POWEREX CM300DY-28H

Marsoni

M251S

$665.50

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

POWEREX CM300DY-28HCM300DY28H POWER SUPPLY MODULE 1. 4KV 300A DUAL TRANSISTOR POLARITY DC COLLECTOR CURRENT 1400V

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Installed a few months ago, before the winter. I was chasing a no-start after replacing the old battery. We've seen single digit temps in the meantime and it is working well. The fit is perfect in a 2010 focus. If you can slide it in from the side and not drop it in from the top, you can replace it without taking off the intake manifold. There are useful videos online showing this. Good luck!

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Reviewed in the United States on December 28, 2025

Verified Purchase

Chris C.

Louisville, US

★★★★★ 1

Will be returned as soon as I have a replacement.

When engine is cold starter works fine with engine is hot. It will free wheel the starter motor, but not kick the starter gear into the ring gear on the motor. Watch video and listen it actually did it twice at this location but I didn’t catch the first one on the video.

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Reviewed in the United States on December 25, 2025

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Jesus morales

Pawtucket, US

★★★★★ 5

Good fit

Works great and very affordable price

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Reviewed in the United States on January 30, 2025

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Billy snead