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Single Handle Faucet Cartridge for Olympia 3900003 FL02GJ

Green and tan plastic cartridge with red limit stop white square handle connection and black rubber seal.
Single Handle Faucet Cartridge for Olympia 3900003 FL02GJ - Image 2
Green and tan plastic cartridge with red limit stop white square handle connection and black rubber seal.
Single Handle Faucet Cartridge for Olympia 3900003 FL02GJ - Image 4

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“Noel's Plumbing Supply found this place on Google maps. In and out service. The person I was speaking to the desk offered me a selection knew exactly what I needed price was really reasonable. You don't know how much it means to a homeowner to be able to come in without any run around trying to sell you something you don't need. I recommend this establishment to all my family and friends. ”
-Steve C

$27.47

 

The Olympia 3900003 (also referenced as OP-390003) is a single-lever ceramic faucet cartridge used for repairing leaks or controlling water flow in specific kitchen, lavatory, and shower faucets.

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.

The Olympia 3900003 (OP-390003) is a single-handle ceramic disc faucet cartridge designed for repairing leaks and controlling water flow in specific kitchen and bathroom sink faucets. This durable, easy-to-install cartridge is used in Olympia faucet models, including K5020/K5025, to ensure consistent performance.

 

3900003    FL02GJ

 

  • Fits numerous single-handle kitchen and shower faucets for Pioneer and Olympia.
  • 2 3/8″ Length
  • 35 MM diameter
  • Square broach

 

This cartridge has replaced the original yellow and red cartridge below. 

 

Bright yellow and tan cartridge with red limit stop white square handle connection and grey rubber seal.

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…

“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
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