Yonligonju Diesel Engine Compression Tester Kit — 17pc Blue, 0–1000 psi 80mm Dual-Scale Gauge

Yonligonju 17pc Diesel Engine Compression Tester Kit is a complete, professional-grade set that measures cylinder compression from 0–1000 psi (0–70 bar) with quick-connect adapters and a safety pressure relief valve for secure, accurate testing.

This 17-piece kit delivers a portable, durable solution for diagnosing diesel cylinder pressure across cars, trucks, generators and construction equipment. Built around an 80 mm dual-scale dial, oil-resistant high-pressure hose, and an array of adapters, the set aims to simplify compression checks while protecting the user and tool with an automatic relief mechanism.

How does this kit give reliable compression readings?

The large 80 mm dial provides clear, dual-scale readings in imperial (psi) and metric (bar), reducing interpretation errors. A high-elasticity hose and precision fittings maintain a tight seal to preserve pressure integrity from cylinder to gauge.

• 80 mm gauge face with 0–1000 psi and 0–70 bar scales for easy reading.
• Precision-machined adapters to match common diesel injector and glow-plug ports.
• Flexible, oil-resistant hose resists leaks and deformation under pressure.

What safety features protect users and the tool during testing?

The kit includes an independent pressure relief valve that releases excess pressure automatically, avoiding overpressure damage. The quick-connect design limits the time fittings are exposed to hot or pressurized conditions, further reducing risk during repeated tests.

• Built-in pressure relief device opens at unsafe pressure levels to prevent gauge failure.
• Tool-free quick-connect adapters reduce handling time and risk of cross-threading.
• Durable materials and pressure-rated hose lower the chance of bursting or cracking.

How easy is this set to use for DIYers and pros?

Adapters are designed for tool-free, rapid installation so you can connect and test cylinders quickly without specialized equipment. Its compact, lightweight case makes the kit portable for field service technicians, owners of diesel vehicles, and equipment maintenance crews.

• Quick-connect adapter architecture enables fast, tool-free hookups.
• Complete 17-piece assortment covers most diesel engines and service tasks.
• Compact kit size fits in shop bags or vehicle storage for on-site diagnostics.

What materials and build details ensure long-term performance?

The hose uses high-elasticity, oil- and wear-resistant compounds that resist aging and cracking under repeated exposure to heat and diesel fluids. Metal adapters and a robust gauge housing provide mechanical durability for professional shop environments.

• High-pressure hose (approx. 355 mm) retains flexibility in confined engine bays.
• Wear-resistant materials maintain sealing performance across many tests.
• Sturdy gauge housing and machined fittings resist shop wear and impacts.

Who is this for: The Yonligonju 17pc Diesel Engine Compression Tester Kit suits professional mechanics, fleet maintenance teams, construction equipment technicians, and hands-on diesel vehicle owners who need an accurate, portable compression test solution. It balances user-friendly quick-connect features with professional-level accuracy and safety, making it appropriate for standardized diagnostic checks as well as occasional DIY troubleshooting.