The Wacker Neuson is a genuine OEM Hexagonal Head Cap Screw designed for the HI 770 XHD indirect air heater, E2200 and E3000 ES hydronic surface heater, HSH 380S and HSH 380B series, E1250 series hydronic heaters, and the CUB 300 HD portable indirect fired air heater. Sourced directly from Wacker Neuson, this fastener meets the exact material grade, thread pitch, and head geometry specified for these heating and climate control units. Keeping the correct OEM hardware in place ensures structural integrity across panel assemblies, mounting brackets, and service covers on your machine. If you are servicing multiple units across the HI, HSH, or E-series product lines, part number covers a broad range of configurations.
Key Features
- Correct Thread and Head Geometry — Manufactured to the exact thread specification and hexagonal head dimensions called out in Wacker Neuson service documentation, ensuring proper torque transfer without fastener distortion.
- Genuine OEM Hardware — Supplied by Wacker Neuson, this cap screw matches the material grade used on the original assembly — critical for fasteners exposed to the thermal cycling and vibration typical in diesel and hydronic heating equipment.
- Broad Heater Family Fitment — Compatible with HI 770 XHD indirect air heaters, E2200 and E3000 ES hydronic surface heaters, HSH 380S and HSH 380B units, E1250 series heaters, and the CUB 300 HD, covering diesel, LP/NG, and electric configurations.
- Direct Assembly Replacement — Drops straight into existing mounting points with no rework; maintains the clamping load and alignment the original design depends on.
- Protects Against Structural Loosening — A correctly rated cap screw prevents panel or bracket movement under sustained heat output and transport vibration, avoiding secondary damage to surrounding components.
A hexagonal head cap screw is a precision-threaded fastener used to clamp and secure structural panels, brackets, component mounts, and service covers throughout the heater assembly. Unlike standard bolts, cap screws are designed to thread directly into a tapped hole or mating nut with a defined clamping force, making correct thread pitch and material grade essential. When a cap screw is stripped, over-torqued, or replaced with an incorrect grade, the joint can loosen under vibration or thermal expansion, allowing components to shift and potentially causing damage to hoses, wiring, or the heating core itself. Using the correct OEM-specified fastener — part number 5000173985 — preserves the mechanical integrity of the assembly and ensures service intervals remain straightforward.
Part Details
| Part Number | 5000173985 |
|---|---|
| Old Part Number | 0173985 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagonal Head Cap Screw |
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 |
| E2200 GROUND HEATER, W/ LIFT BAIL | E2200 | 5000620215, 5000620176, 5000620216, 5000620226, 5100017448, 5100017449 |
| E1250S | E1250S | 5200012355, 5200012354 |
| HI770XHD Indirect Heater | Arctic Bear XHD NS | 5000620690 |
| E3000 ES Hydronic Surface Heater | E3000ES | 5000620968, 5000620967 |
| E12540B | E1250B | 5200012353, 5200007613 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
| Portable-Indirect Fired Air He ater-Heavy Duty w/LB | CUB300HD | 5000620253 |
| E3000 ES Ground Heater, 3kW Gen | E3000 | 5100017801 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359, 5200007614 |
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.
