The Wacker Neuson Capacitor is a genuine OEM component designed for the HI400HD G, HI300HD D, and HI300D Indirect Air Heater series. Sourced directly from Wacker Neuson, this capacitor is manufactured to the exact electrical specification required by these heaters, ensuring correct startup behavior and stable motor operation. It fits the HI400HD G, HI300HD D, and HI300D models as a direct drop-in replacement, with no guesswork on compatibility.
Key Features
- Matched Electrical Specification — Genuine OEM construction ensures the capacitance rating is precisely matched to the heater's motor requirements, avoiding under- or over-voltage startup conditions.
- Direct Terminal Replacement — Designed to connect directly to the existing motor terminals on the HI-series heaters, reinstalling cleanly without adapters or modifications to wiring.
- Confirmed Fitment for HI-Series Indirect Air Heaters — Verified for the HI400HD G, HI300HD D, and HI300D models, covering both diesel and gas indirect heating configurations.
- Restores Reliable Motor Startup — A failed or degraded capacitor causes hard starts, motor humming, or complete failure to ignite the heater cycle; replacing it restores full, consistent startup performance.
- Electrical Safety Assurance — As a genuine OEM electrical component, this capacitor meets the voltage and temperature ratings specified for these heaters, reducing the risk of overheating or electrical faults during operation.
A capacitor in an indirect air heater serves as the electrical storage component that delivers the surge of power needed to start the blower motor. Without a functioning capacitor, the motor cannot generate the torque required to spin up from a standing start, which typically results in humming, tripping the overload, or a complete failure to run. Over time, capacitors degrade naturally due to heat cycling and age, making them one of the more common service items on electric motor-driven heaters. Replacing a worn capacitor with the correct OEM-rated unit restores proper motor startup and protects the motor windings from the strain caused by prolonged low-torque attempts to start.
Part Details
| Part Number | 5100018617 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Capacitor |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
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.
