The Wacker Neuson Main Jet is a genuine OEM component designed for a broad range of Wacker Neuson equipment, including the RD12A-90 tandem roller, CRT48-34V and CT48 series ride-on and walk-behind concrete trowels, BFS series gasoline floor saws, GV5000A and GV5003A portable generators, BPU 5045A and BPU 5545A reversible vibratory plates, and the G7AI and GS12Ai units. As a genuine Wacker Neuson part, the is manufactured to the same specification as the original component, ensuring a correct, trouble-free installation with no guesswork on fitment. This Main Jet serves an extensive cross-section of Wacker Neuson product families, making it a versatile service part to have on hand for fleet operators and service technicians alike.
Key Features
- Calibrated OEM Fuel Metering: — Manufactured to the original carburetor specification, this genuine OEM Main Jet delivers the precise fuel orifice sizing required for correct air-fuel ratio and consistent engine performance across all listed models.
- Drop-In Carburetor Fit: — Engineered to thread directly into the original carburetor body with no re-jetting, adapting, or modifications — installs exactly like the factory original.
- Wide Multi-Family Fitment: — Compatible with the RD12A-90 tandem roller, CRT48-34V and CT48 concrete trowels, BFS gasoline floor saw series, GV5000A/GV5003A portable generators, and BPU 5045A/BPU 5545A reversible vibratory plates.
- Restores Proper Engine Fueling: — A worn or blocked main jet causes rough running, loss of power, and poor fuel economy. Replacing it with the correct OEM-spec jet restores clean throttle response and full rated engine output.
- Fuel System Integrity: — Using the correctly sized main jet is critical for preventing over-rich or over-lean running conditions that can damage engine internals — an important consideration for high-cycle equipment like floor saws and compactors.
The main jet is a small but critical metering component housed inside the carburetor. It controls the volume of fuel drawn into the engine under load by providing a precisely sized orifice through which fuel is metered into the air stream. When the main jet is blocked by debris or varnish deposits, or worn so the orifice is enlarged, the engine will run erratically — symptoms include bogging under load, excessive fuel consumption, black exhaust smoke, or a complete failure to reach operating speed. Replacing a faulty main jet with the correct OEM-spec part like the Wacker Neuson 5000125841 restores proper fueling and returns the engine to its designed power output.
Part Details
| Part Number | 5000125841 |
|---|---|
| Old Part Number | 0125841 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Main Jet |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
| 1220mm/48in Ride-on Trowel | CRT48-34V | 5000620805, 5000620075, 5200004935 |
| CT48-11A Trowel | CT48-11A | 5000009450, 5000620835 |
| CT48-13A-V Trowel | CT48-13A-V | 5000009452, 5000620836 |
| G 7AI | G7AI | 5000009104 |
| BFS 2020AS SAW | BFS 2020AS | 5000620086 |
| GS12Ai | GS12AI | 5000620317 |
| GV5000A | GV5000A | 5000009346, 5000009351, 5000009361, 5000009356, 5100006204 |
| 50Hz Portable Value Generator | GV5003A | 5000009347, 5000009362, 5000009352, 5000009357, 5100002154 |
| Reversible Vibratory Plate, 50 kN, 45cm/18in | BPU 5045A | 5000008545 |
| Basic floor saw, 450mm/18in | BFS 1345AB | 5000008764, 5000610141 |
| BFS 935A SAW,BASIC | BFS 935AB | 5000008910 |
| BFS1350ALS-SAW | BFS 1350ALS | 5000008885, 5000610399 |
| Gasoline Floor Saw, 450 drive, cutmatic | BFS 1345AS | 5000008699 |
| Gasoline Floor Saw, 450 drive, cutmatic | BFS 1345ALS | 5000008700 |
| Gasoline Floor Saw, Ø 500 driv e, cutmatic | BFS 1350AS | 5000008752 |
| BFS1350AL-SAW | BFS 1350AL | 5000008898, 5000610398 |
| BFS 1318AB SAW | BFS 1318AB | 5000610091 |
| BFS 914AB SAW | BFS 914AB | 5000610092 |
| Gasoline Floor Saw, 450 cutmat ic | BFS 1345A | 5000008697 |
| Gasoline Floor Saw, 450 cutmat ic | BFS 1345AL | 5000008698 |
| Gasoline Floor Saw, Ø 500 cutm atic | BFS 1350A | 5000008751 |
| BFS 1345 SAW,ABZ | BFS 1345ABZ | 5000610242 |
| Gasoline Floor Saw, 350 cutmat ic | BFS 935A | 5000008694 |
| Gasoline Floor Saw, 350 cutmat ic | BFS 935AL | 5000008695 |
| Gasoline Floor Saw, 350 cutmat ic | BFS 1335A | 5000008696 |
| Petrol Floor Saw BFS 940A | BFS 940A | 5000610327 |
| BPU5545A-VIBROPLATE | BPU 5545A | 5000610346 |
| Vibratory Plate BPU 5545A US | BPU 5545A US | 5100000678 |
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.
