Multiquip 90003ZH8003 Setting Screw

The Multiquip 90003ZH8003 is a genuine OEM Setting Screw designed for a wide range of Multiquip, Whiteman, Essick, and STOW equipment across multiple product families. As a direct OEM replacement, part 90003ZH8003 meets the original design intent and material specification for every machine it supports. This screw is confirmed for use across rammer models including MTX50HD, MTX70HD, MTX70HDR, MTX80HDR, MTX60HD, and MTR40HF; plate compactors including MVC-64H, MVC-70H, MVC-88GH, MVC-88GHW, MVC90H, MVH-120GH, MVH-150GH, MVH-150D, and MVC40H; mixers including MC-42S, MC-64S, WM-70S, WM-70P, EM-70S, and CMS-44S; masonry saws including MP1455H, MP1415E, and TRAK-14; and additional families covering pumps, concrete saws, and walk-behind trowels. Always verify your model and serial number against the Multiquip parts diagram before ordering.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's original material and dimensional specification, ensuring the screw seats, torques, and retains components exactly as designed across all supported equipment families.
• Drop-In Replacement — Shares the identical thread form, head style, and drive type as the factory-installed fastener, so installation requires only standard hand tools with no rework to mounting surfaces.
• Broad Cross-Family Compatibility — A single part number, 90003ZH8003, covering rammers (MTX and MTR series), plate compactors (MVC and MVH series), concrete and mortar mixers, masonry saws, pumps, and walk-behind trowels across Multiquip, Whiteman, Essick, and STOW brands.
• Secure Component Retention — A correctly installed Setting Screw locks adjustable or removable assemblies in their calibrated position; a worn, stripped, or missing screw allows unwanted movement that leads to accelerated wear and misalignment of adjacent components.
• Fuel and Fluid System Safety — On models where this screw is used in carburetor, pump, or fuel-adjacent assemblies, using the correct OEM fastener ensures rated clamping load is maintained and the risk of loosening under vibration is minimized.

A Setting Screw is a small-diameter fastener used to lock a component — such as a carburetor adjustment needle, a shaft collar, or a housing cover — firmly in its intended position without the use of a nut on the opposite side. Unlike a standard bolt, a setting screw bears entirely on the surface it contacts, relying on precise thread engagement and correct torque to hold assemblies in alignment under vibration and load. When a setting screw becomes stripped, corroded, or missing, the part it secures can shift or back out during operation, causing misadjustment, increased wear, or loss of function in the affected system.

Confirm fitment using your equipment's model number and parts manual before ordering. For assistance identifying the correct part for your machine, contact DHS Equipment.

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.