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Compression Tester

Compression Tester

SKU: 66219

Engine Cylinder Compression Tester Kit 8 pcs
Kit includes rubberized gauge and 4 adapters.

Kit come complete withadapters for most applications. Features and benefits:

  • Check the condition of your piston rings and valve seats
  • 3" gauge has dual color scale with 0-300 PSI, 0-20 kPa
  • Spark Plug thread adapter sizes: M10, M12, M14, M18. (these adapters cover every 99% of all engines domestic and import)
  • Long flex 20" 14 mm hose 
  • 2 Chrome rubber cone tipped extensions for easy push into plug hole and read fast testing
  • Brass corrosion resistant fittings
  • Spark plug adapters have O- ring for improved sealing
  • Easy pressure release button on side of tester 
  • Blow molded hard case
  • Quickly diagnose problems with pistons, rings, and valves
  • For all domestic and imported engines
  • Holds pressure then release with steel push button release valve
  • Rubberized protector for gauge
  • If the compression is low, put small amount of oil in cylinder and see if compression changes. If no change then the issue could be the valve seats or valve system operation like worn camshaft lobe. If the compression changes then the rings are suspect as to the problem. Tool helps detect the problem cylinder