The Multiquip 8972405920 is a genuine OEM Hose Feed Oil Cooler DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent generator. As a direct Multiquip OEM part, it is manufactured to the exact dimensions and material specifications required by the 4JG1 engine's oil cooling circuit, ensuring a correct, leak-free connection straight out of the box. This hose is purpose-built for the DCA-45USJ platform, so owners and service technicians can fit it with confidence knowing it matches the original component precisely.
Key Features
- OEM-Grade Hose Construction — Built to the pressure tolerance and temperature rating demanded by the 4JG1 engine's oil cooling system, maintaining consistent flow under continuous generator load.
- Direct-Fit for DCA-45USJ — Matches the original routing, end fittings, and hose diameter exactly, connecting to the oil cooler circuit without modification to brackets or fittings.
- Confirmed Fitment — Verified for the Multiquip DCA-45USJ ultra-silent diesel generator equipped with the Isuzu 4JG1 engine.
- Protects Engine Oil Temperature — A sound oil cooler feed hose keeps oil circulating through the cooler at the correct rate, preventing oil temperature from climbing and protecting engine internals during extended run cycles.
- Leak Prevention at the Source — Hose degradation in the oil cooling circuit can lead to oil starvation and unplanned shutdowns; replacing a worn hose with this OEM unit restores circuit integrity before damage occurs.
The feed oil cooler hose routes engine oil from the engine block to the oil cooler, where heat is transferred away before the oil returns to lubricate critical engine components. On a continuously running generator like the DCA-45USJ, the oil cooling circuit works hard to keep operating temperatures stable — a cracked, swollen, or collapsed hose restricts flow, causes oil to overheat, and accelerates wear on bearings and other internal parts. Replacing a degraded hose promptly with part number this part restores proper oil circulation and helps the engine maintain safe, stable operating temperatures.
Need help confirming this is the right part for your machine? Contact the DHS Equipment team with your model and serial number and we will verify fitment before you order.
Part Details
| Part Number | 8972405920 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hose Feed Oil Cooler 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.
