The Wacker Neuson Voltage Regulator is a genuine OEM component designed for the HI750GM, CUB700GM, and HI900DGM series indirect-fired diesel air heaters. Sourced directly from Wacker Neuson, this regulator meets the original electrical specifications required to maintain stable generator output across these heater units. It is a direct-fit replacement for multiple HI-series configurations, including surge brake and mobile genset variants. If your HI750GM, CUB700GM, or HI900DGM heater is experiencing unstable power output or electrical faults, the is the correct OEM replacement to restore proper operation.
Key Features
- Matched Output Regulation: — Calibrated to the exact voltage output requirements of the onboard genset in HI-series indirect-fired heaters, ensuring the electrical system operates within its designed parameters.
- Genuine OEM Part: — Manufactured to Wacker Neuson's original specification, so the 5000172531 installs directly into the generator circuit without adaptation.
- Broad HI-Series Compatibility: — Confirmed fitment across HI750GM, HI750GM HD Mobile, CUB700GM, and HI900DGM heater variants including surge brake and cold-weather (-40°) configurations.
- Protects Downstream Electrical Components: — A properly functioning voltage regulator prevents over-voltage and under-voltage conditions that can damage burner controls, ignition modules, and other sensitive heater electronics.
- Electrical Safety Compliance: — Correct voltage regulation is critical in fuel-burning equipment; using the specified OEM regulator maintains the integrity of the heater's electrical and ignition safety systems.
The voltage regulator controls the output of the onboard generator, keeping the electrical supply to the heater's burner controls, ignition system, and auxiliary circuits steady and within the correct range. When it functions correctly, the heater runs consistently and all electrical components receive clean, stable power. When a voltage regulator fails or degrades, the generator output can fluctuate — causing erratic ignition, control board faults, or a complete loss of heater function — making it one of the first components to inspect when an HI-series heater develops unexplained electrical issues.
Part Details
| Part Number | 5000172531 |
|---|---|
| Old Part Number | 0172531 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Voltage Regulator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI750 DGM HEATER-INDIRECT | HI750GM | 5000620859, 5000620930 |
| HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 | HI750GMHD | 5000620969 |
| Mobile Indirect Fired Air Heat er, Diesel w/Genset | CUB700GM | 5000620759 |
| HI900 Heater-DGM,Srg,-40 | HI900DGM | 5200014221, 5200014222, 5200014165, 5200014166 |
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.
