The Multiquip D4374100003 Air Cleaner Hose is a genuine OEM Air Cleaner Hose designed for DLW330X2 and DLW400ESA4 series diesel light welders. As a direct OEM replacement, this hose is manufactured to the same specifications as the original component, ensuring a correct, trouble-free installation on compatible Multiquip DLW-series machines. Sourced directly through authorized channels, part number D4374100003 gives you confidence that you are installing the exact component your machine was built with.
Key Features
- Genuine OEM Construction — Manufactured to original material and dimensional specifications, delivering the correct airflow path and sealing integrity that the DLW-series diesel engine depends on.
- Direct-Fit Replacement — Engineered to connect directly to the air cleaner assembly on DLW330X2 and DLW400ESA4 welders, matching original routing, diameter, and end fittings without modification.
- Confirmed Fitment — Compatible with Multiquip DLW330X2 and DLW400ESA4 diesel light welder models; always verify your model code before ordering.
- Protects Engine Air Supply — A properly sealed air cleaner hose maintains clean, unobstructed airflow to the engine; a cracked or loose hose allows unfiltered air and debris to enter, accelerating wear on internal engine components.
- Fuel System Safety Relevance — Maintaining an airtight intake path on a diesel welder is critical to stable combustion and consistent output voltage; a compromised hose can cause rough running, black smoke, and unpredictable arc performance.
The air cleaner hose connects the air cleaner assembly to the engine intake, channeling filtered air into the combustion chamber while maintaining a sealed, debris-free path. On a diesel-powered welder like the DLW330X2 and DLW400ESA4, consistent air quality directly affects combustion efficiency, engine longevity, and output stability. When this hose cracks, collapses, or loses its seal, unfiltered air bypasses the cleaner element and enters the engine, leading to accelerated cylinder wear, increased fuel consumption, and erratic welding performance.
Part Details
| Part Number | D4374100003 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Air Cleaner Hose |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW330X2 |
| Welders | DLW400ESA4 |
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.
