Multiquip EM513110 1/4-20 Rubber Muffler Bushing

The Multiquip EM513110 is a genuine OEM 1/4-20 Rubber Muffler Bushing designed for Mayco concrete pump models including C30HDNI, C30HDN, C30HDG, and C30HDGA. As a direct OEM replacement sourced through Multiquip's authorized parts network, this bushing is built to the exact specification of the original component it replaces. Verified fitment covers the C30HD-series concrete pump family, including Precision, Zenith, and standard NI variants. Order EM513110 with confidence knowing you are installing the correct OEM part for your machine.

Key Features

• Genuine OEM Rubber Compound: — Molded from the same rubber formulation as the original, maintaining the correct vibration-damping and heat-resistance properties needed at the muffler mounting point.
• Correct 1/4-20 Thread Engagement: — Sized to match the 1/4-20 threaded fastener interface on the muffler assembly, allowing direct installation without modification to surrounding hardware.
• Confirmed C30HD-Series Fitment: — Verified for C30HDNI, C30HDNI Precision, C30HDNI Zenith, C30HDN, C30HDG, and C30HDGA Mayco concrete pumps.
• Muffler Retention Integrity: — A properly functioning rubber bushing absorbs engine vibration at the exhaust mounting point, preventing metal-to-metal contact that accelerates wear on the muffler and surrounding components.
• Exhaust System Safety: — A cracked or missing muffler bushing can allow the muffler to shift or loosen during operation, creating a burn or exhaust exposure hazard for the operator — replacing it promptly is a straightforward safety measure.

The rubber muffler bushing is a small but critical component in the exhaust mounting system of a concrete pump engine. It sits between the muffler fastener and the muffler bracket or housing, isolating metal surfaces from direct contact and absorbing the constant vibration generated during pump operation. When this bushing deteriorates, cracks, or breaks apart, the muffler can shift out of position, leading to increased noise, accelerated corrosion at the mounting point, and potential exhaust leakage near the operator. Replacing a worn EM513110 bushing restores secure muffler retention and keeps the exhaust system performing as intended.

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.