Multiquip B1925200254 Isuzu AA-4LE2 Engine

The Multiquip B1925200254 is a genuine OEM Isuzu AA-4LE2 Engine designed for DCA25USI, DCA25USIXF, DCA25USI2XF, and DCA25 ultra-silent diesel generator models. As a direct OEM replacement sourced through Multiquip's authorized parts program, this engine assembly meets the exact specifications of the original unit — ensuring correct mounting, electrical integration, and output compatibility. Verified fitment across the DCA25 ultra-silent generator family makes B1925200254 the correct choice when a full engine replacement is required. DHS Equipment supplies this part as a genuine Multiquip component, backed by OEM part number accuracy.

Key Features

• Genuine OEM Isuzu Powerplant — Authentic Isuzu AA-4LE2 engine assembly sourced directly through Multiquip's OEM parts program, delivering the correct displacement, torque curve, and fuel consumption profile for DCA25-series generator output demands.
• Direct-Mount Replacement — Engineered to install into the existing DCA25 generator frame with correct bolt pattern, coupling interface, and accessory drive alignment — no fabrication or adaptation needed.
• Confirmed DCA25 Family Fitment — Fits DCA25USI, DCA25USIXF, DCA25USI2XF, and DCA25 ultra-silent diesel generator models; use your model code to verify before ordering.
• Restores Full Rated Generator Output — A worn or failed engine causes voltage instability, load-shedding, and generator shutdown. Replacing with the correct Isuzu AA-4LE2 restores rated power delivery and stable frequency output.
• Fuel System and Emissions Compliance — The Isuzu AA-4LE2 is built to meet the emissions and fuel system specifications required for the DCA25 platform, supporting compliant operation on regulated worksites.

The Isuzu AA-4LE2 is a compact, four-cylinder diesel engine that serves as the primary power source in Multiquip's DCA25 ultra-silent generator series. It drives the alternator to produce the stable AC power output the generator is rated for, and its operating characteristics — including governed RPM and fuel delivery — are matched precisely to the generator's electrical load requirements. When this engine degrades or fails, the generator loses the ability to maintain consistent voltage and frequency, making prompt replacement with the correct OEM unit essential to restoring reliable power output.

For fitment questions or parts support, contact DHS Equipment directly — our team can confirm compatibility for your specific DCA25 generator model before you order.

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.