OTC 5020 Diesel Compression Tester with Adapters This easy-to-use compression tester is designed for light- and medium-duty diesel engines equipped with glow plugs A dual-reading gauge featuring a push-button release valve measures compression to 1000 PSI and 7000 kPa The hose end has quick disconnect fittings The tester comes with glow plug and nozzle adapters in a handy storage case Services Cummins B C Navistar DT466/DT360 Ford/Navistar 6.9L 7.3L Detroit 6.2L 6.5L Hino diesel and Mitsubishi Fuso truck engines