513-721-5286 | 1-888-Ask-Noel | Mon-Fri: 8:00 AM – 5:00 PM
Account

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

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

chat iconWHAT OUR CUSTOMERS SAY…

“This place is amazing. I live in San Antonio, Texas and there are a few plumbing stores with vintage parts but they never have what I need and the ordering process takes them weeks. I found a rare part at Noels by reverse image search but they will do it for you. I've used them 3 times. Their agents are knowledgable and polite. They will find you the same part or the after market part and get you going on your way. They have 2-3 day shipping. My house was built in the 30's and they know exactly what the after market parts are that I need. I save money and time going to them. I sure wish they were in San Antonio! I will just go directly to Noel's next time - they are LEGENDS! ”
-BP W.
06/21/2026

$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…

“Order received and installed. Thank you very much (spoken mentally in my best Elvis voice). Really is nice to know that there is still a business out there that's got their act together! Appreciate the quick service and correct parts shipping. Thanks again.. jP ”
-Jack P.
04/02/2026
Account