The Multiquip 8971160320 is a genuine OEM Shim Nozzle Spring Holder DCA25USI 4LE2 designed for the DCA25USI ultra-silent diesel generator. As a direct OEM replacement sourced through Multiquip's authorized parts network, this shim is manufactured to the exact tolerances required by the 4LE2 engine's fuel injection system. Verified fitment for the DCA25USI ensures this component installs correctly without adaptation. DHS Equipment supplies this part as a stocked Multiquip OEM component, ready for service and maintenance applications.
Key Features
- Injection-Grade Dimensional Accuracy — Manufactured to the precise thickness specification required by the 4LE2 fuel injector spring and holder assembly, maintaining correct nozzle opening pressure.
- Direct OEM Replacement — Matches the original component geometry for a drop-in installation within the injector stack on the DCA25USI engine.
- Confirmed Fitment for DCA25USI — Specifically validated for the Multiquip DCA25USI ultra-silent diesel generator powered by the Isuzu 4LE2 engine.
- Fuel System Integrity — A correctly spec'd shim maintains the calibrated spring preload on the injector nozzle needle, supporting consistent fuel atomization and combustion efficiency.
- Genuine Multiquip OEM Part — Supplied under part number 8971160320, this component meets the same material and dimensional standards as the original production part.
The nozzle spring shim is a precision spacer seated within the fuel injector assembly of the Isuzu 4LE2 diesel engine. Its primary role is to set the correct preload on the injector nozzle spring, which directly controls the pressure at which the nozzle needle lifts and fuel is injected into the combustion chamber. If this shim is worn, incorrect in thickness, or missing, injection pressure will fall outside specification — leading to poor atomization, hard starting, increased fuel consumption, and uneven engine performance. Using the correct OEM-spec shim during injector service or rebuild is essential to restoring proper injection calibration.
Part Details
| Part Number | 8971160320 |
|---|---|
| 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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