The Wacker Neuson Valve Rocker Arm is a genuine OEM component designed for a wide range of Wacker Neuson equipment, including the RD12A-90 tandem roller series, CRT36-26A and CRTv36-26A power trowels, the BFS 2020AS saw, GS12Ai, and GPS9700A. As a direct genuine OEM part, the is manufactured to the exact specifications required to maintain correct engine valve operation across every compatible model. This is the same part sourced through Wacker Neuson's authorized supply chain, so you can install with confidence knowing fitment and performance are built in from the start.
Key Features
- Genuine OEM Valve Geometry — Manufactured to exact pivot-and-contact tolerances that keep valve lift and timing within spec for proper engine breathing and combustion efficiency.
- Drop-In Engine Replacement — Engineered to seat directly on the rocker shaft and contact the valve stem and pushrod at the correct geometry, requiring no machining or shimming during installation.
- Broad Wacker Neuson Fitment — Compatible with the RD12A-90 roller series, CRT36-26A and CRTv36-26A trowels, BFS 2020AS saw, GS12Ai, and GPS9700A generator.
- Sustained Power Output — A correctly functioning rocker arm ensures full, consistent valve actuation; a worn or cracked arm causes misfires, power loss, and accelerated valve seat wear.
- Fuel System Integrity — Proper valve actuation directly affects fuel-air charge delivery; maintaining the correct rocker arm keeps fuel consumption and exhaust emissions within designed operating parameters.
The valve rocker arm is a pivoting lever in the engine's valvetrain that transfers motion from the camshaft — via the pushrod — to open and close the intake and exhaust valves. It acts as a mechanical relay between the rotating camshaft and the reciprocating valve stems, controlling when fuel-air mixture enters the combustion chamber and when exhaust gases exit. When a rocker arm becomes worn, cracked, or develops excessive play at the pivot bore, valve timing is disrupted, leading to rough running, reduced compression, hard starting, and potential damage to valve stems and seats if left unaddressed.
Part Details
| Part Number | 5000226425 |
|---|---|
| Old Part Number | 0226425 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Rocker Arm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
| BFS 2020AS SAW | BFS 2020AS | 5000620086 |
| 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 |
| GPS9700A | GPS9700A | 5100042221 |
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.
