Multiquip 6221631103 Water Pump Assembly DCA-150SSK/180SSK

The Multiquip 6221631103 Water Pump Assembly DCA-150SSK/180SSK is a genuine OEM component designed for the DCA-150SSK ultra-silent diesel generator series. Sourced directly from Multiquip, this assembly ensures the cooling system operates exactly as engineered — maintaining proper coolant flow and preventing thermal overload during extended generator operation. Confirmed fitment for the DCA-150SSK, with cross-applicability to the DCA-180SSK as indicated in the part description.

Key Features

• Genuine OEM Cooling System Integrity — Built to the exact flow rate and pressure specifications required by the DCA-150SSK/180SSK cooling circuit, ensuring consistent thermal management under continuous load.
• Direct-Fit Assembly — Engineered as a complete pump assembly that mounts to the original attachment points, streamlining the replacement process without the need to source individual sub-components.
• Confirmed Fitment — Verified for DCA-150SSK and DCA-180SSK ultra-silent diesel generator models; always confirm your model code before ordering.
• Sustained Generator Output — A properly functioning water pump keeps coolant circulating at the correct rate, allowing the generator to deliver its rated output without thermal shutdowns or power derating.
• Critical Electrical System Protection — Adequate cooling protects the alternator windings and control electronics from heat damage, supporting safe, uninterrupted operation in demanding environments.

The water pump assembly is responsible for circulating coolant through the engine and heat exchanger in liquid-cooled diesel generators like the DCA-150SSK and DCA-180SSK. By maintaining steady coolant flow, it prevents the engine from overheating under sustained load — a common demand in rental, film production, and standby power applications where these ultra-silent units are frequently used. When the water pump wears out or fails, coolant circulation drops, engine temperatures rise rapidly, and the generator will trigger thermal protection shutdowns or sustain internal damage if left unaddressed.

For fitment questions or help confirming this part is correct for your machine, contact the DHS Equipment 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.