Bicos Diesel Engine Compression Tester Kit 0–1000 PSI Gauge with Glow Plug & Injector Adapters

Bicos Diesel Engine Compression Tester Kit is a complete diagnostic set with a 0–1000 PSI gauge, release valve, flexible hose, and multiple glow plug and injector adapters for accurate cylinder pressure testing on diesel vehicles.

When troubleshooting compression-related issues in diesel engines, reliable pressure readings make the difference between a quick repair and unnecessary parts replacement. This Bicos kit combines a high-range analog gauge with a selection of adapters to fit common glow plug and injector openings, helping you verify cylinder health, compare readings across cylinders, and isolate faults on cars, trucks, tractors and other diesel machines.

How accurate and durable is the 0–1000 PSI gauge for diesel diagnostics?

The included gauge reads up to 1000 PSI (about 70 bar) and features a built-in release valve for controlled depressurization. Its clear dial and robust housing are designed for workshop use so you can get repeatable readings under typical repair conditions.

• 0–1000 PSI (0–70 bar) range for heavy-duty diesel engines
• Mechanical needle display for instant visual comparison between cylinders
• Release valve allows safe pressure reduction after each test
• Sturdy construction to withstand shop handling

What adapters are included and which engines will they fit?

The set contains multiple glow plug and injector adaptors to accommodate a broad range of diesel engine ports used in passenger cars, commercial trucks and agricultural equipment. The assortment makes it easy to service engines with different thread sizes or connector types without jury-rigging fittings.

• Nine glow plug adapters to match common glow plug bore sizes
• Four injector adapters for various injector seat configurations
• Flexible hose accepts adapters quickly and seals for accurate measurement
• Adapters cover many OEM and aftermarket diesel models

How do I use this kit to identify bad cylinders or injector issues?

Testing compression with the Bicos kit follows standard procedures: remove the glow plug or injector, screw in the matching adapter, crank the engine while monitoring peak pressure, and compare results across cylinders. Significant variance between cylinders or abnormally low readings indicate potential issues such as worn rings, valves, or head gasket leaks.

• Remove glow plug or injector and install the correct adapter
• Attach flexible hose and gauge, crank engine for several compression strokes
• Record peak PSI for each cylinder and compare values
• Use release valve to safely vent pressure after each test

What maintenance or care does the kit require to stay reliable?

Keep the gauge and adapters clean, store them dry, and avoid dropping the gauge to preserve calibration and extend service life. Periodically inspect adapter seals and the hose for cracks or wear, and replace any damaged parts to maintain accurate readings.

• Wipe connectors and hose after use to remove oil and debris
• Store in a dry tool case to prevent corrosion
• Check adapter threads and seals for damage before each use
• Replace the hose or gauge if readings become inconsistent

Who is this for? The Bicos Diesel Compression Tester Kit is built for professional mechanics, fleet technicians, and DIY diesel owners who need a reliable, versatile toolset to diagnose cylinder pressure problems across a range of vehicles. If you regularly service diesel cars, light- or heavy-duty trucks, tractors, or other diesel equipment and want fast, comparable pressure readings without needing multiple specialty tools, this kit is designed to meet those needs.