Arrowhead Brass PK2004 420 Series 4" Frost Proof Wall Hydrant Stem

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Copper stem with brass end with black rubber seals polished chrome handle connection.

WHAT OUR CUSTOMERS SAY…

“Sent Noel’s plumbing and image of what was needed, not being able to find it. They had it sent to me within a week and fitment was perfect. 👍 ”

-Lorenzo H.

03/12/2026

$37.27

The Arrowhead Brass PK2004 is a genuine replacement stem assembly designed for the 4-inch 420 Series frost-proof wall hydrant. It measures 8 inches in overall length and includes the packing nut, seals, and O-ring needed for repair.

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.

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Arrowhead 4″ Frost Proof Wall Hydrant Stem

Designed for use with the Arrowhead Brass 420 Series Anti-Siphon Wall Hydrant (specifically the 420BFP model).
420 Series stem assembly- 4″ hydrant (measures 8″ end to end).
Anti-siphon series with built in check assembly (PK2016).
12-pt handle spline.

PK2004

UPC:690043001418

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…

“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