The Wacker Neuson Main Jet is a genuine OEM component designed for the RD7Af HRC and RD7Afb HRC reversible vibratory rollers. As a direct Wacker Neuson OEM part, it is manufactured to the exact tolerances required to maintain correct fuel metering in the carburetor. Sourcing the correct main jet by part number ensures the carburetor delivers the right air-fuel mixture for consistent, clean engine operation across both RD7Af HRC series machines.
Key Features
- Exact Fuel Flow Calibration — Manufactured to OEM specification orifice sizing, ensuring the correct fuel delivery rate through the carburetor circuit.
- Direct Carburetor Drop-In — Threaded to match the original carburetor body on RD7Af HRC and RD7Afb HRC models, seating and torquing just like the factory-installed component.
- Confirmed Fitment for RD7Af HRC Series — Verified for the RD7Af HRC and RD7Afb HRC reversible drum rollers, covering both machine configurations in this series.
- Protects Engine Performance — A correctly sized main jet keeps the engine running at the right mixture ratio, preventing lean running, overheating, or black-smoke rich conditions that shorten engine life.
- Fuel System Integrity — Using the genuine OEM jet maintains correct emissions calibration and prevents the lean fuel conditions that can cause engine damage or erratic throttle response on compact roller equipment.
The main jet is a small but critical brass metering component housed inside the carburetor. Its precisely drilled orifice controls how much fuel is drawn into the engine under load, directly determining the air-fuel mixture the engine receives during normal operation. When a main jet becomes clogged, worn, or is replaced with an incorrectly sized part, the engine will run either too lean or too rich — symptoms include rough idling, loss of power, overheating, or excessive fuel consumption. Replacing a damaged or blocked jet with the correct OEM part restores the carburetor to its designed operating condition and protects the engine from mixture-related wear.
Part Details
| Part Number | 5100059879 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Main Jet |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD7Af HRC | RD7Af HRC | 5100006342 |
| RD7Afb HRC | RD7Afb HRC | 5100006347 |
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.
