The Multiquip 8943282170 is a genuine OEM Idle Gear DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent diesel generator. As a direct OEM replacement, this gear is manufactured to the exact tolerances required by the 4JG1 engine, ensuring proper valve timing and engine operation. Sourced directly through authorized Multiquip channels, this part is confirmed to fit the DCA-45USJ series. When it comes to internal engine components like this, using the correct OEM part is the most dependable way to restore your machine to full operating condition.
Key Features
- OEM Gear Tolerancing — Manufactured to the precise tooth profile and pitch specifications required by the Isuzu 4JG1 engine, ensuring correct gear mesh and load transfer.
- Direct Engine Drop-In — Engineered to seat and align within the 4JG1 valvetrain assembly exactly as the original, with no reworking of mounting points or mating components.
- Confirmed DCA-45USJ Fitment — Verified for the DCA-45USJ ultra-silent generator platform; use part number 8943282170 to confirm compatibility before ordering.
- Maintains Proper Idle and Valve Timing — A correctly functioning idle gear keeps engine timing stable under load, supporting steady generator output and consistent idle speed.
- Genuine Multiquip OEM Part — Supplied through the authorized Multiquip parts network, giving you confidence that this part meets the same standards as the original component.
The idle gear is a critical component within the engine's gear train, responsible for transmitting rotational motion between the crankshaft and camshaft to maintain precise valve timing. In the 4JG1 engine found in the DCA-45USJ generator, this gear must maintain exact mesh clearances to keep combustion events properly synchronized — any wear or damage to its teeth can cause erratic idling, valve timing drift, and increased engine noise. Replacing a worn idle gear promptly with the correct OEM part restores timing accuracy and prevents cascading wear to adjacent gears and bearings.
Part Details
| Part Number | 8943282170 |
|---|---|
| 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.
