Check the listing for details. Compression Tester Adapter Kit, 9 Pcs Automotive Engine Cylinder Leak Down Compr. Condition: New. Listed at 58.46 USD. Design Features: Incorporating the latest adapter technology not only establishes a more stable connection, but it also addresses any worries about adapters becoming stuck on the vehicle, making your work smoother and more seamless. Safety and Durability: The engine compression test kit includes a sealing accessory kit that can be replaced at any time. This reduces concerns about adapter aging or leaks, extending the lifespan of your compression tester and ensuring hassle-free usage. Convenient Operation: With a 25-inch extra-long hose, advanced pressure gauge, and quick-connect adapters, you can effortlessly perform tests at any angle or position, significantly enhancing your work efficiency. High Adaptability: Our compression test kit comes with five.