Compression Gauge Adapter - Kent-Moore

The Kent-Moore EN-47603 Compression Gauge Adapter is an OEM-specific tool engineered for precise cylinder compression testing across a wide range of late-model GM engines. This professional-grade adapter ensures a secure, leak-free connection between the engine's spark plug port and a standard compression gauge. This enables technicians to obtain consistently accurate and repeatable readings, crucial for informed diagnostic and repair decisions.

Key Features

• OEM-Correct Design: Developed by Kent-Moore specifically for GM powertrain applications, this adapter guarantees a factory-recommended fitment and connection, aligning with original equipment service information.
• Accurate Sealing: Features a precision sealing surface that minimizes pressure loss, maintaining an airtight connection at the spark plug port for reliable diagnostic data and reduced test-to-test variation.
• Professional-Duty Construction: Built for the rigorous demands of dealership and independent shop environments, its robust construction resists common wear and tear, including thread distortion during frequent use.
• Secure Thread Engagement: Engineered with specific geometry to help prevent cross-threading, ensuring positive and stable seating within the cylinder head during diagnostic procedures.
• Broad Compatibility: Seamlessly integrates with Kent-Moore compression testers and a wide array of other common compression gauges utilized in professional automotive diagnostic workflows.

Applications

The Kent-Moore EN-47603 Compression Gauge Adapter is essential whenever original equipment manufacturer (OEM) procedures specify its use for compression testing on applicable GM engines. Typical professional use cases include verifying cylinder compression during drivability and misfire diagnostics, confirming suspected mechanical issues such as worn piston rings, valve sealing problems, or head gasket leaks. It is also invaluable for documenting compression measurements before and after engine repairs or rebuilds, as well as for comprehensive used-vehicle inspections and warranty assessments where accurate cylinder pressure measurements are critical for applicable GM engines.