The Wacker Neuson is a genuine OEM Keps Zinc Plated Nut 11841 designed for the HI 770 XHD series indirect air heaters. As a factory-original component, it meets the exact specifications set during production, ensuring a correct and secure fit in the fastening locations it was engineered for. This nut is confirmed compatible across multiple HI 770 XHD configurations, including diesel-powered models with single and dual duct arrangements. Keep part number on hand for scheduled maintenance and field repairs to avoid unnecessary delays.
Key Features
- Genuine OEM Zinc Plating Integrity — The zinc plating provides corrosion resistance suited to the demanding thermal and environmental conditions common in indirect air heater operation.
- Keps Nut Design — The integrated free-spinning lock washer seats flush and bites into the mating surface as it tightens, eliminating the need for a separate lock washer during installation.
- Broad HI 770 XHD Compatibility — Fits multiple HI 770 XHD configurations, including the Arctic Bear XHD, Arctic Bear XHD NS, and standard extra heavy duty diesel variants across various duct and tank setups.
- Correct Thread Engagement — As an OEM-specified fastener, this nut delivers the thread form and torque retention required to keep critical heater assemblies securely fastened under vibration and heat cycling.
- Fastener Failure Prevention — A worn, stripped, or incorrect nut can allow panels, ducting, or components to loosen during operation; using the correct OEM fastener maintains structural integrity of the heater assembly.
A Keps nut — also known as a K-lock nut — is a hex nut with a free-spinning external tooth lock washer permanently attached to its bearing face. When tightened, the serrated washer bites into the surface of the mating component, creating resistance to loosening caused by vibration. On an indirect air heater like the HI 770 XHD, fasteners like this are used throughout the unit's frame, panels, and ducting assemblies, where sustained vibration from the burner and blower systems can cause standard fasteners to back out over time. Using the correct OEM fastener ensures the specified clamping force and thread engagement are maintained, keeping the heater operating safely and reliably across long run cycles.
Part Details
| Part Number | 5200005440 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Keps Zinc Plated Nut 11841 |
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.
