The Multiquip 8944422250 Nozzle Holder Assembly DCA-45USJ 4JG1 is a genuine OEM component designed for the DCA-45USJ ultra-silent diesel generator. As a direct OEM replacement, this assembly is sourced to the exact specifications of the original part, ensuring a correct, trouble-free installation on the DCA-45USJ. Verified fitment for the DCA-45USJ means you can order with confidence, knowing this is the right part for your machine. DHS Equipment stocks genuine Multiquip OEM parts to keep your equipment running at full capacity.
Key Features
- Genuine OEM Fuel System Integrity — Manufactured to the exact tolerances required for the 4JG1 engine's injection system, ensuring consistent fuel delivery and combustion performance.
- Direct-Mount Replacement — Engineered to mount directly in place of the original nozzle holder on the DCA-45USJ, requiring no adaptation or custom fitting during installation.
- Confirmed Fitment for DCA-45USJ — Specifically matched to the DCA-45USJ ultra-silent diesel generator equipped with the Isuzu 4JG1 engine.
- Supports Steady Power Output — A correctly seated nozzle holder maintains proper fuel atomization in the 4JG1 engine, supporting stable load handling and consistent generator output.
- Fuel System Safety — A properly sealed nozzle holder assembly prevents fuel leaks at the injector seat, reducing the risk of fuel weeping and potential fire hazard in an enclosed generator housing.
The nozzle holder assembly secures the fuel injector nozzle within the engine's cylinder head, positioning it precisely so that fuel is atomized and directed into the combustion chamber at the correct angle and pressure. On the Isuzu 4JG1 engine found in the DCA-45USJ, this component forms a critical sealed interface between the injector and the head — if it becomes worn, cracked, or improperly seated, the result is poor fuel atomization, rough running, loss of power output, and potentially a fuel leak at the injector bore. Replacing a faulty nozzle holder assembly with a genuine OEM part restores the tight seal and correct injector positioning the engine depends on for efficient, stable operation.
Part Details
| Part Number | 8944422250 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nozzle Holder Assembly DCA-45USJ 4JG1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| DCA-45USJ | DCA-45USJ |
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.
Multiquip
Multiquip 8972112800 Injector Nozzle Assembly DCA-45USJ 4JG1
