JKC
Installation & Care Guide

Flush Valve Spindle 32mm – Cera-Style Brass Repair Spindle

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

~10 minutes
8 simple steps
No power tools
Model JKC-1073
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: Compare your old spindle's thread diameter (32mm), overall length (93mm), and splined tip width (8.5mm) against this product before installing — fitment varies between flush valve models.
Installation

Step-by-Step Fitting

A simple swap you can complete in about 10 minutes — no plumber required.

Hands full? Have the steps read out loud instead.
0 of 8 steps complete

Nice work — all steps complete!

Your flush valve should now turn smoothly with no drips. Keep an eye on it over the next day.

Turn Off the Water Supply
~1 min
Locate the isolation valve or stop cock supplying your flush valve and turn it off completely.
Remove the Flush Valve Handle / Cap
~1 min
Unscrew or lift off the handle/cap covering the spindle, setting any screws aside safely.
Take care: Old caps can be stiff — apply steady, even pressure rather than forcing it.
Unscrew and Remove the Old Spindle
~2 min
Turn the old spindle counter-clockwise to unscrew it fully from the flush valve body.
Take care: If it feels stuck, avoid excessive force — a few drops of penetrating oil can help loosen an old, corroded spindle.
Compare Dimensions & Prepare the New Spindle
~1 min
Before fitting, compare your old spindle's thread diameter, length, and tip width against the new JKC spindle to confirm a match.
Thread In the New JKC Spindle
~2 min
Hand-thread the new spindle clockwise into the flush valve body, then snug it with an adjustable wrench.
Take care: Don't overtighten — this can damage the rubber seal and cause a new leak.
Reattach the Handle
~1 min
Refit the handle or cap back over the spindle and secure any setting screws.
Restore the Water Supply
~1 min
Turn the isolation valve or stop cock back on slowly, checking for drips at the joint as pressure returns.
Test for Smooth, Leak-Free Operation
~1 min
Turn the handle through a few full rotations, checking for smooth movement and no visible leaks around the spindle base.
Points To Take Care Of

Do's & Don'ts

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

Do

  • Compare your old spindle's dimensions against this product before starting
  • Turn off the water supply before removing any parts
  • Keep the old spindle until you've confirmed the new one fits and works
  • Hand-tighten the new spindle first, then snug it with a wrench
  • Test for smooth full-turn operation before closing everything up
  • Wipe the valve threads clean before fitting the new spindle

Don't

  • Don't overtighten the spindle — this can damage the rubber seal
  • Don't force the spindle if it doesn't thread in smoothly — recheck alignment
  • Don't discard your old spindle before confirming the new one works
  • Don't use excessive force on old, corroded mounting hardware
  • Don't skip the water-supply shutoff step
  • Don't mix parts from a different flush valve brand or type
Quick Reference

Troubleshooting

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

SymptomLikely CauseWhat To Do
New spindle won't thread inThread size or type doesn't match your flush valveConfirm your valve is Cera-style and the 32mm thread diameter matches before forcing it — contact support if unsure
Handle feels stiff after installationSpindle overtightened or seal seated incorrectlyBack off slightly and retighten to hand-tight plus a small turn with the wrench
Still leaking after replacementSpindle not fully seated, or valve body seal wasn't checkedConfirm the spindle is threaded in fully; contact support if the leak continues
Handle won't turn a full rotationDebris in the valve body or spindle misalignedRemove and reseat the spindle, checking for debris in the socket
Unsure if this fits your flush valveDimensions not verified before purchaseCompare your old spindle's measurements to this product's spec sheet, or contact JKC Emart support with a photo

Still need a hand?

Message our support team with your order details and we'll help you sort it out.

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