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Olympia OP-340009 Pressure Balance Faucet Cartridge

Tan plastic cartridge with blue top red limit stop brass stem black rubber o-ring and black rubber seal.
Olympia OP-340009 Pressure Balance Faucet Cartridge - Image 2
Olympia OP-340009 Pressure Balance Faucet Cartridge - Image 3
Olympia OP-340009 Pressure Balance Faucet Cartridge - Image 4

chat iconWHAT OUR CUSTOMERS SAY…

“Y'all are amazing. I live in Texas and it's faster to order express from Noel's than go to local parts stores. Customers can text Noel's a picture of the part they need and Noel's will find that part or the equivalent and text the link. They have 2-3 day shipping available. The staff answers the phone quickly, politely and they know their stuff! The unit I needed plumbing parts for was built in the 30s. No matter, Noels has me covered. I highly recommend them. Thank you Noel's for your efficient, old school excellence combined with current technology! You have saved me so much time, money, and aggravation! A++++++ ”
-Thalia,
07/03/2026

$46.47

 

The Olympia OP-340009 is a single-handle pressure balance ceramic disc shower cartridge. It is a replacement cartridge designed to repair leaky shower valves, stop drips, and restore smooth handle operation.

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: 21915 Category: Tag:

Stop annoying drips and dangerous water temperature swings with the genuine Olympia OP-340009 pressure balance ceramic disc cartridge. Built for single-handle tub and shower systems, this replacement valve core restores smooth handle control and stops leaks at the source. It is an exact-fit replacement for older Olympia part numbers OP-340008 and OP-440058.

 

OP-340009 

 

  • Ceramic disc pressure balance cartridge.
  • Pioneer Industries, Inc., under the Olympia brand name.
  • It is specifically designed to fit various Olympia tub and shower valves, including models like the T-2370, T-2372, P-2300B-B, P-2307B, P-2308B, P-2309B, and P-2407B. It is also known as OLYMPIA™ Part# 379870 and replaces older models OP-340008 and OP-440058.
  • It includes a limit ring to adjust the desired maximum hot water temperature for added safety.
  • 3″ Length
  • Square or regular broach

 

Customer submitted images. 

 

Common questions about this product

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM 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.

 

 

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

chat iconWHAT OUR CUSTOMERS SAY…

“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”
-Kimberly S.
04/25/2026
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