Multiquip 99101ZH70850 Main Jet #85 Optional

The Multiquip 99101ZH70850 Main Jet #85 Optional is a genuine OEM carburetor jet designed for QP402H centrifugal pumps and WM70S/P, MC64P/S, MC94P/S, and MC94SK/MC94PK Whiteman and Multiquip mixer models. Sourced directly from Multiquip, this jet delivers the exact fuel metering calibration the original carburetor was designed around, ensuring the engine runs at the correct air-fuel ratio under load. Verify your carburetor specification and engine configuration before ordering, as this is an optional jet size intended for specific tuning applications. DHS Equipment stocks genuine Multiquip OEM parts so you can get the right component the first time.

Key Features

• OEM-Calibrated Fuel Metering: — Sized to #85 specification, this jet delivers the precise fuel flow rate required for proper carburetor tuning on Honda-powered equipment in the Multiquip lineup.
• Direct Carburetor Drop-In: — Engineered to thread directly into the compatible carburetor body with no machining or adaptation — seats and seals exactly as the original jet did.
• Broad Multiquip Fitment: — Compatible with QP402H centrifugal pumps, WM70S/P Whiteman mortar mixers, MC64P/S, MC94P/S, and MC94SK/MC94PK Multiquip concrete mixers.
• Corrects Rich or Lean Running Conditions: — Installing the correctly sized main jet eliminates hard starting, rough idle, and power loss caused by an improperly calibrated or worn-out jet orifice.
• Genuine Multiquip OEM Component: — Manufactured to the same tolerances as the original part, maintaining the carburetor's designed fuel delivery performance across the RPM range.

The main jet is a precision-machined orifice inside the carburetor that controls the volume of fuel delivered to the engine under mid to full throttle. The orifice diameter — in this case, #85 — is calibrated to match the engine's air intake volume, ensuring the correct air-fuel mixture for efficient combustion. When a main jet becomes worn, clogged, or is the wrong size for the application, the engine will run lean or rich, resulting in power loss, excessive fuel consumption, overheating, or difficulty starting. Replacing a damaged or incorrect jet with the properly sized OEM component restores stable engine operation and protects internal engine components from the damage caused by prolonged lean running.

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.