Yuesstloo Turbo System Leakage Tester Kit — 19PCS 0–6 bar Gauge & Adapter Set for Turbo Hoses (Fits 31–110mm)

The Yuesstloo 19PCS Turbo System Leakage Tester Kit is a complete shop-grade set for locating and diagnosing leaks in turbocharger hoses, intercoolers and cooling-system pipes using compressed air up to 6 bar.

If your turbocharged vehicle is losing boost or showing inconsistent pressure, this kit gives you a reliable, portable way to pressurize and inspect the turbo plumbing. It combines a calibrated 0–6 bar (0–87 psi) gauge with a pressure regulator, quick shut-off valve and a collection of 16 stepped adaptors that fit a wide range of hose diameters. Built for workshop air sources, the tools make leak tracing faster and reduce guesswork during troubleshooting.

How does the kit pinpoint where boost pressure is escaping?

The set pressurizes the intake or intercooler plumbing so you can observe pressure stability and listen or feel for leaks. The gauge and regulator let you introduce controlled pressure while the assortment of adaptors and stoppers create tight seals on different hose sizes.

• Use the stepped adaptors to match hose inner diameters from about 31 mm to 110 mm.
• Lock or adjust pressure with the regulator and gasket-sealed fittings for steady readings.
• Listen, spray soapy water, or inspect connection points and intercooler seams for bubbling or air escape.

What components are included and what hose sizes will it fit?

The kit contains 16 stepped adaptors, a pressure gauge with integrated regulator and shut-off valve, and a smoke adaptor for enhanced leak detection. The stepped adaptor range covers common pipe inner diameters used on passenger and light commercial turbo systems.

• Adaptors accommodate pipes roughly 31–38mm, 46–51mm, 55–60mm, 65–70mm and up to 105–110mm.
• Pressure gauge measures 0–6 bar (0–87 psi) with a locking dialing feature for steady readings.
• Red manual valve and excess-pressure release provide safe control during pressurization.

How is the Yuesstloo tester used safely in a workshop?

Designed for use with a regulated compressed-air source, the procedure is straightforward: isolate the section to test, fit an appropriately sized adaptor or stopper, then pressurize slowly while monitoring the gauge. The regulator and release valve help prevent over-pressurization when setting up and conducting checks.

• Always pre-set the regulator to a low pressure before connecting to the vehicle.
• Block intake and exhaust paths with stoppers to limit the pressurized volume and improve sensitivity.
• If pressure climbs too high, pull the excess pressure release or open the red valve to reduce pressure safely.

Can this kit test systems other than turbo hoses?

Yes — although optimized for turbocharger plumbing, the adaptors and gauge work on many radiators, coolers and general pipe assemblies that accept stepped sealing plugs. It’s versatile for shops that service intercoolers, charge pipes and some cooling circuits.

• Suitable for most car and light commercial turbo systems; some heavy-duty and marine hoses may require verification.
• Works with radiator and cooler hose sections where adapters fit tightly.
• Useful for preliminary diagnostics before more invasive disassembly.

Who this is for: technicians, DIY enthusiasts and fleet maintenance teams who need a compact, repeatable method to locate boost and coolant-line leaks. If you run a workshop or perform turbo system repairs, this Yuesstloo kit reduces guessing, speeds diagnosis and helps you confirm repairs without expensive bench equipment. Confirm adapter fit for your specific vehicle hoses before purchase to ensure compatibility.