Multiquip M3923200144 Isuzu 4HK1X Engine

The Multiquip M3923200144 Isuzu 4HK1X Engine is a genuine OEM engine assembly designed for DCA125USI3CAN and DCA125USI series ultra-silent diesel-powered generators. As a direct Multiquip OEM component, M3923200144 is sourced to the same specifications as the original unit installed at the factory, ensuring a correct, compatible fitment for these generator models. Verified compatibility covers the DCA125USI3CAN and DCA125USI — confirm your model code before ordering to ensure this is the right engine for your machine.

Key Features

• Genuine OEM Engine Assembly — Sourced directly through Multiquip as an authorized OEM component, matching the original Isuzu 4HK1X specification installed in production DCA125USI series generators.
• Isuzu 4HK1X Power Unit — The 4HK1X is a robust Isuzu diesel engine platform known for its consistent power output and thermal efficiency under continuous generator load demands.
• Direct-Fit Replacement — Engineered to mount and connect to the DCA125USI3CAN and DCA125USI generator frames using the original mounting points and interface connections, keeping installation straightforward.
• Verified Generator Series Fitment — Confirmed for DCA125USI3CAN and DCA125USI ultra-silent diesel generator models; check your serial plate model code against this part number before purchase.
• Sustained Generator Output — A correctly functioning Isuzu 4HK1X engine maintains stable voltage and frequency delivery from the generator; a failing or worn engine causes output instability, fuel inefficiency, and eventual shutdown.

The Isuzu 4HK1X is a four-cylinder diesel engine that serves as the primary power source in the DCA125USI series ultra-silent generators. It drives the alternator to produce electrical output, and its performance directly determines the generator's capacity to deliver stable, continuous power to connected loads. When this engine deteriorates — whether through wear, damage, or mechanical failure — the entire generator loses its ability to produce reliable power, making a proper engine replacement critical to restoring full operational capability.

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.