Gasoline Engine Compression Test Kit 300 PSI J6S3QE

Measure cylinder cranking pressure through compatible spark-plug ports.

Compatibility and Application

Compatible gasoline automotive, marine and small engines using the included threaded adapters. Not for diesel engines.

Product Details

• Gauge rated to a maximum 300 psi
• Approximately 2.75 inch gauge with rubber boot and 10 inch whip hose
• 10 mm, 12 mm, 14 mm and 18 mm adapter arrangements and extension as pictured
• Molded storage case

Match adapter thread and reach to avoid engine damage. Follow the engine service test procedure and disable fuel and ignition as directed. Not a substitute for a dedicated leakdown tester; compare readings with vehicle specifications.