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Old 05-22-2022, 09:15 AM   #1
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Blower motor for older SF-25 furnace -- NBK vs MC?

Have an older Suburban SF-25 (pre - 012106952 S/N) with a noisy blower motor I'm looking to replace. (Rattles when shutting off.)

There seems to be two manufactures for the replacement motors -- NBK, like this one:
https://www.ebay.com/itm/175077005228

and MC Enterprises, like this one:
https://www.ebay.com/itm/324714649840

Anyone know if one is better than the other?
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Old 05-22-2022, 09:49 AM   #2
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Here are the part numbers for your model.

Suburban Part# 231706 Motor Assembly (SF-20/25/30)
Suburban Part# 350123 Room Air Blower Wheel
Suburban Part# 350128 Combustion Wheel

Just google "Suburban XXXXXX" <-- Replace Xs with the Part Number.

I believe your eBay links are the correct motor.

Good luck!
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Old 05-23-2022, 05:36 AM   #3
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As a repariman, I change a lot of motors. I have always used the MC motor because that's all I see. The NBK may be something new on the market. I would feel comfortable using either motor.
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Old 05-23-2022, 08:43 AM   #4
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Quote:
Originally Posted by A1RVTraveler View Post
As a repariman, I change a lot of motors. I have always used the MC motor because that's all I see. The NBK may be something new on the market. I would feel comfortable using either motor.
Thank you! I've ordered the NBK since it has faster shipping. I'll repot back how well it works after I get it installed.
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Old 05-26-2022, 07:19 PM   #5
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NBK motor seems okay, though maybe a touch louder than I had expected.
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