1/2" Tap Head Part (G116015): Stop a Dripping Tap
By Maintenance Depot Plumbing Team · Last reviewed
Quick answer
The G116015 1/2" head part is the replaceable mechanism inside basin taps, bath taps and stop valves. Replacing it, with its brass stem and TPR washer, usually fixes a dripping tap.
A dripping tap wastes a surprising amount of water and is often fixed by replacing just one part. The 1/2" head part (G116015) is the working mechanism inside a tap or stop valve.
Specs at a glance
| Spec | Detail |
|---|---|
| Product | Tap head part |
| Model | G116015 |
| Size | 1/2" |
| Stem | Brass |
| Washer | TPR flat washer |
| Finish | Chrome polish |
| Fits | Basin taps, bath taps, stop valves |
Fits
- Basin taps
- Bath taps
- Stop valves
Features
- Brass stem
- TPR flat washer for a reliable seal
- Chrome polish finish
- Easy to install
Signs you need a new head part
- The tap drips even when fully closed
- The handle turns but the water won't shut off
- Stiff or grinding operation
How to replace it
- Shut off the water at the stop valve or main.
- Open the tap to drain the remaining water.
- Remove the handle and any decorative cover.
- Unscrew the old head part with a spanner, holding the tap body steady.
- Clean the valve seat inside the tap body.
- Screw in the new head part and tighten firmly, without forcing it.
- Refit the handle, restore water, and test.
Tips
- Take the old head part with you when shopping to compare size and thread.
- If the valve seat is badly worn or pitted, a new head may still drip. The tap body may need replacing.
Maintenance Depot stocks tap parts, handles and hose bib taps for quick repairs.
Frequently asked questions
Do I need to replace the whole tap if it drips?
Usually not. Replacing the head part often stops the drip.
How do I make sure I buy the right head part?
Take the old part with you to compare size and thread.
Why does my tap still drip after a new head?
The valve seat in the tap body may be worn or pitted.