Multiquip 2276240508 Main Hi Alt Jet #87.5

The Multiquip 2276240508 is a genuine OEM Main Hi Alt Jet #87.5 designed for the EC12 series. As a direct Multiquip OEM component, it is manufactured to the exact specifications required for correct fuel metering in high-altitude operating conditions. This jet is a direct carburetor replacement for EC12 equipment, ensuring the correct air-fuel ratio is maintained when operating at elevation. If you are servicing an EC12 and need to restore proper high-altitude carburetor calibration, part number 2276240508 is the correct OEM choice.

Key Features

• OEM-Spec Fuel Metering — Manufactured to the exact orifice sizing required for correct high-altitude fuel delivery — no guesswork on jet calibration.
• High-Altitude Application — Specifically sized at #87.5 to compensate for reduced air density at elevation, keeping the engine running clean and responsive.
• Direct Carburetor Fit — Threads directly into the carburetor body of EC12 equipment as a drop-in replacement with no modification to surrounding components.
• EC12 Compatibility — Verified fitment for the Multiquip EC12, making it the correct service part when performing a high-altitude carburetor jet swap on that model.
• Engine Protection at Elevation — Running the wrong jet size at altitude causes rich or lean conditions that can lead to fouled plugs, power loss, or engine damage — the correct #87.5 spec prevents these issues.
• Genuine OEM Sourcing — Supplied as an authentic Multiquip OEM part through DHS Equipment, ensuring you receive the exact component specified for the EC12.

A main jet controls how much fuel is delivered through the carburetor at mid-to-high throttle openings. At higher altitudes, thinner air means a standard sea-level jet will over-fuel the engine, causing a rich condition that robs power and increases emissions. A high-altitude jet like the #87.5 has a smaller orifice that restricts fuel flow to match the reduced oxygen content of the air, restoring the correct air-fuel ratio. When this jet becomes worn, damaged, or is incorrectly specified for the operating altitude, the engine will run poorly, idle roughly, or lose usable power under load.

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.

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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.