Multiquip 1612 Throttle Adjustment Screw

The Multiquip 1612 is a genuine OEM Throttle Adjustment Screw designed for a wide range of Multiquip, Whiteman, and Essick equipment across multiple product families. As a factory-sourced component, it is manufactured to the exact tolerances required for proper throttle response and engine speed control. This screw is confirmed for use on rammers including the MT85, MTX60HF, MTX70HF, and MTR40HF; plate compactors including the MVC82VHW, MVC88VTHW, MVH208GH, MVH308GH, MVH408GH, MVB85H, and MVC40H; walk-behind and ride-on trowels including the CA4HM, JWN24HTCSL, HHN34TVD, and HTN28K; concrete and mortar mixers including the MC94P/S, WM70S/P, WM120SH, and EM120S Series; rollers including the MRH800GS, V305EH, and AR14H; centrifugal and trash pumps including the QP205SH, QP402H, and QP3TH; saws including the SP118, MP2H, and MP1H; gasoline generators and welders including the GA3.6HR, GAW180HE, and DAC7000SS; and concrete vibrators including the G55H. Sourcing part number 1612 directly ensures you receive the correct OEM component without substitution or fitment guesswork.

Key Features

• Genuine OEM Throttle Calibration — Manufactured to Multiquip's original thread pitch and head geometry, ensuring the screw seats and adjusts exactly as intended for accurate engine speed control.
• Drop-In Installation — Threads directly into the existing carburetor or throttle body mounting point with no rework needed, matching the original hardware specification.
• Broad Cross-Family Fitment — A single verified part number covering rammers (MT85, MTX70HF), plate compactors (MVC82VHW, MVH308GH), trowels (CA4HM, HHN34TVD), mixers (WM70S/P, MC94P/S), rollers (MRH800GS, V305EH), pumps (QP402H, QP3TH), saws (SP118, MP2H), generators (GA3.6HR, DAC7000SS), and vibrators (G55H).
• Precise Idle and RPM Control — A correctly set throttle adjustment screw allows the engine to hold steady idle and reach the proper operating RPM. A worn, stripped, or missing screw causes erratic idle, power loss, or inability to govern engine speed.
• Fuel System Safety — Proper throttle screw seating prevents uncontrolled engine racing, which is especially critical on equipment operating near personnel or in enclosed work areas.

The throttle adjustment screw is a small but functionally critical component in a carburetor or throttle linkage assembly. It sets the baseline position of the throttle plate or fuel needle, directly controlling idle speed and the engine's ability to transition smoothly to working RPM. When this screw becomes stripped, corroded, or loses its thread engagement, the engine loses the reference point needed to maintain a steady idle — resulting in stalling, surging, or runaway RPM that can damage internal engine components and create unsafe operating conditions.

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.