The Wacker Neuson Pulley is a genuine OEM component designed for the HI 770 XHD Indirect Air Heater series. Sourced directly from Wacker Neuson, this pulley is built to exact original specifications, ensuring a direct, hassle-free installation on affected HI 770 XHD units. Fitment covers multiple HI 770 XHD configurations including diesel 2x12, 1x16, and 1x20 duct variants, as well as Extra Heavy Duty Air Heater builds. When a pulley wears or fails, belt-driven airflow through the heater is compromised — keeping a correct replacement on hand means heat output is restored quickly without improvised fixes.
Key Features
- Genuine OEM Dimensional Accuracy — Machined to the exact bore, outer diameter, and groove profile specified by Wacker Neuson, ensuring correct belt engagement and tension on the HI 770 XHD drive system.
- Direct Drop-In Fitment — Mounts to the existing shaft and hardware without modification, matching the original pulley's bolt pattern and hub interface.
- Broad HI 770 XHD Coverage — Compatible with multiple HI 770 XHD configurations including diesel 2x12, 1x16, 1x20 duct setups, and Extra Heavy Duty Air Heater variants.
- Sustained Airflow Performance — A correctly seated pulley maintains proper belt speed and blower output, preserving the heater's rated heat delivery across cold-weather jobsite conditions.
- Fuel System Safety Relevance — On diesel indirect heaters, consistent blower operation is critical to combustion air balance; a worn or slipping pulley can disrupt air-to-fuel ratios and trigger safety shutdowns.
The pulley on an indirect air heater is a belt-driven component that transfers rotational power from the motor to the blower fan assembly, controlling the volume of air pushed through the heat exchanger and out through the duct system. When the pulley is correctly sized and firmly seated, belt tension remains consistent and blower speed stays within the designed operating range, allowing the heater to deliver its full rated heat output. A cracked, worn, or incorrectly sized pulley causes belt slippage or misalignment, which reduces airflow, strains the drive motor, and can lead to overheating or combustion faults on diesel-powered units like the HI 770 XHD.
Part Details
| Part Number | 5000173149 |
|---|---|
| Old Part Number | 0173149 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pulley |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 770 XHD Indirect Air Heater, Diesel, 2x12 | Arctic Bear XHD | 5000620676 |
| HI 770 XHD Indirect Air Heater, Diesel, 1x16 | HI770XHD | 5000620183, 5200003814, 5200004934, 5100049894 |
| HI770XHD Indirect Heater | Arctic Bear XHD NS | 5000620690 |
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.
