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Single Handle Faucet Cartridge for Olympia & Pioneer Faucets OP-340009

Tan cartridge with blue top and red ring. Long brass stem that can be cut to length.
Tan cartridge with blue top and red ring. Long brass stem that can be cut to length.
Tan cartridge with blue top and red ring. Long brass stem that can be cut to length.
Tan cartridge with blue top and red ring. Long brass stem that can be cut to length.

chat iconWHAT OUR CUSTOMERS SAY…

“Outstanding fast delivery on two pieces of an ancient Wolverine bath stem for Kohler - from the early 40s I think. The new one has a different body design, but it screwed directly into the old hot/cold tree and was the exact 6" length. Forty eight hours after installation now, and all remains fine. Also, kudos to the people who set up the website and ordering process. Great work - clear photos and info ! PS: I'm not an employee or family...lol. I retired from electrical wholesaling here outside Chicago and I appreciate a good job. ”
-JM C.
07/31/2026

$62.17

 

The Olympia OP-34009 is a 40mm single-handle pressure balance ceramic disc replacement cartridge designed to fix leaks and control water temperature in Olympia tub and shower valves

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: 66518-1 Category: Tags: ,

Designed specifically for single-lever Olympia tub and shower valves, this heavy-duty 40mm replacement cartridge delivers commercial-grade reliability right to your home bathroom. Whether your shower is leaking, the handle has become difficult to turn, or you are experiencing sudden bursts of freezing or scalding water, swapping in the OP-340009 provides an immediate, cost-effective DIY fix.

 

OP-340009

 

  • 7 1/2″ Length
  • 40 MM diameter
  • Pressure balance ceramic disc cartridge for single-lever faucets.
  • Maintains water temperature within a safe range to protect against sudden changes in water pressure (anti-scalding mechanism).

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…

“I have been here a few times. And I have found it the most helpful and best place I've been to in this area. They explain to me what I need not what I'm trying to tell them what I want. Would recommend to anybody who needed help and plumbing parts. ”
-Joey F
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