Multiquip

Multiquip 803665 Muffler

$1,633.50
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SKU:
803665-Multiquip
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The Multiquip 803665 Muffler is a genuine OEM component designed for the LS300P hydraulic-driven concrete pump. As an original equipment part, it is manufactured to the exact specifications required for proper exhaust flow and noise reduction on your machine. This muffler is a direct replacement for the LS300P, ensuring a correct fit without the guesswork. Keep your concrete pump running at its best by replacing worn or damaged exhaust components with the factory-correct part.

Key Features

  • Genuine OEM Construction — Manufactured to the same exhaust flow and heat-tolerance specifications as the original, ensuring proper combustion gas evacuation on the LS300P concrete pump engine.
  • Direct Bolt-On Replacement — Matches the original mounting configuration and outlet dimensions of the LS300P, so installation is straightforward using standard hand tools.
  • Confirmed LS300P Fitment — Verified for the Multiquip LS300P hydraulic-driven concrete pump; cross-reference part number 803665 before ordering to confirm compatibility.
  • Exhaust Integrity Maintained — A sound muffler keeps exhaust gases routed safely away from the operator and engine components, preventing overheating and carbon buildup that a cracked or failed unit can cause.
  • Operator Safety Compliance — Proper exhaust containment and noise attenuation are critical on a concrete pump operating in enclosed or semi-enclosed pour environments; this genuine part maintains that standard.

The muffler on a concrete pump engine is responsible for directing hot exhaust gases safely away from the machine while dampening combustion noise to acceptable operating levels. It plays a direct role in protecting the engine's exhaust valves and surrounding components from backpressure and heat damage. When a muffler cracks, corrodes, or becomes blocked, exhaust restriction can cause the engine to run poorly, overheat, or produce dangerous levels of noise and fumes at the worksite.

Part Details

Part Number803665
BrandMultiquip
Part TypeGenuine OEM
DescriptionMuffler

Compatibility & Fitment

Name Model
Mayco Pumps LS300P

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.