Multiquip 520437 Muffler Base Extension

The Multiquip 520437 Muffler Base Extension is a genuine OEM component designed for AR13HA/HAR asphalt ride-on roller equipment. Sourced directly from Multiquip, this part meets the exact specifications of the original component it replaces, ensuring a correct installation without guesswork. It is confirmed to fit AR13HA/HAR series rollers, making it a straightforward, confidence-inspiring choice when servicing your machine. Order part number 520437 from DHS Equipment and keep your roller running as intended.

Key Features

• Genuine OEM Construction — Manufactured to the original material and dimensional specifications of the factory part, so the extension seats, seals, and connects exactly as the original did.
• Direct-Fit Installation — Engineered to bolt onto the existing muffler assembly on AR13HA/HAR rollers without rework or fabrication, using the original mounting points.
• Confirmed Fitment for AR13HA/HAR Rollers — Validated for Multiquip asphalt ride-on roller models in the AR13HA/HAR series, so you can order with confidence.
• Exhaust Integrity Maintained — A correctly fitted muffler base extension keeps exhaust gases routed away from the operator and sensitive engine components, maintaining safe and efficient engine breathing.
• Emissions and Noise Compliance — Replacing a damaged or missing muffler base extension restores the exhaust system to its designed configuration, supporting compliance with noise and emissions requirements on regulated job sites.

The muffler base extension forms the structural link between the engine's exhaust outlet and the muffler body, channeling hot exhaust gases through the system and providing a stable mounting point for the muffler assembly. When this component cracks, corrodes, or separates, exhaust gases can escape before reaching the muffler, resulting in elevated noise levels, increased heat exposure near the engine, and potential operator safety concerns. Replacing a worn or damaged muffler base extension restores the integrity of the full exhaust path, allowing the roller's engine to operate at its intended back-pressure and noise output.

For questions about fitment or to confirm part number 520437 is correct for your specific machine configuration, 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.