The Wacker Neuson Fan Limit Cable is a genuine OEM component designed for the HI750 and HI900 series indirect fired air heaters, including diesel, natural gas, and dual-fuel DGM configurations. As a direct OEM replacement, this cable is manufactured to the original specification, ensuring it integrates correctly with the heater's safety and control circuit without guesswork or adaptation. It covers a wide range of HI750 and HI900 variants — from standard skid-mounted units to surge brake and extreme cold-weather models rated to -40°. Keep a verified part number on hand when ordering: is the authoritative reference for this cable across the supported model range.
Key Features
- OEM Electrical Integrity — Manufactured to original resistance and signal specifications, so the fan limit control circuit operates exactly as designed.
- Direct Plug-In Replacement — Connector terminations and cable routing match the original, allowing a clean swap into the existing heater control assembly.
- Broad HI750 and HI900 Coverage — Fits diesel, natural gas, LP, DGM, and HD surge brake variants across both series, including skid-mounted and mobile configurations.
- Protects Fan and Heat Exchanger Operation — A correctly functioning fan limit cable ensures the burner and blower cycle on and off at the right thresholds, maintaining consistent output heat and protecting internal components from overrun.
- Safety-Critical Compliance — This cable is part of the heater's limit safety circuit; using a genuine OEM part ensures the switch response and wiring integrity meet the original equipment's safety design requirements.
The fan limit cable connects the fan limit switch to the heater's control board, transmitting temperature-based signals that tell the burner and blower when to activate and when to shut down. This limit circuit is a core safety and efficiency mechanism — if the cable is damaged, corroded, or develops an open circuit, the heater may fail to ignite, run continuously without shutting off, or trigger fault codes that take the unit offline. Replacing a worn or failed fan limit cable with a genuine Wacker Neuson 5000192493 restores proper limit control and keeps the heater cycling correctly through its heating sequence.
Part Details
| Part Number | 5000192493 |
|---|---|
| Old Part Number | 0192493 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fan Limit Cable |
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.