B & K Proline 888-185 Frost Free Sillcock Stem for 4" Faucet

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Brass stem with white plastic nut with black o-ring and black washer.

B & K Proline 888-185 Frost Free Sillcock Stem for 4" Faucet - Image 2

B & K Proline 888-185 Frost Free Sillcock Stem for 4" Faucet - Image 3

B & K Proline 888-185 Frost Free Sillcock Stem for 4" Faucet - Image 4

B & K Proline 888-185 Frost Free Sillcock Stem for 4" Faucet - Image 5

B & K Proline 888-185 Frost Free Sillcock Stem for 4" Faucet - Image 6

WHAT 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

$20.87

The B&K Products 888-185 is a replacement stem for a 4-inch anti-siphon, frost-free sillcock (outdoor faucet), designed to replace the internal components of aging or damaged B&K faucets.

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: 44399 Category: Hydrant Hose Faucet Parts Tag: B & K Products

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B & K Products Frost Free Sillcock Stem

888-185

Replaces the internal workings of older sillcocks, providing flow control and preventing freezing.
For 4″ faucet
Stem measures 7″
Part of the ProLine Series Frost Free Sillcocks.

Customer submitted image.

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…

“I have been here a few times. And I have found it the most helpful and best place I've been to in this area. They explain to me what I need not what I'm trying to tell them what I want. Would recommend to anybody who needed help and plumbing parts. ”

-Joey F