This comprehensive gasoline engine compression test kit features an electronic tester that memorizes the peak compression value for each cylinder. When testing is complete, the values can be quickly reviewed at the push of a button. Everything is included to perform wet and dry compression tests commonly used to detect ring or cylinder head problems, sticking valves, blown head gasket(s) and more. Includes adapters for use on motorcycles and marine and small engines, and an air-hold adapter for performing valve seal repairs without removing the cylinder head(s). Not for use on diesel engines.

Includes:
• Digital compression tester comprised of test gauge with rubber boot, 10” (250mm) high-pressure hose and female, quick-release coupler.
• 14mm standard reach thread x 6.5” (165mm) hose adapter.
• 14mm standard reach thread x 12” (305mm) hose adapter.
• 14mm long reach thread x 12” (305mm) hose adapter.
• 18mm standard reach thread x 12” (305mm) hose adapter.
• 18mm long reach male thread x 14mm standard reach female thread plug adapter.
• 16mm male thread x 14mm female thread plug adapter.
• 10mm male thread x 14mm female thread plug adapter.
• 12mm male thread x 14mm female thread plug adapter.
• Air Hold Adapter for performing valve repairs.
• Field service kit with replacement Schrader valves and o-rings.
• Custom-molded case.