The Wacker Neuson Capacitor is a genuine OEM component designed for the HI 400HD, HI 110HD, and HDR 155 series heaters. Sourced directly from Wacker Neuson, this capacitor meets the original electrical specifications the equipment was built around, ensuring proper ignition and motor startup performance across all covered models. Compatible with both gas and diesel indirect air heaters as well as the HDR 155 direct fired radiant heater, this part covers a broad range of Wacker Neuson heating equipment. When your heater fails to start or runs inconsistently, a faulty capacitor is a common culprit — replacing it with the correct OEM part gets your unit back to full operation quickly.
Key Features
- Correct Electrical Specification — Matched to the original capacitance and voltage rating required by Wacker Neuson heater motors, ensuring proper startup torque and ignition response.
- Genuine OEM Part — Supplied by Wacker Neuson, so you receive the exact component installed at the factory — no guesswork on compatibility or specification.
- Direct Drop-In Replacement — Connects using the original wiring configuration, making installation straightforward without any adapters or modifications to existing terminals.
- Broad Heater Compatibility — Fits HI 400HD G, HI 400HD D, HI 110HD D, HI 110D, and HDR 155 models, covering multiple heater types in the Wacker Neuson lineup.
- Restores Reliable Ignition — A worn or failed capacitor causes hard starts, motor stutter, or complete failure to fire; a fresh OEM-spec unit restores consistent startup performance in cold-weather conditions where dependable heat output matters most.
- Electrical Safety Compliance — Using the correctly rated OEM capacitor prevents overcurrent stress on the motor winding circuit, protecting downstream electrical components from damage caused by an under- or over-spec replacement.
A capacitor in a heater unit stores and releases an electrical charge to provide the burst of energy needed to start the motor or ignition system. Without a functioning capacitor, the motor may struggle to reach full speed, run intermittently, or fail to start at all — a critical problem when the equipment is needed in cold-weather job conditions. Over time, capacitors degrade due to heat cycling and electrical stress, making them a routine replacement item in heater maintenance.
Part Details
| Part Number | 5100018615 |
|---|---|
| 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 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 110D, HEATER-INDIRECT, DIESEL, -20° | HI110D | 5000620915 |
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
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.
