Multiquip 6155009100 Komatsu SA6D 125E-2 Engine

The Multiquip 6155009100 is a genuine OEM Komatsu SA6D 125E-2 Engine designed for the DCA-300SSK series ultra-silent diesel generators. As a direct OEM replacement, this engine is sourced to the exact specification used in original production, ensuring the power output, emissions compliance, and long-term durability that DCA-300SSK operators depend on. Confirmed fitment covers DCA-300SSK, DCA-300SSK2, and DCA-300SSK3 models, making it the correct choice for full engine replacement on these high-capacity units.

Key Features

• Genuine OEM Engine Assembly — Sourced directly from Multiquip to meet the exact displacement, output rating, and emissions standards specified for the DCA-300SSK series.
• Direct Drop-In Replacement — Engineered to match original mounting points, cooling connections, and fuel system interfaces on DCA-300SSK generator platforms.
• Confirmed Fitment — Compatible with DCA-300SSK, DCA-300SSK2, and DCA-300SSK3 super-silent diesel generators.
• Full Power Restoration — Restores the generator's rated output capacity, ensuring consistent voltage and frequency delivery for sensitive on-site electrical loads.
• Fuel System and Emissions Integrity — The SA6D 125E-2 configuration maintains the fuel injection and exhaust after-treatment setup required for compliant operation of these generator units.

The Komatsu SA6D 125E-2 is a six-cylinder, inline diesel engine that serves as the primary power source for the DCA-300SSK series super-silent generators. It drives the alternator to produce the generator's rated electrical output, and its design directly influences fuel efficiency, operating noise levels, and overall runtime reliability. When the engine degrades or fails, the generator loses the ability to deliver stable, rated power — making a correct OEM replacement critical to restoring full operational capacity rather than risking underperformance with a mismatched unit.

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.