Multiquip 491210 Pipe Plug NPT 1/4

The Multiquip 491210 is a genuine OEM Pipe Plug NPT 1/4 designed for MQ600H, MQ600HTP, MQ600HTB, MQ600TD80-TLRP, and MQ600TD80-TLRB trash pumps, as well as AR13H, AR13HA/HAR, AR13HC, and AR13D ride-on rollers. As a direct OEM part, it is manufactured to the same standards as the original component your equipment left the factory with, ensuring a consistent and dependable fit every time. DHS Equipment sources this part directly through authorized Multiquip channels, so you can order with confidence knowing you are receiving the correct replacement.

Key Features

• OEM-Matched Thread Specification — Manufactured to the exact 1/4 NPT thread profile required by Multiquip, ensuring a leak-free, metal-to-metal seal on first installation.
• Direct Plug-In Replacement — Installs into the existing NPT-threaded port without rethreading, chasing, or adapters — the thread form and taper match the original port geometry.
• Broad Multiquip Fitment — Compatible across MQ600H-series trash pumps and AR13-series ride-on asphalt rollers, covering a wide range of Multiquip equipment in a single part number.
• Fluid System Integrity — A correctly seated pipe plug keeps oil, coolant, or fluid circuits sealed and pressurized; a damaged or missing plug leads to fluid loss, contamination, and potential engine or pump failure.
• Genuine OEM Part — Supplied as a Multiquip OEM component, so thread grade, material, and dimensional tolerances match what was originally specified for these machines.

A pipe plug seals an unused or service-access port in a fluid system — such as an oil gallery, drain passage, or coolant circuit — preventing fluid from escaping and contaminants from entering. On trash pumps and ride-on rollers, these plugs are critical to maintaining correct fluid levels and system pressure throughout operation. When a plug is cracked, cross-threaded, or missing entirely, the result is fluid leakage that can quickly lead to lubrication failure or overheating, putting the entire machine at risk.

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.