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Mansfield by Prier M-231-3208 400 Series 8″ Stem Assembly

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“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

$48.47

 

The Mansfield M-231-3208 is a specific part number for a Prier Products 8-inch Style H stem assembly designed for 400 Diamond Series freezeless wall hydrants. This part is used for repairing a leaking or broken hydrant stem without needing to replace the entire wall hydrant assembly.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, asknoel@noelsplumbingsupply.com, or via the text widget on this screen.

SKU: 13146A Category: Tags: ,

Stop dealing with a leaking outdoor faucet and fix it yourself with the Prier M-231-3208 8″ Wall Hydrant Replacement Stem. Specifically engineered for the Mansfield Style 400 Diamond Series freezeless wall hydrants, this genuine OEM stem restores your faucet’s tight shut-off and critical frost-proof performance. Instead of cutting into your walls to replace the entire valve assembly, this DIY-friendly drop-in stem lets you fix the leak from the outside using only a screwdriver and pliers.

 

M-231-3208

 

  • It is specifically for use in an 8-inch nominal length 400 Series hydrant.
  • 10 1/2″ Overall length
  • Made by Prier Products

 

Related Documents

 

400 Series Faucet Parts Breakdown

 

UPC:670210373371

 

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…

“I just wanted to say - you guys rock. I got my order one day after I placed it, and the part works great and let me get my guest shower back up and running. Thank you so much! ”
-Micah C.
05/31/2023