B & K Proline 889-558 8" Frost Free Sillcock Stem

Bright brass stem with black orings washer and metal clip.

B & K Proline 889-558 8" Frost Free Sillcock Stem - Image 3

B & K Proline 889-558 8" Frost Free Sillcock Stem - Image 4

WHAT OUR CUSTOMERS SAY…

“The cartridge in my kitchen sink broke last week so I've been without that sink for a whole week. I ordered a replacement from Noel's, which I could not find anywhere else and it worked perfectly. Thank you! You saved me! ”

-Matt F.

09/19/2025

$35.17

The B&K 889-558 is a stem/cartridge replacement kit for an 8-inch B&K ProLine frost-free sillcock (outdoor faucet).

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: 52143 Category: Hydrant Hose Faucet Parts Tag: B & K Products

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Restore your outdoor faucet’s performance with this genuine B&K ProLine replacement stem. Designed for 8-inch anti-siphon frost-free sillcocks, this kit includes the stem, cartridge, and necessary packing to stop leaks and repair faulty shut-offs. Featuring a durable brass stem with an overall length of 11-11/16″, this assembly is compatible with older model Quartermaster series 104-841 through 141-851.

889-558

This kit is designed for repairing or replacing the internal stem assembly in anti-siphon, frost-free sillcock valves.
11 5/8″ length
Quartermaster models 104-841 through 141-851

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