Four Adapter Set: You get 4 car compression tester adapters with thread sizes: 10mm × 1.0, 12mm × 1.25, 18mm × 1.5, and 16mm × 1.5. Multiple engine types are supported. Check thread specs before ordering to confirm compatibility
Wide Compatibility: This car engine compression tester adapter kit works on various gas engines. Motorcycles, snowmobiles, outboard motors, and lawn mowers are all covered. Fits testers with 14mm × 1.25 thread (model W80579 and similar). Verify before buying
Precision Cut Threads: These spark plug adapters use precision-cut threads for a strong fit. The spark plug stays tight against the tester. A rubber ring improves sealing. Threads resist damage from repeated use over time
Brass for Durability: Our car compression tester adapter is brass. High strength and hardness are given. The structure is sturdy and stable. Wear resistance is strong. High-temperature conditions are handled for long-term stable performance
Quick Attachment: No extra tools or complex steps are needed. Attach the adapter to the threaded connector. Connect to the engine port. Start the test. Accurate compression readings are provided. An essential tool for engine maintenance