Multiquip 491701 Zerk Fitting

The Multiquip 491701 Zerk Fitting is a genuine OEM grease fitting designed for AR-series asphalt rollers and LS-series concrete pumps. As a direct OEM replacement, this fitting delivers the correct thread form, seat angle, and grease-flow characteristics specified for these machines — ensuring grease reaches bearings, pivot points, and wear surfaces exactly as intended. Compatible models include AR13D, AR13HA, AR13HAR, AR13H, AR13HC, AR14H, LS300GK, LS300G, LS300P, LS300, LS400, LS500, LS600, LS600P, LS40D, LS40TD, LS50TD, and LS60TD. Sourced directly from Multiquip, part number 491701 is the correct specification for maintaining your lubrication intervals without improvising with mismatched hardware.

Key Features

• OEM Thread and Seat Accuracy — Genuine Multiquip fitment means the correct thread pitch and grease-valve seat angle, so the grease gun seats fully and delivers consistent flow without bypass or blow-off.
• Direct Swap Installation — Threads directly into existing ports on AR-series roller and LS-series pump grease points with no reworking of the housing or port threads required.
• Broad Model Coverage — A single part number covers AR13D, AR13H, AR13HA, AR13HAR, AR13HC, AR14H, LS300GK, LS300, LS300G, LS300P, LS400, LS500, LS600, LS600P, LS40D, LS40TD, LS50TD, and LS60TD.
• Protects High-Wear Components — A properly functioning Zerk fitting is the gateway for all scheduled lubrication; a clogged, cross-threaded, or wrong-spec fitting starves bearings and pivot pins of grease, accelerating wear across critical assemblies.
• Genuine OEM Part — Supplied by Multiquip to the same specification as the original, so lubrication system integrity is maintained throughout the service life of the equipment.

A Zerk fitting — also called a grease nipple — is a small but essential component in any machine's lubrication system. It accepts the nozzle of a grease gun and contains a spring-loaded check ball that allows grease to be injected under pressure into a bearing, bushing, or pivot joint, then seals automatically to prevent contamination from entering. When a Zerk fitting is damaged, clogged, or the wrong thread specification, grease cannot reach the surfaces it protects, leading to accelerated wear, overheating, and eventual failure of the components it serves. Using the correct OEM-spec fitting ensures the check valve seats properly with your grease gun coupler and that grease flows at the right pressure to reach every part of the lubrication point.

For questions about fitment or to confirm compatibility with your specific machine serial number, contact the DHS Equipment team before ordering.

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.