Compatible with direct and indirect petrol engines which have 10, 12, 14 or 18mm spark plug threads.It acurately detects common engine faults such as worn piston rings, worn valves, cracked cylinder heads...

The Draper 12 Piece Diesel Compression Test Kit is compatible with direct and indirect fuel injection systems. It comes fitted with a spring-loaded pressure relief valve and an integrated Schrader one-way...

This Draper product accurately tests oil pump pressure whilst also testing switch and warning indicators. It comes fitted with a spring-loaded pressure relief valve and an integrated Schrader one-way valve...

This Tester is compatible with direct and indirect petrol engines which use 14 and 18mm spark plug threads. The dual reading pressure gauge 0-300psi/0-20BAR is fitted with a heavy duty rubber protector.This...

This Hi-Gauge Compression Tester is a tool for measuring and recording the pressure created by the piston in each cylinder. This information is used to diagnose faults in valves, pistons, piston rings,...

Expert Quality, compatible with direct and indirect petrol engines which use 10, 12, 14 and 18mm spark plug threads. Attached with a digital LCD display gauge with a choice of three pressure settings 0-300psi/0-20BAR/0-2000kPa...

The Gunson G4055B Hi-Gauge Adaptor Kit 12mm has been designed to convert the thread on Colortune and Hi Gauge Compression Testers to fit most popular sizes of sparkplugs that are fitted to a variety of...