The Multiquip 16166ZM7003 Main Nozzle is a genuine OEM component designed for the BP-25H gasoline backpack flex-shaft vibrator. As a direct OEM replacement, this nozzle is manufactured to the exact specifications required by the BP-25H, ensuring correct fuel metering and consistent engine operation. Sourced directly through Multiquip's authorized parts network, 16166ZM7003 is the correct replacement when the original nozzle is worn, clogged, or damaged. If your BP-25H is running rough, flooding, or struggling to maintain consistent power, the main nozzle is a key place to start.
Key Features
- OEM Fuel Circuit Accuracy — Manufactured to the same specification as the original, ensuring correct fuel-to-air ratio delivery through the carburetor circuit.
- Drop-In Carburetor Fit — Installs directly into the OEM carburetor bore on the BP-25H with no reworking or adaptation of the fuel system.
- Confirmed BP-25H Compatibility — Validated for use on the BP-25H gasoline backpack flex-shaft vibrator, taking the guesswork out of parts sourcing.
- Restores Consistent Engine Performance — A worn or blocked main nozzle disrupts fuel delivery and causes rough running, surging, or hard starts; replacing it brings the engine back to smooth, responsive operation.
- Fuel System Integrity — A correctly seated OEM nozzle maintains the sealed fuel passages needed to prevent lean-running conditions that can cause premature engine wear.
The main nozzle is a precision-drilled jet located inside the carburetor that meters the volume of fuel delivered into the engine's air stream during normal running. Its calibrated orifice controls the fuel-to-air mixture, which directly determines how cleanly and consistently the engine runs under load. When the nozzle becomes clogged with varnish or debris, or wears beyond its original tolerance, the engine will typically surge, run lean, lose power, or refuse to start — replacing it is one of the most effective carburetor service steps for restoring full engine output.
Part Details
| Part Number | 16166ZM7003 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Main Nozzle |
Compatibility & Fitment
| Name | Model |
|---|---|
| Gasoline Backpack Vibrator | BP-25H |
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.
