Prokomon Cylinder Leak Down Tester Kit — Grey Dual-Gauge Workshop Set with Adapters

This grey, workshop-ready set links to an air compressor to pressurize a cylinder and reveal where air is escaping—whether past piston rings, through valves, head gaskets, or cylinder cracks. The kit combines a twin-gauge manifold with a range of adapters, push-on connectors, and extension pieces so you can test most spark-plug-equipped gasoline engines without disassembling the top end.

How does this kit identify where an engine is leaking?

The Prokomon tester pressurizes a single cylinder and measures both input pressure and the percentage of leakage simultaneously. Observing the leak percentage while listening and feeling for escaping air points you to worn rings (air at the crankcase), leaking valves (air in the intake/exhaust), or head gasket issues (air in coolant passages).

• Dual gauges show supply pressure (0–100 psi / 0–7 bar) and leak rate (0–100%).
• Adapters let you seal the spark plug hole to pressurize the cylinder reliably.
• Detects leaks without removing pistons or heads—saves time and labor.

What components are included and how do they improve testing?

The kit builds on a basic manifold set by adding several handy connectors and extensions that increase versatility across engine types. A pressure-regulating valve and American-style air plug allow controlled input from a compressor, while push-on connectors simplify connection in tight spark-plug wells.

• Double-gauge manifold with an 18-inch hose and AR2000 pressure regulator for fine control.
• Two metal threaded adapters, two universal push-on connectors, and a rubber hose for various plug sizes.
• M14 aluminum extension rod and extra extension hose for deep or recessed plugs.

How accurate and compatible is the pressure reading on this tester?

The gauges measure supply and leakage with a stated accuracy of approximately 0.5%, covering the common diagnostic range for petrol engines. The pressure range and adapter selection make it suitable for most gasoline engines using spark plugs up to 20 mm thread diameter.

• Pressure scale from 0–100 psi (0–7 bar) useful for routine garage checks.
• Leak percentage readout helps quantify severity so you can prioritize repairs.
• Compatibility targets most spark-ignition engines; verify plug size and compressor settings before testing.

Who is this for: The Prokomon Engine Cylinder Leak Down Tester Kit suits professional mechanics, home DIYers, and automotive technicians who need a portable, accurate way to diagnose internal engine leakage without major teardown. If you perform engine troubleshooting regularly, work on a variety of petrol vehicles, or want a reliable tool to confirm suspected ring, valve, or gasket failures, this kit supplies the gauges and fittings to make informed repair decisions.