B & K Proline 888-574HC Quarter Turn Ceramic Cartridge for 12″ Sillcock

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“We were able to buy parts for our antique toilet here! Unfortunately, the toilet fell off the wall so we had to return the parts before we got the chance to use them. But returning was quick and easy! The staff is super helpful. ”
-Dori M.
09/23/2023

$41.27

 

The Mueller B&K 888-574HC is a 12-inch replacement stem assembly designed specifically for quarter-turn, anti-siphon, frost-free sillcocks. It is used to repair outdoor faucets that have developed leaks or failed internal flow control, typically serving as a direct replacement for B&K models 104-821 through 104-831 and 104-791 through 104-799.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 75721 Category: Tag:

Repair your leaky outdoor faucet with the genuine B&K ProLine 888-574HC 12-inch Stem Repair Kit. Designed for fast, reliable repair of 12-inch anti-siphon frost-free sillcocks, this complete kit replaces the internal components of popular 1/4 turn faucet models, ensuring smooth, leak-free operation.

 

888-574HC

 

  • The kit typically includes the stem assembly, washers, and packing material needed for installation.
  • Stem measures 15 1/8″

 

Customer submitted images. 

 

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“They had my part shipped the same day. I mistakenly checked that I would pick the part up at the store and they fixed it in minutes. ”
-Michael F.
01/04/2026