The Wacker Neuson Main Jet Nozzle is a genuine OEM component designed for the WP1550RW and WP1550R vibratory plate compactors as well as PT2R centrifugal trash pumps. Sourced directly from Wacker Neuson, this part meets the original engineering specifications for the carburetor fuel circuit on these machines. Verified fitment across the WP1550 series and PT2R models makes the a straightforward, confidence-inspiring choice when sourcing a replacement. Keep this part number on hand — a worn or clogged main jet nozzle directly affects fuel metering and engine performance across every operating condition.
Key Features
- Correct Fuel Metering Geometry — As a genuine OEM part, the 5000084400 is manufactured to the exact orifice specification of the original, ensuring the carburetor delivers the right air-fuel ratio under load.
- Drop-In Carburetor Fit — Designed to seat and seal exactly as the factory-installed nozzle, with no reworking of the carburetor bore or fuel passages required.
- Broad WP and PT Series Compatibility — Confirmed fitment for WP1550RW and WP1550R vibratory plate compactors and PT2R centrifugal trash pumps, covering multiple machine configurations within those families.
- Protects Against Hard-Start and Power Loss — A damaged or partially blocked main jet nozzle causes lean running, erratic throttle response, and hard starts; replacing it restores consistent engine output and smooth acceleration.
- Fuel System Integrity — Using the correct OEM nozzle ensures the fuel circuit operates within its designed parameters, helping prevent downstream carburetor wear caused by improper mixture delivery.
The main jet nozzle is the precision metering point inside the carburetor responsible for controlling how much fuel enters the airstream at mid-range and full throttle. Its calibrated orifice size determines the fuel-to-air mixture the engine receives under load — get it wrong and the engine runs lean, overheats, loses power, or refuses to start cleanly. Over time, fuel varnish deposits, debris, or physical wear can enlarge or partially block the orifice, throwing the mixture off spec. Replacing a faulty main jet nozzle with a correctly sized OEM part is one of the most direct ways to restore crisp throttle response and full-power operation to a small engine.
Part Details
| Part Number | 5000084400 |
|---|---|
| Old Part Number | 0084400 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Main Jet Nozzle |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Vibratory Plate, 15 kN, 500mm/ 19.5in | WP1550RW | 5000007578 |
| Vibratory Plate, 15 kN, 500mm/ 19.5in | WP1550R | 5000007581 |
| 50mm/2in Centrifugal Trash Pum p | PT2R | 5000007160, 5000006790 |
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.
