The Wacker Neuson Reducing Washer, 1" to 1/2" Trade Size is a genuine OEM component designed for the HI770XHD Extra Heavy Duty Air Heater. Sourced directly through Wacker Neuson's authorized parts program, this washer matches the exact dimensions and material spec of the original part installed at the factory. If you're servicing an HI770XHD and need a dependable like-for-like replacement, part is the correct choice to restore proper assembly fit.
Key Features
- Exact Trade Size Match — Sized precisely at 1" to 1/2" trade size, ensuring the correct bore transition without shimming or adapting at the connection point.
- Genuine OEM Part — Manufactured to Wacker Neuson's original material and dimensional standards, so the washer seats and seals as intended in the original assembly design.
- Direct Fitment for HI770XHD — Confirmed compatible with the Wacker Neuson HI770XHD Extra Heavy Duty Air Heater; no guesswork on sizing or thread/bore compatibility.
- Maintains Proper Load Distribution — A correctly sized reducing washer spreads clamping force evenly across mismatched fittings, preventing distortion, leaks, or loosening under heat-cycle stress in a heater application.
- Simple Drop-In Service Part — Straightforward to install during routine maintenance or heater repair, slotting into the existing hardware stack without modification.
A reducing washer bridges two different trade sizes at a pipe or fitting connection — in this case stepping down from 1" to 1/2" — allowing components with different bore diameters to mate cleanly and securely. In a forced-air heater like the HI770XHD, maintaining tight, properly fitted connections throughout the fuel and air delivery system is critical to consistent burner performance and safe operation. When a reducing washer wears, deforms, or goes missing, the joint can work loose, leading to vibration, leaks, or an improper seal that affects the heater's ability to maintain output.
Part Details
| Part Number | 5100051809 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Reducing Washer, 1" to 1/2" Trade Size |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Extra Heavy Duty Air Heater | HI770XHD | 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.
