TPU · £3–5 · 2 working days
Hydraulic coupling dust cap
1/2" and 3/8" ISO A quick-release couplings on tractors and implements.
What goes wrong with the original.
Lost in the field, or perished until they no longer seal. An unprotected coupling picks up grit, and grit is what eventually ruins the coupling itself.
TPU
It needs to stretch over the coupling and grip. TPU is flexible, oil-tolerant, and does not crack in cold weather the way a hard plastic cap does.
Orientation, infill and fixings
Printed in one piece with a tether loop so it stays with the implement. Sized from the coupling series, so tell us which.
Stated plainly
A dust cap, not a pressure component. It keeps dirt out; it does not hold hydraulic pressure and is never fitted to a live line.
£3–5 · indicative
Quoted properly from your photograph. Ready in about 2 working days from the original or a good picture; batches take a little longer and cost less per part.
Send a photograph of yours.
Yours will differ from the one described here — they always do. The picture tells us how.
Other parts in this sheet.
ASA · Free with RTK corrections
RTK GNSS antenna mount for a tractor roof
Any survey-style GNSS antenna with a 5/8" × 11 TPI thread, on a flat or gently curved cab roof
Details →ASA · £6–9
Electric fence gate handle body
Standard spring-loaded insulated gate handles, most makes
Details →PETG · £5–8
Water trough float valve arm
Lever-type float valves on cattle and sheep troughs — send a photo, they vary by make
Details →