Orion Motor Tech Turbo Boost Leak Tester Set 1.2–3.5" Kit with 0–70 PSI Gauge & Smoke Adapter

Orion Motor Tech's Turbo Boost Leak Tester Set is a complete pressure-and-smoke diagnostic kit that lets you test turbocharger, intake, cooling, and emissions lines for leaks across hose sizes from 1.2" to 3.5".

This kit combines stepped adapters, blanking plugs, a 0–70 psi gauge assembly and a smoke-adapter option in a blow-molded case so you can quickly isolate boost or vacuum leaks at the turbo, intercooler piping, and related hoses on cars and light trucks. All fittings are molded from durable nylon and metal for shop use, and the kit includes gloves and a DIN adapter for common workshop air lines. Whether you need to pressure-test a charge pipe or introduce smoke for visual leak detection, the set covers the most common sizes technicians encounter.

How do I use this kit to find a boost leak?

Attach the stepped adapter that best matches the hose outer diameter, connect the gauge assembly to your workshop airline, and pressurize the circuit to a safe test pressure. Listen for audible leaks and watch the gauge for pressure decay; for hard-to-see areas use the smoke adapter with a smoke machine to reveal leak paths.

• Select one of six stepped adapter sizes to match 1.2"–3.5" hoses
• Use the blanking adapters to isolate sections or cap openings
• Pressurize with the included 0–70 psi gauge; observe for pressure drop
• Attach smoke adapter to introduce visible smoke for hard-to-detect leaks

Which adapters are included and what hose sizes do they cover?

The kit contains six stepped test adapters, each providing two outer-diameter steps to fit a wide range of hoses and piping. This covers outer diameters of 1.2", 1.4", 1.8", 2.0", 2.2", 2.3", 2.6", 2.7", 3.0", 3.1", 3.3" and 3.5" so most charge and vacuum hoses used on cars and light trucks are supported.

• Six stepped test adapters for multiple OD sizes
• Six blanking adapters to cap off openings securely
• DIN adapter for common workshop airline fittings
• Smoke adapter included for compatible smoke generators

What parts of the turbo system can this tester diagnose?

Use the kit on intercooler end tanks, silicone couplers, charge piping, vacuum lines, EGR and PCV hoses, and turbo inlet/outlet flanges. It helps isolate leaks that cause poor boost response, uneven idle, or pressure loss without disassembling the whole intake tract.

• Intercooler and charge-pipe connections
• Turbo inlet/outlet hose and flange joints
• Vacuum lines, EGR and PCV hoses
• Cooling-system hoses and emissions plumbing where applicable

How durable and portable is the kit for frequent shop use?

Components are made from premium nylon and metal to resist wear, and the included blow-molded storage case keeps adapters organized and protected. The compact case and included gloves make it easy to carry between bays and maintain a clean workstation.

• Nylon and metal construction resists shop wear
• Blow-molded case for organized storage and transport
• Gloves supplied for cleaner handling and safer tests
• Gauge rated 0–70 psi for common diagnostic pressures

Who is this for: Orion Motor Tech's Turbo Boost Leak Tester Set is designed for professional mechanics, performance shops, and experienced DIYers who need a flexible, durable tool to pinpoint boost and vacuum leaks on cars and light trucks. It’s most useful when you want to verify system integrity, troubleshoot poor boost behavior, or visually locate leaks with smoke rather than tear down assemblies prematurely.