The Multiquip 8941678860 is a genuine OEM Fuel Filter Plug Gasket designed for the DCA-45USJ ultra-silent diesel generator. This Isuzu 4JG1 engine-specific gasket seals the fuel filter plug to prevent fuel leaks and maintain a clean, pressurized fuel circuit. Sourced directly from Multiquip, part 8941678860 delivers the exact fit and material specification required for this application. Confirm your model code DCA-45USJ before ordering to ensure correct fitment.
Key Features
- OEM Sealing Material — Manufactured to the exact compound and compression specification required for the 4JG1 engine's fuel filter plug seat, ensuring a leak-free seal under operating fuel pressure.
- Direct Drop-In Replacement — Matches the original plug and housing dimensions on DCA-45USJ units so the gasket seats correctly without trimming or adjustment.
- Confirmed Fitment — Verified for the Multiquip DCA-45USJ ultra-silent series powered by the Isuzu 4JG1 engine.
- Fuel System Integrity — A correctly sealed fuel filter plug keeps unfiltered fuel and air out of the injection system, protecting injectors and sustaining consistent generator output.
- Fuel Leak Prevention — A worn or damaged plug gasket can allow diesel seepage at the filter housing, creating a fire hazard and contamination risk; replacing it promptly restores safe operation.
The fuel filter plug gasket creates a compression seal between the fuel filter plug and its housing on the Isuzu 4JG1 engine. Without an intact gasket, fuel can escape at the plug joint, introducing air into the fuel system and potentially causing hard-starting, rough running, or complete fuel starvation in the generator. Replacing a degraded gasket during routine filter service is a low-cost step that protects the entire downstream fuel system.
For fitment questions or help confirming this part is correct for your DCA-45USJ, contact the DHS Equipment team.
Part Details
| Part Number | 8941678860 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Fuel Filter Plug Gasket 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.
