The Wacker Neuson Governor Spring 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 trowels, the BFS 2020AS saw, GS12Ai, and the GPS9700A. Sourced directly from Wacker Neuson, this part meets the exact specifications required to keep engine speed regulation performing as intended across all compatible machines. Confirm your model number before ordering — this spring fits multiple configurations within the RD12A-90, CRT36-26A, and CRTv36-26A families, including foldable ROPS and wheel kit variants.
Key Features
- Correct Spring Rate for Governor Stability — Matched to Wacker Neuson's OEM tension specification, ensuring the governor responds accurately across the full engine speed range.
- Genuine OEM Part — Supplied by Wacker Neuson as part number 5000226572, meaning no guesswork on compatibility or dimensional tolerancing.
- Broad Cross-Model Fitment — Covers the RD12A-90 roller series, CRT36-26A and CRTv36-26A trowel configurations, BFS 2020AS saw, GS12Ai, and GPS9700A in a single part number.
- Restores Consistent Engine RPM — A fatigued or broken governor spring causes erratic throttle response and unstable engine speed; replacing it with 5000226572 restores steady, controlled operation.
- Direct-Fit Installation — Engineered as a like-for-like replacement that seats and hooks in the same position as the original, keeping reinstallation straightforward for technicians already familiar with these engines.
The governor spring is a critical component in the engine's mechanical governor assembly. It works in tension against the flyweights or throttle lever to set and hold the engine at a target RPM under varying load conditions — when the engine is asked to do more work, the governor spring resists over-correction and helps maintain a steady speed. When this spring weakens, stretches, or breaks, the engine may surge, hunt, or fail to hold a consistent RPM, which directly impacts the output quality of compaction equipment, concrete trowels, and cutting saws that depend on stable engine speed to operate correctly.
Part Details
| Part Number | 5000226572 |
|---|---|
| Old Part Number | 0226572 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Governor Spring |
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.
