The Wacker Neuson is a genuine OEM Voltage Adjust Rheostat designed for the G25, G50, G70, G85, G100, and G120 series portable and skid-mounted mobile generators. As a direct OEM replacement sourced through the Wacker Neuson parts program, the is built to the same electrical specification as the original component. This rheostat covers an extensive range of G-series configurations including standard, cold weather, custom, extended run tank, and skid-mounted variants, making it a versatile service part for fleet operators and rental yards alike. Confirm your model number against the fitment list before ordering to ensure a correct match.
Key Features
- Calibrated Resistance Range: — Engineered to the exact resistance specification of the original, ensuring smooth, accurate voltage adjustment across the generator's output range.
- Genuine OEM Part: — Sourced directly from Wacker Neuson, so the 5000159129 matches the original component's electrical characteristics, connector type, and mounting profile.
- Broad G-Series Compatibility: — Fits G25, G50, G70, G85, G100, and G120 mobile generators across standard, cold weather, custom, skid-mounted, and extended run tank configurations.
- Stable Output Voltage: — A worn or failed voltage adjust rheostat causes erratic or uncontrollable output voltage; replacing it restores consistent, dial-controlled power delivery to connected equipment.
- Electrical Safety Compliance: — Correct output voltage regulation protects sensitive site equipment and tools from voltage fluctuations that can damage loads or create unsafe operating conditions.
The voltage adjust rheostat is a variable resistor integrated into the generator's automatic voltage regulator (AVR) control circuit. By varying resistance as the operator turns the adjustment dial, it fine-tunes the generator's output voltage to the required level for connected loads. When the rheostat wears, corrodes, or fails, the generator may produce voltage that is too high, too low, or unstable — putting connected tools, equipment, and site electronics at risk and making the generator effectively unusable for precision power demands.
Part Details
| Part Number | 5000159129 |
|---|---|
| Old Part Number | 0159129 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Voltage Adjust Rheostat |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Skid-mounted Mobile Generator, Custom | G70 | 5000620352, 5000620350, 5000620351, 5000009367, 5000009468, 5000620002, 5000620708, 5200008344 |
| Skid-mounted Mobile Generator | G50 | 5000009467, 5000009366, 5000620001, 5000620707 |
| Mobile Generator, Custom | G25 | 5000620346, 5000620344, 5000620345, 5000009466, 5000620004, 5000009368, 5000620706, 5000620931 |
| Mobile Generator | G85 | 5000009459, 5000620003, 5000009369 |
| G100-GENERATOR, SKID, CUSTOM, DEERE T3 | G100 | 5000620651, 5000620650, 5200001319, 5000620649, 5200003158, 5200006900, 5000620312, 5000620313, 5000620314, 5200008348, 5200008346, 5200008347, 5200008345, 5100025816 |
| Mobile Generators | G120 | 5200001320, 5000620311, 5000620309, 5000620310, 5200008353 |
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.
Wacker Neuson
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