The Wacker Neuson Main Jet is a genuine OEM component designed for the CT36-8A and CT48-8A walk-behind concrete power trowels and the PT3A centrifugal trash pump series. As a direct factory replacement, this main jet ensures the correct fuel metering your engine depends on to start reliably and run at peak efficiency. Wacker Neuson genuine OEM parts are manufactured to the exact tolerances of the original, so you can install the with confidence and get your equipment back to work without guesswork. Compatible machines include the CT36-8A, CT36-8A-V, CT48-8A, CT48-8A EU trowels, and PT3A pump variants.
Key Features
- Calibrated Fuel Metering: — Manufactured to the precise orifice diameter of the original, ensuring the correct air-fuel mixture for consistent engine starts and smooth throttle response.
- Genuine OEM Quality: — Sourced directly from Wacker Neuson, this main jet meets the exact material and dimensional specifications of the part it replaces — no compromise on fit or function.
- Drop-In Carburetor Replacement: — Threads directly into the carburetor body on compatible CT36-8A, CT36-8A-V, CT48-8A, and PT3A models — same thread pitch and seat geometry as the original.
- Broad Model Coverage: — Fits CT36-8A and CT36-8A-V walk-behind power trowels, CT48-8A and CT48-8A EU trowels, and PT3A 75mm/3-inch centrifugal trash pumps across multiple serial ranges.
- Restored Engine Performance: — A worn or clogged main jet starves the engine of fuel at mid-to-high throttle, causing surging, power loss, or hard starting. Replacing it restores clean, stable fuel delivery.
- Fuel System Integrity: — Correct jet sizing prevents running lean conditions that can cause overheating and premature engine wear on demanding trowel and pump applications.
The main jet is a small but critical component inside the carburetor that controls the volume of fuel delivered to the engine under normal operating load. It works by metering fuel through a precisely sized orifice — if that orifice is blocked by debris or varnish, or worn to an incorrect diameter, the engine will run lean, surge under load, lose power, or fail to reach full operating speed. On concrete trowels like the CT36-8A and CT48-8A, this directly affects finishing consistency and blade speed; on trash pumps like the PT3A, it impacts priming ability and sustained flow output. Replacing a faulty main jet with a genuine OEM 5100000582 restores correct carburetion and full engine output.
Part Details
| Part Number | 5100000582 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Main Jet |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT36-8A-V | CT36-8A-V | 5000620832, 5000009442 |
| CT36-8A Trowel | CT36-8A | 5000009439, 5000620831 |
| CT48-8A Trowel | CT48-8A | 5000009449 |
| CT48-8A | CT48-8A EU | 5000620837 |
| 75mm/3in Centrifugal Trash Pum p | PT3A | 5000009098, 5000009101, 5000009240, 5000620800 |
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.
