Booster Unit Capacitor Cap for Cooling Fan [KO Propo] 45566

Booster Unit Capacitor Cap for Cooling Fan [KO Propo] 45566

Marsoni

M251S

$32.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Booster Unit Capacitor Cap for Cooling Fan [KO Propo] 45566KO Propo has release this new Cooling Fan Booster. This product is a boost circuit unit that connects between the receiver and the cooling fan, boosting the voltage to approximately 8V (input voltage range: 2. 5V and above) to increase the fan speed and air pressure, thereby improving the cooling efficiency of the motor and ESC. It can be easily installed by connecting the connector. Excluding cable the booster measures 28 x 11. 5 x 9mm.

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We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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No reason not to go OEM for this! Came with every possible gasket and seal I could need. Specifically for my Alpha One Gen 1 it took maybe 25-30 min to completely install. While you’re there check the base plate for wear and the other surrounding items like your water tube. Rather keep the lower unit off for an extra day to get another part than a catastrophic failure.

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Reviewed in the United States on September 9, 2025

Verified Purchase

Taylor 🤍

New York, US

★★★★★ 5

Husbands things

My husband bought this. I don’t know much about it but he has zero complaints. He bought it for a boat. He has fixed up 2 boats, sold one & we kept the other. So he apparently knows what to buy & how to use it.

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Reviewed in the United States on November 6, 2025

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Edward W.

Whiting, US

★★★★★ 4

Amazon is easy and fast . No problems the oarts was exactly as described.

liked that everything was in one bag . and could make sure everything was changed .

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Reviewed in the United States on August 3, 2020

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Justin Yeager

Alexandria, US

★★★★★ 5

Stay cool

Just what I needed, super fast shipping

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Reviewed in the United States on October 19, 2025

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Crimson

Los Angeles, US

★★★★★ 5

Outboard is Cooling

The repair kit arrived on time as scheduled. The kit contained everything needed to replace the Mercury 175 OptiMax impeller. The engine is cooling now and we are back on the water without issue. Easy replacement.

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Reviewed in the United States on July 5, 2023