: — A cracked or leaking manifold can allow hot exhaust gases to escape near the operator platform and fuel system components; replacing a failed manifold promptly is essential for safe machine operation.

The exhaust manifold collects burned combustion gases from the engine's cylinders and channels them into the exhaust system and away from the machine. On a ride-on power trowel like the MD105, the engine works continuously under load, and the manifold is subject to significant thermal cycling — expanding and contracting with every heat-up and cool-down cycle. Over time, this stress can cause cracking, warping, or gasket failure, leading to exhaust leaks that rob the engine of efficiency, increase noise, and create a heat hazard near other components. Replacing a damaged manifold with a genuine Multiquip 48621 restores proper exhaust sealing and keeps the engine performing as intended.

For fitment questions or to confirm this part is correct for your MD105 serial number range, contact the DHS Equipment team directly.

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.