The Wacker Neuson is a genuine OEM Screw 1/2-13 X 2 Gr5 Hex Head designed for HI260, HI750, and HI900 series indirect fired air heaters. As a direct factory replacement, this fastener is sourced to the same specification as the original hardware installed during production. It is confirmed compatible across multiple HI-series configurations including diesel, natural gas, and dual-fuel variants. Keep this part number on hand to avoid delays during scheduled service or unplanned repairs on your Wacker Neuson indirect air heater.
Key Features
- Grade 5 Tensile Strength — Manufactured to Grade 5 standards, delivering the clamping force and shear resistance required for structural fastener applications on industrial heating equipment.
- Exact Thread Specification — 1/2-13 UNC thread form and 2-inch length match the original fastener exactly, seating flush and torquing correctly without rework or thread chasing.
- Genuine OEM Sourcing — Supplied as a genuine Wacker Neuson OEM part, ensuring the hardware meets the same material and dimensional standards as the fastener it replaces.
- Broad HI-Series Compatibility — Fits HI260, HI750G, HI750D, HI750GM, HI750GMHD, HI900D, HI900G, and HI900DGM configurations, covering skid-mounted, mobile, and surge-brake heater variants.
- Structural Integrity Under Thermal Cycling — Indirect air heaters operate through repeated heat-up and cool-down cycles; a properly rated replacement fastener maintains joint integrity and prevents loosening over time.
A hex head cap screw like the 5000025689 is a structural fastener used to secure panels, brackets, heat exchangers, and mounting assemblies on indirect fired air heaters. Fasteners in these positions are exposed to vibration from burner and blower operation as well as thermal expansion and contraction during use, which can cause worn or incorrect-grade hardware to loosen, strip, or fail to hold clamping load. Using the correct grade and thread specification ensures panels and components stay properly secured, maintaining safe operation and preventing air leaks or component misalignment that could affect heater output.
Part Details
| Part Number | 5000025689 |
|---|---|
| Old Part Number | 0025689 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Screw 1/2-13 X 2 Gr5 Hex Head |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI260 HEATER,OIL WITH TANK | HI260 | 5200018503, 5200018504 |
| 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 |
| Factory-Installed Options | Factory-Installed Options | 5200004152 |
| Light Tower | LTC4L | 5000009311 |
| CRT46KHN | CRT46KHN | 5000007515 |
| CRT46KHO | CRT46KHO | 5000007641 |
| 915mm/36in Ride-On Trowel, ove rlapping | CRT36ASO | 5000007512 |
| 915mm/36in Ride-On Trowel, non #NAME? | CRT36ASN | 5000007513 |
| CRT46ASO | CRT46ASO | 5000007514 |
| 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.