The Multiquip 1603253280 is a genuine OEM Nozzle Nut D905-Ebg2 designed for DLW400ES, DLW400ESA, and DLW400ESA1 series diesel light welder-generators. As a direct OEM replacement, this nut is sourced to the same specifications as the original factory component, ensuring a correct and consistent fit within the fuel injection system. Genuine Multiquip parts like the 1603253280 are the most reliable way to restore your machine to proper operating condition without guesswork on fitment or compatibility.
Key Features
- Genuine OEM Injection-Grade Precision — Machined to the exact thread pitch and seating dimensions required for the D905-Ebg2 fuel injection nozzle, ensuring a leak-free, torque-correct connection.
- Direct-Fit Replacement — Installs directly onto the injection nozzle assembly of DLW400ES, DLW400ESA, and DLW400ESA1 welders with no rework or modification to surrounding components.
- Confirmed Fitment for DLW400ES Series — Verified for DLW400ES, DLW400ESA, and DLW400ESA1 diesel light welder-generators; always cross-reference your model code before ordering.
- Fuel System Integrity — A correctly seated nozzle nut maintains proper injection pressure and prevents fuel seepage at the nozzle seat — a failed or cross-threaded nut can cause hard starting, rough running, or fuel contamination.
- Fuel System Safety Compliance — Correct torque and sealing at the nozzle connection is critical to safe diesel fuel system operation; using the correct OEM nut eliminates the risk of under- or over-torque from mismatched hardware.
The nozzle nut secures the fuel injector nozzle to the injector body within the diesel fuel injection system, creating a precision-sealed connection that maintains the correct injection pressure and spray pattern. If this nut is loose, damaged, or incorrectly fitted, it can allow fuel to leak past the nozzle seat, disrupting combustion efficiency and causing rough engine operation or smoke. Replacing a worn or damaged nozzle nut promptly helps restore consistent fuel delivery and keeps the engine running at its designed output level.
Part Details
| Part Number | 1603253280 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nozzle Nut D905-Ebg2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
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.
