The Wacker Neuson is a genuine OEM Oil Pump Rotor Outer designed for a range of Wacker Neuson ride-on concrete trowels, tandem rollers, floor saws, and portable generators. As a direct OEM component, part is manufactured to the same tolerances and material specifications as the original part it replaces, ensuring correct fit and consistent oil flow performance. Compatible equipment includes the CRT36-24A ride-on trowel series, RD12A-90 and RD11A tandem rollers, the BFS 2020AS floor saw, and the GS12Ai portable generator, among others.
Key Features
- OEM Rotor Geometry: — Manufactured to exact dimensional tolerances so rotor-to-housing clearance maintains correct oil pressure and volume across all operating speeds.
- Direct-Fit Replacement: — Designed to seat directly into the original oil pump housing with no rework to mating surfaces or pump cavities required.
- Broad Fitment Coverage: — Verified for the CRT36-24A ride-on trowel series, RD12A-90 and RD11A tandem rollers, BFS 2020AS floor saw, and GS12Ai portable generator.
- Sustained Lubrication Integrity: — A correctly dimensioned outer rotor maintains consistent oil displacement per revolution, protecting engine and drivetrain components from oil starvation wear.
- Fuel System Safety Relevance: — In generator and engine applications, a worn or damaged oil pump rotor can cause sudden loss of oil pressure, risking engine seizure; replacing with a genuine OEM rotor restores safe operating margins.
The outer oil pump rotor works together with the inner rotor to displace engine oil from the sump and push it through the lubrication circuit under pressure. As the two rotors turn on offset centers, the changing volume between their lobes draws oil in and forces it out to bearings, journals, and other critical moving parts. When the outer rotor wears, loses its profile, or becomes damaged, oil pressure drops, lubrication becomes uneven, and internal engine components begin to run dry — leading to accelerated wear or catastrophic failure if not addressed promptly.
Part Details
| Part Number | 5000151834 |
|---|---|
| Old Part Number | 0151834 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Pump Rotor Outer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 915mm/36in Ride-On Trowel | CRT36-24A | 5000620080, 5000620299, 5000620802 |
| RD12A-90 Tandem Roller | RD12A-90 | 5000620058, 5000620320, 5000620369 |
| BFS 2020AS SAW | BFS 2020AS | 5000620086 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11AEC | 5000007695 |
| 915mm/36in Ride-On High Speed Trowel | CRT36-24A-H | 5000009232 |
| Hydrostatic Double Drum Vibrat ory Roller | RD11A | 5000007693 |
| Ride-on Trowel | CRT36-24A-E | 5000009483 |
| 50Hz Portable Generator 12 kVA | GS12Ai | 5000009108 |
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.
