The Multiquip 8970177941 Pipe Injection No 4 DCA-45USJ 4JG1 is a genuine OEM fuel injection component designed for the DCA-45USJ ultra-silent diesel generator. As a direct OEM replacement sourced through Multiquip's authorized parts network, this injection pipe is manufactured to the exact specifications required by the 4JG1 engine fitted to the DCA-45USJ. Confirm your model code against 8970177941 before ordering to ensure a correct application match for your unit.
Key Features
- OEM Fuel System Integrity — Manufactured to the precise dimensional and pressure tolerances required by the 4JG1 engine's high-pressure injection circuit, ensuring consistent fuel delivery to cylinder No. 4.
- Direct-Fit Installation — Engineered as a drop-in replacement for the DCA-45USJ, matching the original routing, fittings, and connection points of the factory injection pipe.
- DCA-45USJ Specific Fitment — Confirmed compatibility with the DCA-45USJ ultra-silent diesel generator series; reference part 8970177941 against your model plate before ordering.
- Sustained Power Output — A correctly functioning injection pipe delivers the precise fuel charge needed for stable generator output; a cracked or leaking pipe causes misfires, rough running, and loss of rated power.
- Fuel System Safety — High-pressure injection pipe integrity is critical to safe diesel operation; replacing a damaged pipe with a genuine OEM component eliminates the risk of fuel leaks near hot engine surfaces.
The injection pipe on a diesel engine carries high-pressure fuel from the injection pump to a specific cylinder's injector — in this case, cylinder No. 4 of the Isuzu 4JG1 engine. It must withstand repeated high-pressure pulses with zero leakage to maintain correct injection timing and fuel metering. When an injection pipe cracks, corrodes, or develops a loose fitting, fuel delivery to that cylinder is disrupted, resulting in rough idling, reduced power output, increased exhaust smoke, and potential fuel leakage onto hot engine components.
Part Details
| Part Number | 8970177941 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Pipe Injection No 4 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.
