The Multiquip 8973503170 is a genuine OEM Exhaust Manifold Gasket DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent diesel generator. Sourced directly from Multiquip, this part meets the exact material and sealing specifications of the original component. Fitment is confirmed for the DCA-45USJ, which is powered by the Isuzu 4JG1 diesel engine. When it comes to exhaust sealing on a generator used in noise-sensitive environments, only a correctly specified OEM gasket delivers the sealing integrity the application demands.
Key Features
- OEM Sealing Specification — Manufactured to the exact material grade and compression rating required by the Isuzu 4JG1 engine, ensuring a gas-tight seal at the exhaust manifold joint.
- Direct Drop-In Replacement — Matches the original bolt pattern and surface profile of the DCA-45USJ exhaust manifold, allowing a straightforward swap during routine service or repair.
- Confirmed DCA-45USJ Fitment — Engineered specifically for the DCA-45USJ ultra-silent generator with the Isuzu 4JG1 engine — no guesswork on compatibility.
- Prevents Exhaust Leaks — A failed or compressed exhaust manifold gasket allows hot gases to escape at the joint, which can cause power loss, increased emissions, and heat damage to surrounding components.
- Exhaust Integrity Matters on Silent Generators — On enclosed ultra-silent units like the DCA-45USJ, an exhaust leak compromises the acoustic enclosure's performance and can introduce harmful gases into the surrounding work area.
The exhaust manifold gasket forms the critical seal between the engine's exhaust manifold and the cylinder head, preventing hot combustion gases from escaping before they reach the exhaust system. On the Isuzu 4JG1 engine found in the DCA-45USJ, this gasket must withstand sustained high temperatures and cylinder pressure cycles without deteriorating. When the gasket fails, exhaust gases leak at the joint — leading to audible hissing, a drop in engine efficiency, potential heat damage to nearby wiring or enclosure panels, and in enclosed generator applications, a serious risk of fume buildup. Replacing it promptly with a correct OEM part restores full exhaust containment and protects the long-term health of the engine.
For questions about part 8973503170 or to confirm fitment for your DCA-45USJ, contact the DHS Equipment team directly.
Part Details
| Part Number | 8973503170 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Exhaust Manifold 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.
