The Multiquip 5156290490 is a genuine OEM Front Cover Gasket DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent diesel generator. Sourced directly from Multiquip, this gasket delivers an exact OEM-spec seal for the front cover assembly on the 4JG1 engine. If you're servicing a DCA-45USJ unit, using the correct OEM gasket is the only way to ensure a proper, leak-free fit between mating surfaces. DHS Equipment stocks this part and stands behind every genuine Multiquip component it sells.
Key Features
- OEM-Grade Sealing Material — Manufactured to Multiquip's exact material specification for the 4JG1 engine front cover, ensuring correct compression and sealing performance across operating temperatures.
- Direct-Fit Replacement — Matches the original gasket profile and bolt-hole pattern of the DCA-45USJ front cover assembly, dropping in without trimming or reworking mating surfaces.
- Confirmed DCA-45USJ Fitment — Engineered specifically for the DCA-45USJ ultra-silent diesel generator series; cross-reference part number 5156290490 before ordering to confirm application.
- Protects Engine Integrity — A correctly seated front cover gasket prevents oil leaks and contamination ingress that can accelerate wear on internal engine components and compromise generator output.
- Fuel and Oil System Safety — A failed or mismatched front cover gasket can allow oil to escape onto hot engine surfaces; using the correct OEM part maintains a safe operating condition on the generator set.
The front cover gasket forms a pressure-tight seal between the engine's front cover and the block, keeping oil contained within the lubrication circuit while preventing external contaminants from entering. On the 4JG1 diesel engine fitted to the DCA-45USJ, this gasket must withstand continuous heat cycling and oil pressure without deforming or losing its seal. When a front cover gasket fails or is improperly installed, oil leaks develop, lubrication is compromised, and the engine becomes vulnerable to accelerated internal wear — making prompt replacement with the correct OEM part essential to keeping the generator running reliably.
Part Details
| Part Number | 5156290490 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Front Cover 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.
