Pressure Balance Cartridge for Mainline WC0501 RP20131

chat iconWHAT OUR CUSTOMERS SAY…

“Thank you for exact part. Just received and replaced and worked out great! ”
-Karl D.
09/05/2025

$58.27

 

The Mainline WC0501 is a replacement cartridge designed for specific pressure-balanced tub and shower valves. It is primarily used to fix leaks or restore water flow control in Mainline’s shower systems.

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.

SKU: 84191 Category: Tag:

Single Handle Washerless Cartridge for Mainline

 

WC0501

 

  • For use with 458V, 458V-LS and 458V-PEX
  • 5″ length
  • 40 MM Diameter

 

This cartridges replaces the original red cartridge below. 

 

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…

“We were looking for a cartridge that not only matched the bottom holes but that would have the splines & you knew our cartridge had an additional piece which would not have spines on the new replacement We received the replacement cartridge yesterday; we replaced the old today & happy to say it fits perfect. Thank you for your great information and the speedy shipping. Should we need other supplies in the future, we will certainly contact your business. ”
-Leah l.
01/26/2023