JKC
Installation & Care Guide

Diverter Cartridge for High Flow Diverter

Follow along and check off each step as you go — most customers finish in about 10 minutes.

~10 minutes
6 simple steps
No power tools required
Model JKC-424
Step 0

Before You Start

Tap each item as you gather it — a couple of minutes of prep now saves a return later.

Tools You'll Need

What's In The Box

Verify before you start: This cartridge measures 44mm in body diameter and 85mm in overall height, with a 9.5mm x 9.5mm square drive head, designed for Jaguar-style high flow diverters. Compare these measurements to your existing cartridge before beginning.
Installation

Step-by-Step Fitting

Six quick steps to swap your worn diverter cartridge for a precision-fit replacement.

Hands full? Have the steps read out loud instead.
0 of 6 steps complete

Nice work — all steps complete!

Your diverter cartridge is replaced and tested. Enjoy smooth, leak-free switching.

Turn Off the Water Supply
~1 min
Locate the water supply for your bathroom or diverter mixer and turn it off completely before starting.
Remove the Diverter Handle
~2 min
Unscrew the diverter handle's fixing screw and lift the handle away to expose the old cartridge underneath.
Take care: If the handle screw is stiff or corroded, apply gentle, steady pressure — avoid excessive force that could damage the screw thread.
Take Out the Old Cartridge
~2 min
Gently pull out the old, worn cartridge from the diverter cavity, taking note of its orientation.
Insert the New JKC-424 Cartridge
~2 min
Insert the new JKC-424 cartridge into the cavity, aligning the square drive head with the handle socket, and press it fully into place.
Take care: Align the square drive head with the handle socket before pushing the cartridge fully into place — forcing it in at the wrong angle can damage the O-ring seals.
Reattach the Handle
~2 min
Place the handle back over the new cartridge's drive head and tighten the fixing screw firmly by hand.
Restore Water Supply & Test the Diverter
~2 min
Turn the water supply back on and test the diverter by switching between spout and shower a few times, checking for smooth operation and no leaks.
Take care: If flow feels uneven or the diverter doesn't switch smoothly, remove and reseat the cartridge before finishing.
Points To Take Care Of

Do's & Don'ts

The most common fitting mistakes — and how to avoid them.

Do

  • Verify the 44mm body diameter and 9.5mm x 9.5mm square head against your old cartridge before starting
  • Turn off the water supply fully before opening the diverter
  • Align the square drive head exactly with the handle socket before reassembling
  • Hand-tighten the handle screw firmly, then check it isn't loose
  • Keep the old cartridge until you've confirmed the new one works properly

Don't

  • Don't force the handle back on if it doesn't sit flush — recheck the cartridge alignment
  • Don't overtighten the handle screw with excessive force
  • Don't use pliers directly on the ceramic disc cartridge body
  • Don't skip the water-flow test before considering the job done
  • Don't discard your old cartridge until the new one is confirmed working
Quick Reference

Troubleshooting

If something doesn't feel right after fitting, check here first.

SymptomLikely CauseWhat To Do
Handle feels stiff or won't turn smoothly after fittingSquare head not fully seated in the handle socketRemove the handle, recheck alignment, and reseat it fully before retightening
Still leaking after replacementOld cartridge cavity not fully cleaned, or wrong cartridge sizeClean the cavity and re-verify your diverter's dimensions match this cartridge
Handle screw keeps looseningOvertightening damaged the screw thread, or vibration over timeCheck the screw and threading; avoid excessive force when tightening
Cartridge doesn't fit the cavityDiverter body isn't a matching Jaguar-style high flow diverterDouble-check compatibility before ordering, or contact support for guidance
Water flow uneven between spout and showerCartridge not fully rotated/seated during installationRemove and reinstall, ensuring the cartridge clicks fully into place
JKC

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