The Multiquip 8973119760 is a genuine OEM Valve Relief DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent generator series. As a direct-source OEM component, it is manufactured to the same specification as the original part installed at the factory, ensuring an exact match to the engine's hydraulic or fuel system relief circuit. This part is confirmed for the DCA-45USJ, so you can order with confidence knowing it will seat and function correctly without any guesswork on compatibility.
Key Features
- Genuine OEM Pressure Specification — Built to the precise relief threshold of the original valve, ensuring the system vents at the correct pressure rather than too early or too late.
- Direct-Fit for the Isuzu 4JG1 Engine — Engineered specifically for the 4JG1 engine platform used in the DCA-45USJ, so it installs in the original port with no adaptation needed.
- Confirmed DCA-45USJ Fitment — Part 8973119760 is verified for the DCA-45USJ ultra-silent generator; reference your serial plate to confirm your engine variant before ordering.
- Protects Engine and Hydraulic Circuits — A properly functioning relief valve prevents overpressure conditions that can damage seals, galleries, and downstream components in the 4JG1 engine.
- Sourced Through Authorized Distribution — Sold by DHS Equipment as an authorized Multiquip parts distributor, providing traceability and part authenticity you can rely on.
A relief valve is a pressure-control component that opens at a set threshold to divert excess fluid — whether engine oil or fuel — back into the system circuit, preventing dangerous pressure spikes. In the Isuzu 4JG1 engine fitted to the DCA-45USJ, the relief valve protects lubrication passages and other pressure-sensitive circuits from over-pressurization during startup, high-load operation, or cold-oil conditions. When this valve wears, sticks open, or fails to seat correctly, the engine may experience inadequate lubrication pressure or uncontrolled pressure buildup, both of which can lead to accelerated wear or component damage.
Part Details
| Part Number | 8973119760 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Valve Relief 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.
