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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

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“Love Noel's Plumbing Supply! They are one of my favorite oddball plumbing parts purveyors. As a professional plumber, I rely on sites like Noel's to keep antique and rare fixtures alive. My customers and I are so grateful! ”
-Danielle E.
03/25/2026

$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…

“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
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