Multiquip 8941116191 Turbocharger Stud DCA-45USJ 4JG1

The Multiquip 8941116191 is a genuine OEM Turbocharger Stud DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent diesel generator. As a direct OEM replacement, this stud is sourced to the original specification and provides a precise, secure connection between the turbocharger and the engine exhaust manifold. Verified fitment for the DCA-45USJ makes this the straightforward choice when servicing or rebuilding the turbo assembly on that unit.

Key Features

• Genuine OEM Material Grade — Manufactured to the original thread specification and tensile rating required to withstand the high-heat, high-vibration environment of a turbocharged diesel exhaust manifold.
• Direct Drop-In Replacement — Matches the original stud dimensions and thread pitch on the DCA-45USJ 4JG1 engine, so installation seats cleanly without rework or re-tapping.
• Confirmed Fitment for DCA-45USJ — Engineered specifically for the DCA-45USJ ultra-silent series powered by the Isuzu 4JG1 diesel engine.
• Maintains Turbocharger Clamping Integrity — A correctly torqued stud keeps the turbocharger flange sealed against exhaust gases; a damaged or missing stud leads to exhaust leaks, power loss, and accelerated turbo wear.
• Exhaust System Safety — A compromised turbocharger mounting stud can allow hot exhaust gases to escape the manifold joint, creating a burn hazard and masking engine performance issues. Using the correct OEM stud restores the designed sealing pressure.

The turbocharger stud is a threaded fastener that anchors the turbocharger housing to the engine exhaust manifold, holding the assembly under sustained heat and mechanical stress. It works in combination with nuts and gaskets to create an airtight exhaust seal that allows the turbocharger to build boost pressure efficiently. When a stud stretches, corrodes, or breaks, the turbocharger can shift position or leak exhaust gases, which directly reduces generator output power and can cause uneven loading on the remaining fasteners.

For questions about part fitment or to confirm compatibility with your DCA-45USJ serial configuration, contact the DHS Equipment parts team before ordering.

Part Details

Compatibility & Fitment

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.