TradeINArt Multi-Function Cylinder Leak Down Tester Kit — Dual-Gauge 10-Piece Set for Gasoline Engines, Regulator

TradeINArt's Multi-Function Cylinder Leak Down Tester Kit is a complete dual-gauge diagnostic set that checks combustion chamber pressure and pinpoints leakage paths in gasoline engines.

If an engine is running rough, losing power, or burning oil, a controlled leak-down test helps identify where compression is escaping so you can target repairs. This compact kit bundles a double gauge assembly, pressure regulator, multiple adapters and extension hoses in a protective case so both DIYers and professional mechanics can run reliable tests on cars, motorcycles, ATVs and light trucks.

How does this kit measure cylinder condition?

The kit uses a pressurized air source to deliver a known pressure into a cylinder at top dead center and the dual gauges display input pressure and the resulting leakage percentage. By comparing the two readings you can estimate the percent of compression loss. The included pressure regulator lets you set and stabilize test pressure for consistent results.

• Dual gauge reads input pressure and leak-down rate simultaneously for fast diagnosis.
• Pull-out/push-in pressure regulator for precise adjustment and locking during testing.
• Straight and angled push-on connectors allow non-threaded access in many spark plug wells.
• Extension rod and long hose reach recessed or hard-to-access spark plug openings.

What engine types and sizes will this leak-down tester work on?

This TradeINArt kit is designed for gasoline engines across passenger cars, motorcycles, ATVs, small trucks and many light engines. The mix of threaded adapters, universal push-on fittings and an M14 extension lets you adapt to most spark plug well sizes and shallow or deep-seated plugs. It’s not intended for diesel high-compression engines without verifying compatibility first.

• Threaded adapters cover common spark plug thread sizes used in many petrol engines.
• Push-on connectors fit non-threaded or damaged plug wells for quicker checks.
• M14 extension and long hose reach deep-set spark plugs or multi-valve heads.
• Works with standard shop air compressors (verify pressure range before use).

What accessories are included and how do they improve testing?

The 10-piece kit expands a basic leak-down set with a broader selection of fittings and extensions so you can adapt to more vehicles without improvising. Aluminum and rubber construction balances durability with a lightweight feel, while the molded carrying case keeps parts organized and protected between jobs. These extras speed diagnosis and reduce the need to source separate adapters.

• Dual gauge assembly with built-in regulator for immediate, readable results.
• Two universal push-on connectors and two threaded adapters for fit flexibility.
• M14 extension rod and long-reaching hose to access recessed spark plug holes.
• Durable carrying case to organize and protect all components during storage and transport.

How do you interpret leak-down results safely and accurately?

Set the piston at top dead center on the compression stroke before pressurizing and record both the input pressure and leak percentage shown on the gauges. Small leakage numbers suggest healthy sealing; larger percentages indicate issues with rings, valves, head gasket or intake/exhaust ports. Use the audible and visual cues (air escaping from intake/exhaust, oil filler, or crankcase) to help localize the leak without relying on guesswork.

• Always rotate engine to TDC on the compression stroke before testing.
• Listen for escaping air in intake, exhaust, or crankcase to locate the leak path.
• Compare readings between cylinders for consistent diagnosis and follow-up testing.
• Depressurize and disconnect carefully after testing to avoid sudden air release.

Who is this for: The TradeINArt Multi-Function Cylinder Leak Down Tester Kit suits home mechanics, mobile technicians and small shop professionals who need a compact, adaptable leak-down solution. It’s perfect for troubleshooting misfires, poor compression and engine wear on gasoline-powered vehicles where a clear, repeatable leak-down readout helps decide whether to repair or rebuild.