Multiquip EM491701 Zerk Fitting

The Multiquip EM491701 Zerk Fitting is a genuine OEM grease fitting designed for AR series asphalt ride-on rollers and LS series hydraulic concrete pumps. This small but critical lubrication component serves a wide range of Multiquip equipment, including AR13D, AR13H, AR13HA/HAR, AR13HC, AR14H, LS300GK, LS300P, LS600P, LS400, LS500, LS40D, LS40TD, LS50TD, LS60TD, and additional LS series pump models. As a genuine OEM part, EM491701 is manufactured to the same standard as the original component installed at the factory, ensuring a direct match for threading, head size, and grease flow characteristics. Sourced through DHS Equipment, this fitting is the correct replacement when servicing lubrication points across these machine families.

Key Features

• Genuine OEM Grease Flow Spec — Manufactured to the original thread pitch and ball-check design, ensuring full grease passage without bypassing or back-pressure under normal greasing cycles.
• Direct Thread Replacement — Matches the original thread size and hex profile for tool-driven installation without chasing or re-tapping the grease port.
• Broad AR and LS Series Coverage — Fits AR13D, AR13H, AR13HA/HAR, AR13HC, AR14H, LS300GK, LS300P, LS600P, LS400, LS500, LS40D, LS40TD, LS50TD, LS60TD, and additional LS series models.
• Protects Bearings and Pivots — A functioning Zerk fitting is what allows grease to reach load-bearing surfaces; a seized or damaged fitting starves those surfaces of lubrication and accelerates wear.
• Genuine OEM Part Number — Part number EM491701 cross-references directly to the Multiquip parts catalog, eliminating guesswork when ordering service components.

A Zerk fitting — also called a grease nipple or grease fitting — is a small threaded valve installed at lubrication points throughout heavy equipment. It accepts a grease gun coupler and allows technicians to inject grease directly into bearings, pivots, and other moving interfaces under pressure. When a Zerk fitting becomes corroded, stripped, or clogged, grease cannot enter the lubrication point, leaving metal surfaces to run dry and wear prematurely. Replacing a damaged fitting promptly is one of the most straightforward and cost-effective steps in a routine equipment maintenance schedule.

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.