The Multiquip 1603253170 Nozzle Spring is a genuine OEM component designed for DA7000SSA2, DA7000SSA2GH, and DLW400ES series diesel-powered generators and welders. As a direct OEM replacement, this spring is manufactured to the same specification as the original part, ensuring correct tension and seating within the fuel injection nozzle assembly. Sourced directly through Multiquip's authorized parts network, 1603253170 is the correct replacement for equipment requiring this nozzle spring. DHS Equipment stocks genuine Multiquip OEM parts to help keep your machine running as intended.
Key Features
- Genuine OEM Spring Tension: — Manufactured to the original tension specification, ensuring the nozzle opens and closes at the correct fuel pressure for consistent injection performance.
- Direct Drop-In Replacement: — Engineered to seat correctly within the nozzle assembly, matching the original mounting configuration for a straightforward installation.
- Confirmed Fitment: — Compatible with DA7000SSA2, DA7000SSA2GH, and DLW400ES series Multiquip diesel generators and welders.
- Protects Injection Consistency: — A worn or fatigued nozzle spring can cause erratic fuel delivery, rough running, or hard starting; replacing it restores stable injection timing and fuel atomization.
- Fuel System Integrity: — Using the correct OEM spring in a fuel injection nozzle is critical to maintaining proper spray pattern and preventing fuel leakage within the injection circuit.
The nozzle spring is a small but critical component within a diesel fuel injector assembly. It controls the opening pressure of the injector nozzle needle — holding it closed until fuel pressure reaches the correct threshold, then allowing it to lift and atomize fuel into the combustion chamber. When this spring weakens or breaks, injection pressure drops, leading to poor fuel atomization, uneven combustion, increased smoke, and loss of power output. Replacing a fatigued nozzle spring restores proper injector operation and protects the broader fuel system from downstream damage.
Part Details
| Part Number | 1603253170 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nozzle Spring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DA7000SSA2 |
| Diesel Powered Generators | DA7000SSA2GH |
| 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.
