The Multiquip 9041308400 is a genuine OEM Exhaust Manifold Stud DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent diesel generator. Sourced directly from Multiquip, this stud is engineered to the exact thread pitch, length, and material grade specified for the 4JG1 engine used in this generator series. Fitment is confirmed for the DCA-45USJ, ensuring a direct, bolt-on installation with no guesswork. Keeping the exhaust manifold properly fastened is critical to safe, efficient generator operation, and the part delivers the correct OEM component to get the job done right.
Key Features
- Genuine OEM Material Grade — Manufactured to the exact tensile strength and thread specification required to withstand the thermal cycling and vibration loads of the 4JG1 diesel exhaust system.
- Direct Installation Fit — Matches the original stud dimensions thread-for-thread, seating flush into the exhaust manifold mounting points without rework or modification.
- Confirmed Fitment for DCA-45USJ — Verified compatible with the DCA-45USJ ultra-silent generator series powered by the Isuzu 4JG1 engine.
- Maintains Exhaust Seal Integrity — A correctly torqued, undamaged manifold stud keeps the exhaust gasket under even clamping pressure, preventing exhaust leaks that can affect engine efficiency and operator safety.
- Safety-Critical Fastener — Exhaust manifold studs are a structural part of the hot-side exhaust path; using the correct OEM specification stud helps prevent stud failure, exhaust blowby, and potential heat hazards in enclosed or confined operating environments.
The exhaust manifold stud is a hardened fastener that anchors the exhaust manifold securely to the engine's cylinder head. It must maintain clamping force through repeated heat expansion and contraction cycles as the engine warms up and cools down. When a stud stretches, corrodes, or breaks, the exhaust manifold can loosen, allowing hot exhaust gases to escape at the joint — reducing engine performance, creating excessive heat near surrounding components, and posing a safety risk to operators and equipment. Replacing a worn or damaged stud promptly with the correct OEM part restores a proper exhaust seal and protects the integrity of the manifold gasket.
Part Details
| Part Number | 9041308400 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Exhaust Manifold Stud 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.
Multiquip
Multiquip 8973503170 Exhaust Manifold Gasket DCA-45USJ 4JG1
