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

chat iconWHAT OUR CUSTOMERS SAY…

“Stop in Noel's , the counter man was very friendly, knowledgeable, and handled me the part I needed with in 2 minutes. I also got some professional advice. I will buy all of my plumbing needs here in the future. We home owners need business like this . ”
-Eric O.
02/29/2020

$48.27

 

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.

SKU: 9pk2004 Category: Tag:

Fix leaky outdoor faucets instantly with the Arrowhead Brass PK2004 Replacement Stem Assembly. Designed specifically for 4-inch Arrowhead 420 Series frost-proof wall hydrants (420BFP), this genuine OEM replacement part ensures a perfect fit and reliable performance.

 

  • 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

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…

“Do you need a vintage plumbing part and nobody seems to be able to find it in your area? Save yourself time and hassle and go to Noel's Plumbing website. You can text them a photo of the part and they will find it in minutes and give you the link to order it, all at a competitive price. My plumbers seem incapable of doing this and hand the job off to me. What can you do? But Noel's always has the 1930s parts I need or the aftermarket part that will get the job done. If I need it fast I can get it in 2-3 days from them and they know exactly what they are doing. It's a good old-fashioned plumbing store with all the parts you could possibly need and people who know how to get them. The service is top level. The staff pick up the phone after one or two rings. They are polite and KNOWLEDGABLE. I'm so tired of dealing with folks who can't find a chicken in a hen house. LOL. ”
-Bry W.
06/23/2026