The Wacker Neuson Gear Oil Pump is a genuine OEM component designed for the RD12A-90 tandem roller series, GS12Ai, and CRT36-26A and CRTv36-26A power trowel series. As a direct factory replacement, this part is manufactured to the same specifications as the original, ensuring it integrates correctly into the lubrication system without guesswork or adaptation. Fitment extends across multiple configurations within these machine families, including foldable ROPS roller variants and wheel kit-equipped trowel models. Keeping the oil pump in proper working order is critical to protecting the drive components and maintaining consistent machine output.
Key Features
- OEM-Matched Flow and Pressure Output — Manufactured to original Wacker Neuson specification, delivering the correct oil volume and pressure needed to sustain proper lubrication across the drivetrain.
- Drop-In Replacement — Engineered to the same mounting configuration and port dimensions as the original, so installation follows the same procedure as the part being replaced.
- Broad Series Compatibility — Fits RD12A-90 tandem rollers (including foldable ROPS variants), the GS12Ai, and the full CRT36-26A and CRTv36-26A trowel lineup, covering both standard and wheel kit configurations.
- Protects Critical Drive Components — A functioning gear oil pump keeps bearings, gears, and moving drivetrain parts properly lubricated; a worn or failing pump leads to heat buildup and accelerated internal wear.
- Genuine Wacker Neuson OEM Part — Sourced directly through the Wacker Neuson parts network, carrying part number 5000226436 for confident, accurate ordering.
The gear oil pump circulates lubricating oil through the machine's drive system, maintaining a consistent film between metal surfaces to reduce friction and dissipate heat. On compaction rollers and power trowels, the drivetrain is under sustained load during operation, making reliable oil flow essential to the longevity of internal components. When the gear oil pump begins to fail, oil pressure drops, lubrication becomes inconsistent, and the risk of premature gear or bearing failure increases significantly.
Part Details
| Part Number | 5000226436 |
|---|---|
| Old Part Number | 0226436 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gear Oil Pump |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
| GS12Ai | GS12AI | 5000620317 |
| CRT36-26A Trowel w/Wheel Kit | CRT36-26A | 5000621000, 5000620999, 5000621001, 5000621002 |
| CRTv 36-26A Trowel, w/Wheel Kit | CRTv36-26A | 5200008544, 5200008545, 5200008546 |
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.
