The Wacker Neuson Flange Bolt is a genuine OEM component designed for the HIF 690 Flameless Air Heater series, including Kubota engine-equipped models. As a direct OEM part, it is manufactured to the same specifications as the original hardware installed at the factory, ensuring a consistent, correct fit every time. This flange bolt is the right choice when accuracy and integrity of the repair matter — particularly on heating equipment where structural fasteners must perform under thermal cycling and mechanical stress. Confirm your model number against the fitment list before ordering to ensure this is the correct part for your machine.
Key Features
- OEM-Grade Fastener Integrity — Manufactured to the original torque and thread specification, so clamping force and joint integrity meet the same standard as the bolt it replaces.
- Drop-In Hardware Replacement — Matches the original flange geometry and thread pitch, so it seats and torques correctly without modification to mating surfaces or hardware.
- HIF 690 Series Fitment — Confirmed for the HIF 690 Flameless Air Heater, including both standard and Kubota engine-equipped variants.
- Thermal and Mechanical Durability — Built to withstand the repeated heat cycles and vibration loads inherent to flameless heater operation, helping maintain joint integrity over the service life of the machine.
- Fuel System and Structural Safety Relevance — On flameless heating equipment, correctly torqued flange fasteners help maintain sealed connections in fuel and combustion-adjacent assemblies, making like-for-like OEM replacement the appropriate choice.
A flange bolt combines a standard bolt head with an integrated wide-bearing flange that distributes clamping load evenly across the mating surface, eliminating the need for a separate washer and reducing the risk of surface damage or loosening under vibration. In flameless heater applications, these fasteners are used throughout the machine to secure housings, mounting brackets, and critical assemblies that must remain tightly clamped despite repeated heating and cooling cycles. When a flange bolt stretches, strips, or fails, the joint it secures can work loose — potentially leading to misalignment, leaks, or structural failure that takes the machine out of service.
Part Details
| Part Number | 5100028261 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flange Bolt |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HIF 690 Flameless Air Heater | HIF690 | 5100017599, 5200021915 |
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.
