The Wacker Neuson Fuel Check Valve KJ-130 Genset is a genuine OEM component designed for the HI750, HI900, HIF690, and CUB700 series indirect air heaters. Sourced directly from Wacker Neuson, this part meets the exact specification of the original component fitted at the factory — no guesswork, no improvisation. Confirmed fitment spans genset-equipped and surge brake models across the HI750GM, HI900DGM, HIF690, and CUB700GM heater lines, covering a wide range of mobile indirect fired and flameless heating configurations.
Key Features
- Genuine OEM Fuel System Integrity — Manufactured to Wacker Neuson's original valve specification, ensuring correct cracking pressure and one-way flow control for the KJ-130 genset fuel circuit.
- Direct Drop-In Replacement — Matches the original port dimensions and connection points of the 5000180585, allowing straightforward installation without adapters or modification.
- Broad Heater Series Compatibility — Fits HI750GM, HI900DGM, HIF690, and CUB700GM series heaters, including standard, surge brake, and Kubota engine variants.
- Prevents Fuel Backflow — A functioning check valve holds fuel in the supply line between cycles, supporting consistent burner ignition and stable heat output in cold-weather jobsite conditions.
- Fuel System Safety — A compromised check valve can cause uncontrolled fuel flow or hard starts that stress ignition components; replacing with a genuine OEM part restores proper fuel containment and system safety margins.
A fuel check valve allows fuel to flow in one direction only, preventing backflow from the burner or fuel system back toward the supply source. In indirect air heaters like the HI750 and HI900 series, this valve helps maintain fuel prime in the line between heating cycles, supporting quick, consistent ignition when the unit calls for heat. When the valve fails or sticks open, fuel can drain back from the line, causing hard starts, misfires, or irregular burner operation that reduces heating efficiency and places additional load on the ignition system.
Part Details
| Part Number | 5000180585 |
|---|---|
| Old Part Number | 0180585 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Check Valve KJ-130 Genset |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI750 DGM HEATER-INDIRECT | HI750GM | 5000620859, 5000620930 |
| HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 | HI750GMHD | 5000620969 |
| Mobile Indirect Fired Air Heat er, Diesel w/Genset | CUB700GM | 5000620759 |
| HI900 Heater-DGM,Srg,-40 | HI900DGM | 5200014221, 5200014222, 5200014165, 5200014166 |
| 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.
