The Multiquip 8970114882 Inlet Manifold DCA-45USJ 4JG1 is a genuine OEM inlet manifold designed for the DCA-45USJ ultra-silent diesel generator. As a direct OEM replacement, this manifold is sourced to the exact specification of the original component, ensuring a correct fit to the Isuzu 4JG1 engine used in the DCA-45USJ. Sourced through DHS Equipment, this part ships as a verified Multiquip OEM component — the right choice when you need the machine back up and running without compromise.
Key Features
- OEM Intake Path Integrity — Cast and ported to the original Isuzu 4JG1 specification, maintaining correct air-charge volume and distribution across all cylinders.
- Direct Bolt-On Replacement — Matches the original mounting flange pattern and port dimensions of the DCA-45USJ engine deck, installing exactly as the factory component did.
- Confirmed Fitment for DCA-45USJ — Engineered specifically for the DCA-45USJ ultra-silent generator platform; not a universal or adapted substitute.
- Protects Engine Combustion Efficiency — A correctly sealed and properly flowing intake manifold keeps air-fuel mixing consistent, preserving generator output stability and fuel economy under load.
- Emission and Air-Fuel Compliance — The intake manifold is a sealed part of the engine's air management system; an OEM-matched replacement supports the emissions calibration the DCA-45USJ was certified to meet.
The inlet manifold routes filtered air from the intake system into the engine's combustion chambers, distributing the air charge evenly across each cylinder of the Isuzu 4JG1. A warped, cracked, or leaking manifold allows unmetered air into the engine, disrupting the air-fuel ratio and causing rough running, reduced power output, increased fuel consumption, or hard starting. On a generator like the DCA-45USJ — where consistent power delivery is critical — a compromised intake manifold can cause voltage instability under load. Replacing a damaged manifold with a genuine OEM part restores proper sealing and airflow geometry to the engine.
Part Details
| Part Number | 8970114882 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Inlet Manifold 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.
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