The Multiquip 8943629233 is a genuine OEM Oil Pump Assembly DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent diesel generator. This is a direct OEM replacement sourced through Multiquip's authorized parts network, ensuring correct specification for the 4JG1 engine platform. If you're servicing a DCA-45USJ unit, this is the correct assembly to restore proper lubrication system function and get the machine back to full operation.
Key Features
- Genuine OEM Lubrication Spec — Manufactured to the exact flow rate and pressure tolerances required by the 4JG1 engine, ensuring the oil circuit performs as originally engineered.
- Direct Assembly Replacement — Supplied as a complete pump assembly, allowing a full swap of the lubrication unit without sourcing individual sub-components.
- Confirmed DCA-45USJ Fitment — Engineered specifically for the DCA-45USJ ultra-silent generator series; verify your model and engine code before ordering.
- Protects Engine Internals — A functioning oil pump maintains consistent pressure to bearings, journals, and moving engine components; a failing pump rapidly accelerates internal wear and can lead to catastrophic engine damage.
- Critical Fuel for Runtime Reliability — Generators used in continuous or standby duty depend on steady oil pressure; restoring this assembly keeps the 4JG1 engine operating within safe thermal and mechanical limits.
The oil pump is responsible for drawing engine oil from the sump and circulating it under pressure to all critical internal engine components, including bearings, the crankshaft, and the camshaft. Without adequate oil pressure, metal-on-metal contact occurs rapidly, generating heat and wear that can destroy an engine in a short period of operation. When the pump wears, loses prime, or fails entirely, low oil pressure warnings activate and the engine must be shut down immediately to prevent permanent damage — making prompt replacement with the correct OEM assembly essential for any DCA-45USJ in active service.
Part Details
| Part Number | 8943629233 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Pump Assembly 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.
