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CYLINDER LEAK DOWN TEST KIT - S & G Tool Aid

Part #: 33500

The S & G Tool Aid 33500 Cylinder Leak Down Test Kit is an indispensable diagnostic tool for professional automotive technicians and mechanics, designed to accurately assess the internal condition of an engine without extensive disassembly. This kit precisely measures the percentage of cylinder leakage, enabling rapid identification of issues such as worn piston rings, burnt valves, or compromised head gaskets, which can lead to engine performance problems.

Key Features

  • Precise Leakage Measurement: The kit features dual 2-1/2? gauges with protective rubber boots, providing accurate readings of both cylinder leakage percentage and cylinder pressure, up to 100 psi / 7 bar, for comprehensive diagnostics.
  • Professional-Grade Durability: Constructed for rigorous use in demanding shop environments, this tool offers reliability and a long service life.
  • Versatile Engine Compatibility: Includes multiple spark plug adapters (10mm, 12mm, 14mm, and 18mm) and a 24-1/2? testing hose with 14mm end threads, accommodating a wide range of gasoline engines.
  • Enhanced Accuracy: An integrated 0.04? orifice restriction fitting increases testing precision.
  • Efficient Operation: Equipped with quick-connect fittings for the test hose and gauges, ensuring easy setup and streamlined use.
  • Top Dead Center Whistle: Comes with a top dead center whistle that can be connected to the testing hose, aiding in proper cylinder positioning.

Applications

This cylinder leak down tester is ideal for diagnosing various internal engine problems across a diverse range of gasoline-powered vehicles. It is commonly utilized by professional technicians for accurately pinpointing sources of compression loss, evaluating valve seating, assessing piston ring wear, and checking the integrity of head gaskets. This kit is invaluable for pre-purchase inspections, routine engine health assessments, and efficiently troubleshooting specific engine performance complaints like misfires, rough idling, or a loss of power. Leak-down tests are recognized as a more accurate method than standard compression tests for detailed engine diagnostics.

Only 2 left in stock - order soon Inventory available from other suppliers, prices may be different

$87.96

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This product was added to our catalog on Sunday 07 June, 2026.

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