The Wacker Neuson Switch Contractor 5Hp Motor is a genuine OEM component designed for the HI750 and HI900 series mobile indirect fired air heaters. Sourced directly from Wacker Neuson, this part meets the exact electrical specifications required for proper motor control operation across the full range of compatible heater configurations. It fits a wide spread of HI750 and HI900 variants including diesel, natural gas, LP, and dual-fuel DGM models, as well as skid-mounted and surge-brake equipped units. When you need an exact-match replacement to restore reliable motor switching function, the is the correct part for the job.
Key Features
- Correct Electrical Rating for the Application — Rated specifically for the 5Hp motor circuit, ensuring proper switching capacity without under- or over-speccing the contactor for this heater platform.
- Genuine OEM Component — Manufactured by Wacker Neuson to the same specification as the original part, so the switching characteristics, coil voltage, and contact configuration match what the machine was built with.
- Direct-Fit Replacement — Designed to drop into the existing motor control circuit on compatible HI750 and HI900 heaters with no adaptation to wiring harness or mounting hardware.
- Broad HI750 and HI900 Series Coverage — Compatible with diesel, natural gas, LP, DGM, skid-mounted, and surge-brake configurations across both model families, covering a wide range of job-site heating setups.
- Restores Full Motor Control Function — A failed or worn contactor can prevent the 5Hp motor from starting or cause erratic switching behavior; replacing it with the correct OEM part brings motor engagement back to normal operation.
- Electrical Safety Compliance — As a switching component in a fuel-fired heater's motor circuit, using a correctly rated OEM contactor matters for safe, code-appropriate operation in temporary heat applications.
A switch contractor — more commonly known as a contactor — is an electrically controlled switch used to manage power flow to a motor. In the HI750 and HI900 indirect fired air heaters, the 5000192462 Switch Contractor 5Hp Motor controls the engagement and disengagement of the 5Hp motor that drives the unit's air-moving components. When the contactor wears out or fails, the motor may not start, may run intermittently, or may not shut off correctly — all of which affect heating output and safe operation of the unit. Replacing a faulty contactor promptly with the correct OEM-rated part keeps the heater's electrical system operating as designed.
Part Details
| Part Number | 5000192462 |
|---|---|
| Old Part Number | 0192462 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Switch Contractor 5Hp Motor |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI750 DGM HEATER-INDIRECT | HI750GM | 5000620859, 5000620930 |
| Mobile Indirect Fired Air Heat er, Diesel | HI750D | 5000620856, 5000620923, 5000620924 |
| HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 | HI750GMHD | 5000620969 |
| HI750G HEATER-INDIRECT | HI750G | 5000620857, 5000620928, 5000620929 |
| HI900 Heater-DGM,Srg,-40 | HI900DGM | 5200014221, 5200014222, 5200014165, 5200014166 |
| HI 900D Heater-Indirect | HI900D | 5200014158, 5200014159, 5200014160 |
| Skid Indirect Air Heaters Natu ral Gas | HI900G | 5200014161 |
| HI 900G Heater-Indirect,3x16 | HI900 G | 5200014163, 5200014164 |
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.
