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

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Bright brass stem and cartridge with red rubber o-rings black rubber washers and stainless washers and screw.

B & K Proline 888-574HC Quarter Turn Ceramic Cartridge for 12" Sillcock - Image 2

B & K Proline 888-574HC Quarter Turn Ceramic Cartridge for 12" Sillcock - Image 4

WHAT OUR CUSTOMERS SAY…

“I am a very small customer (a homeowner) but I will continue to purchase from you! Thank you again! ”

-James V.

12/28/2022

$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: Hydrant Hose Faucet Parts Tag: B & K Products

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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

Yes, this is the OEM recommended part.

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.

WHAT OUR CUSTOMERS SAY…

“These people were extremely helpful in taking me through replacing a 25 year old hard water frozen cartridge on my Philrich sink faucet. They were able to identify the correct part I needed from a photo I sent (I had it figured out wrong). I was pleasantly surprised they had an obscure part like this, but they also told me how to extract the old one when I couldn’t get it out. They said to unscrew it after I had concluded from YouTube the old cartridge was supposed to just slide out. It threaded out as they said and saved me buying a cartridge extractor and a hernia. The whole experience has been excellent. ”

-Pete L.

03/10/2026