The Multiquip 8971473340 Idle Gear DCA-45USJ 4JG1 is a genuine OEM component designed for the DCA-45USJ ultra-silent diesel generator. Sourced directly from Multiquip, this part carries the exact specifications required by the Isuzu 4JG1 engine found in DCA-45USJ units, ensuring a true OEM-grade replacement. When your generator's valvetrain or gear train demands an accurate, correctly toleranced idle gear, 8971473340 is the correct part for the job. DHS Equipment stocks this part to help you get your DCA-45USJ back to full operating condition quickly.
Key Features
- OEM Gear Tolerancing — Manufactured to the exact tooth profile and hardness specification of the Isuzu 4JG1 engine, ensuring correct mesh, load transfer, and wear characteristics.
- Direct Engine Drop-In — Matches the original mounting position and gear geometry within the 4JG1 engine assembly, allowing straightforward installation without modification.
- Confirmed DCA-45USJ Fitment — Specifically engineered for the DCA-45USJ ultra-silent generator series; reference part number 8971473340 to confirm compatibility before ordering.
- Sustained Engine Timing Integrity — A correctly functioning idle gear maintains proper valve timing and gear-driven accessory drive synchronization, which is critical to smooth, consistent generator output.
- Genuine Multiquip OEM Part — Supplied as an authentic Multiquip replacement, meaning it meets the same quality standards as the component originally installed at the factory.
The idle gear in an Isuzu 4JG1 engine serves as an intermediate gear within the engine's gear train, transmitting rotational force between the crankshaft and camshaft while also driving ancillary systems such as the fuel injection pump. It plays a direct role in keeping valve timing accurate and engine operation smooth. When this gear wears, chips, or develops excessive backlash, the result is retarded or advanced valve timing, rough running, increased noise from the gear chest, and — in severe cases — engine damage from timing loss.
For assistance confirming that this part is the correct idle gear for your DCA-45USJ application, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 8971473340 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Idle Gear 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.
