The Wacker Neuson Jet is a genuine OEM component designed for a wide range of Wacker Neuson equipment, including CT36-9 and CT48-9 walk-behind concrete power trowels, BFS and BFSX floor saws, GP4000 and GPi4300 portable generators, and PT3 trash pumps. As a factory-sourced part, the meets the exact specifications set by Wacker Neuson for fuel system performance and consistency across these machine families. This jet is a direct replacement for the original component, ensuring the carburetor delivers the correct air-fuel mixture under the operating conditions each machine demands. Confirm your model number before ordering to ensure compatibility with your specific unit.
Key Features
- Calibrated Fuel Metering: — Manufactured to OEM specification, this jet maintains the precise orifice sizing required for correct fuel delivery — critical to keeping combustion consistent and preventing rich or lean running conditions.
- Genuine OEM Sourcing: — The 5000156621 is a factory-authorized Wacker Neuson part, produced to the same standards as the original component installed at the time of manufacture.
- Broad Cross-Family Fitment: — Compatible with CT36-9 and CT48-9 concrete trowels, BFS and BFSX floor saws, GP4000, GPi4300, and GPSi4300 generators, BPU 3050 reversible vibratory plate compactors, and PT3 trash pumps — a single part number serving multiple equipment lines.
- Drop-In Carburetor Replacement: — Threads directly into the carburetor body in place of the original jet, requiring no modification to surrounding fuel system components.
- Protects Engine Performance: — A worn or clogged jet restricts or floods fuel flow, causing hard starting, rough idling, power loss, and potential engine damage. Replacing it restores proper combustion and full-rated output.
- Fuel System Integrity: — Using the correct OEM jet prevents unmetered fuel delivery that could damage engine internals or create unsafe operating conditions in fuel-adjacent environments.
A carburetor jet is a small, precisely drilled metering component that controls the volume of fuel delivered into the carburetor's venturi and mixing circuit. The diameter of the jet's orifice is calibrated specifically for the engine's displacement, compression, and intended operating range — even a small deviation causes measurable changes in the air-fuel ratio. Over time, jets can become partially blocked by fuel varnish and debris, or physically worn, leading to symptoms such as erratic idling, loss of power under load, excessive fuel consumption, or an engine that refuses to start. Replacing a failed or contaminated jet with the correct OEM part, such as the Wacker Neuson 5000156621, restores the carburetor to its intended calibration and brings engine performance back to spec.
Part Details
| Part Number | 5000156621 |
|---|---|
| Old Part Number | 0156621 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Jet |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT36-9-V Trowel | CT36-9-V | 5000009447, 5000620834 |
| CT36-9 Trowel | CT36-9 | 5000009444, 5000620833 |
| CT48-9 Trowel | CT48-9 | 5000009453, 5000620838 |
| Premium Portable Generator | GP4000 | 5000620090, 5000620380, 5000620977, 5000620978, 5000620089 |
| PT3 Pump | PT3 | 5000009321, 5000009322, 5000009323 |
| BFS 935 SAW,BASIC | BFS 935B | 5000008911 |
| Floor Saw | BFS16 | 5000630098 |
| Gasoline Reversible Vibratory Plate | BPU 3050 | 5000008955 |
| Floor Saw | BFS 90R | 5000009522 |
| Floor Saw | BFSX 90R | 5000009525 |
| BFS 914B SAW | BFS 914B | 5000610093 |
| Petrol Floor Saw BFS 940W | BFS 940W | 5000610328, 5100004005 |
| Floor Saw | BFSX16 | 5000630248 |
| GPi4300 | GPi4300 | 5000620962, 5000620782, 5000620784 |
| GPSi4300 | GPSi4300 | 5000620963, 5000620783, 5000620937 |
| Floor Saw | BFS 914W | 5100004003 |
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.
