The Multiquip 2266240108 Main Jet #77.5 EC12 is a genuine OEM carburetor main jet designed for the Multiquip EC12 concrete mixer. As a direct OEM replacement, this jet is manufactured to the exact size specification — #77.5 — ensuring the correct fuel-to-air metering that the EC12 engine requires for consistent, reliable operation. Sourced directly through an authorized Multiquip parts channel, the part delivers the fit and calibration accuracy that aftermarket jets often cannot match. If your EC12 mixer is running rich, lean, or refusing to idle cleanly, this is the correct replacement jet to restore proper carburetor function.
Key Features
- Exact Jet Sizing — #77.5 Calibration Drilled to the precise #77.5 orifice specification, ensuring correct fuel flow rate through the carburetor circuit without guesswork.
- Genuine OEM Component Supplied as an authentic Multiquip OEM part, manufactured to the same spec as the original jet installed at the factory — not an approximation.
- Direct Carburetor Replacement for EC12 Designed to drop into the EC12 mixer carburetor without modification, matching thread pitch, body diameter, and seat geometry.
- Restores Proper Fuel Metering A worn, clogged, or incorrectly sized main jet disrupts the fuel-air mixture across the RPM range — replacing it with this part restores smooth throttle response and stable engine speed under load.
- Fuel System Integrity Using the correct OEM jet size is critical to avoiding a running engine that's too rich or too lean — both conditions accelerate wear on the engine and can cause hard starts or stalling during mixing operations.
The main jet is a small but critical component inside the carburetor responsible for metering fuel into the engine's air stream at mid to full throttle. The jet's orifice — in this case, #77.5 — is precisely sized to deliver the correct volume of fuel for the engine's displacement and tune. When a main jet becomes clogged with varnish or debris, or is replaced with an incorrect size, the engine will run poorly across the power band, exhibiting symptoms like bogging under load, rough idling, excessive fuel consumption, or black exhaust smoke. Replacing the jet with the correct OEM-spec 2266240108 restores proper combustion and protects the engine from the long-term damage caused by an improper fuel mixture.
Part Details
| Part Number | 2266240108 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Main Jet #77.5 EC12 |
Compatibility & Fitment
| Name | Model |
|---|---|
| EC12 | EC12 |
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.
