The Wacker Neuson Fuel Cap is a genuine OEM component designed for the HI 770 XHD Indirect Air Heater series, including diesel configurations such as the 2x12, 1x16, and 1x20 duct variants as well as Extra Heavy Duty Air Heater models. As a direct OEM replacement, the is manufactured to the same specifications as the original part, ensuring a secure, leak-free seal on the fuel tank. Keeping the fuel system properly sealed is critical in cold-weather jobsite conditions where these heaters are most frequently deployed.
Key Features
- OEM-Engineered Seal Integrity — Manufactured to match the original cap's thread pitch and gasket compression rating, preventing fuel vapor loss and contamination ingress on diesel-fueled heaters.
- Direct Drop-In Replacement — Threads directly onto the HI 770 XHD fuel tank filler neck with no adaptation required, matching the original interface exactly.
- Broad HI 770 XHD Coverage — Compatible across multiple HI 770 XHD configurations including 2x12, 1x16, and 1x20 duct setups and Extra Heavy Duty Air Heater variants.
- Fuel System Protection — A correctly sealing fuel cap prevents diesel spillage and keeps debris and moisture out of the tank, protecting injectors and the fuel delivery system from contamination.
- Fuel Containment Safety — On diesel heating equipment operating in enclosed or semi-enclosed workspaces, a properly sealed fuel cap reduces the risk of vapor exposure and unintended fuel release.
The fuel cap seals the filler neck of the diesel fuel tank on indirect air heaters, preventing fuel from escaping during transport, operation, and storage. A secure cap also acts as the first line of defense against moisture, dirt, and debris entering the tank — contaminants that can clog fuel filters and damage the burner assembly over time. When a fuel cap is cracked, stripped, or missing its seal, diesel can leak or evaporate, reducing runtime and creating a fire or vapor hazard in temperature-controlled work environments.
Part Details
| Part Number | 5000168726 |
|---|---|
| Old Part Number | 0168726 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Cap |
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 |
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.
