The Multiquip 8971160290 Shim Nozzle Spring/Holder DCA25USI 4LE2 is a genuine OEM component designed for the DCA25USI ultra-silent diesel generator. This shim is sourced directly through Multiquip's authorized parts program, ensuring the correct specification for the 4LE2 engine's fuel injection system. Proper fitment to the DCA25USI makes this a direct drop-in service part with no guesswork on spec or sizing. DHS Equipment stocks genuine Multiquip OEM parts so you can get the right component and get your machine back to work fast.
Key Features
- Genuine OEM Injection Precision — Manufactured to exact fuel injector tolerances for the Isuzu 4LE2 engine, ensuring the nozzle spring and holder seat correctly under operating pressure.
- Direct Service Replacement — Installs directly into the fuel injector assembly of the DCA25USI without reworking or adapting surrounding components.
- Confirmed DCA25USI Fitment — Validated for the Multiquip DCA25USI ultra-silent diesel generator powered by the Isuzu 4LE2 engine.
- Fuel System Integrity — A correctly shimmed nozzle spring and holder maintains consistent injection pressure, supporting clean combustion and stable generator output.
- Fuel System Safety — Correct shim specification in the injector assembly is critical to maintaining safe fuel delivery pressure — an improperly shimmed injector can cause uncontrolled fuel atomization or engine damage.
The nozzle spring and holder shim is a precision spacer used within the fuel injector assembly of diesel engines. It sets the preload on the injector nozzle spring, which directly controls the pressure at which fuel is atomized and injected into the combustion chamber. If this shim is worn, missing, or the wrong thickness, injection pressure will fall outside specification — leading to poor combustion, rough running, increased emissions, or injector damage. Replacing it with the correct OEM-spec shim restores proper injection timing and pressure to the Isuzu 4LE2 engine in the DCA25USI generator.
Part Details
| Part Number | 8971160290 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Shim Nozzle Spring/Holder DCA25USI 4LE2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA25USI |
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.
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