Mansfield 8" Stem 123-0093 | Noels Plumbing Supply

“Mansfield by Prier M-123-0094 500 Series 10″ Stem Assembly” has been added to your cart. View cart

Copper hydrant stem with bright brass threaded end with brass screw black rubber washers stainless spring with graphite packing and metal washer.

Mansfield by Prier M-123-0090 500 Series 4" Stem Assembly - Image 2

Mansfield by Prier M-123-0090 500 Series 4" Stem Assembly - Image 3

Mansfield by Prier M-123-0090 500 Series 4" Stem Assembly - Image 4

WHAT OUR CUSTOMERS SAY…

“Just before an event, we had a 9 7/8" round drain cover snap in half. It was an odd size and Noel's was the only place that seemed to have one that would fit. We couldn't leave the hole exposed during the event, and Noel's was kind enough to make sure it was overnighted to us. Their effort was truly appreciated and the cover fit perfectly! I highly recommend them! ”

-Linda C.

03/27/2026

$43.27

The Mansfield M-123-0090 (also known as Prier M-123-0090) is a replacement stem assembly for “Old Style” Mansfield 500 series frost-proof wall hydrants manufactured between 1970 and 2006.

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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Mansfield Stem Assembly for 4″ Series 500 Hydrant

M-123-0090

This is a replacement stem assembly used to repair leaking issues behind the handle of a compatible wall hydrant without needing to replace the entire unit. It is a “cold” function stem.
It is designed for the “Old Style” full-turn Mansfield 500 series hydrants only and is not interchangeable with other models. It works with specific models like the 578-08 or 579-08 hydrants.
The stem has an overall length (OAL) of 8 inches and is designed for an 4-inch freeze-proof sillcock.

Related Documents

500 Series Faucet Parts Breakdown

UPC:670210370028

Customer submitted images.

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…

“Really great experience getting parts for my 30-year old frost free silcocks. They not only had the parts available, but they were shipped within a couple of hours. Great job, thank you! ”

-Phil R

02/08/2026