Multiquip B3111100603 Fan

The Multiquip B3111100603 Fan is a genuine OEM component designed for the DCA and MQP series Super-Silent, Ultra-Silent, and Standby generator families, including models DCA36SPXU4F, DCA40SSKU4F2, DCA45SSIU4F, DCA70SSIU4F, DCA70SSJU4F, DCA70USI2. As a factory-sourced part, the part meets the original design specifications and integrates directly with your existing cooling system without guesswork. This fan is compatible across a broad range of Multiquip diesel generator models, making it the dependable choice for scheduled maintenance or emergency replacement on DCA40, DCA45, DCA70, MQP56, and related variants.

Key Features

• Genuine OEM Cooling Precision — Factory-sourced fan blade engineered to deliver the exact airflow volume and pitch required by Multiquip DCA and MQP generator cooling systems.
• Direct-Mount Replacement — Designed to bolt directly onto the engine cooling assembly with the correct hub bore and blade geometry, ensuring immediate installation without modification.
• Broad Generator Compatibility — Confirmed fitment across DCA36, DCA40, DCA45, DCA70, and MQP56 series diesel generators, covering both Super-Silent and Ultra-Silent configurations.
• Sustained Engine Temperature Control — A properly functioning fan maintains safe operating temperatures under continuous load; a worn or damaged fan risks thermal overload and unplanned generator shutdown.
• Electrical Safety Compliance — Correct fan specification is critical in enclosed generator sets where airflow directly protects sensitive alternator windings and engine electronics from heat damage.

The cooling fan in a diesel generator draws air across the radiator and engine block to dissipate heat generated during power production. In enclosed Super-Silent and Ultra-Silent units like the DCA and MQP series, this fan is essential to maintaining safe internal temperatures during sustained operation — particularly under high electrical load. When a fan blade cracks, becomes unbalanced, or fails entirely, airflow drops sharply, engine temperatures climb, and the generator will typically shut down on a thermal fault or sustain internal heat damage. Replacing the B3111100603 Fan with a genuine Multiquip part restores the designed airflow characteristics and protects the full generator system.

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.