The Multiquip 5131001373 Oil Pump Assembly is a genuine OEM component designed for DCA40SSAI and DCA45SSIU2 series ultra-silent diesel generators. As a direct OEM replacement, this assembly is built to the same specifications as the original part, ensuring consistent oil pressure and proper engine lubrication across the operating range of these machines. Fitment covers the DCA45SSIU2, DCA45SSIU2-GEER, and DCA45SSIU2-FEMA variants in addition to the DCA40SSAI, making it a reliable stock part for fleets running multiple configurations within this generator family.
Key Features
- Genuine OEM Construction — Manufactured to the exact clearance tolerances required for consistent oil pressure delivery in Isuzu-powered DCA series generators.
- Direct-Fit Replacement — Mounts and connects using the original bolt pattern and port configuration, allowing straightforward installation without modification.
- Broad DCA Series Coverage — Compatible with DCA40SSAI, DCA45SSIU2, DCA45SSIU2-GEER, and DCA45SSIU2-FEMA generator models.
- Engine Lubrication Integrity — Maintains the oil flow rate the engine depends on to keep bearing surfaces protected under continuous load, which is critical in standby and prime power applications.
- Correct Part for Critical Service — The oil pump is a safety-critical engine component; using the verified OEM assembly ensures the pressure relief valve and pump geometry match the engine's original design intent.
The oil pump assembly is responsible for drawing engine oil from the sump and circulating it under pressure to the engine's bearings, camshaft, and other lubricated surfaces. In a diesel generator running at sustained load, consistent oil pressure is essential — a worn or failing pump causes oil starvation, which leads to accelerated bearing wear and, if left unaddressed, engine failure. Replacing the assembly with a genuine OEM unit like the Multiquip 5131001373 restores proper flow and pressure characteristics, protecting the engine investment in your DCA series generator.
Part Details
| Part Number | 5131001373 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Pump Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA40SSAI |
| Diesel Powered Generators | DCA45SSIU2 |
| Diesel Powered Generators | DCA45SSIU2-GEER |
| Diesel Powered Generators | DCA45SSIU2-FEMA |
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.
