The Snap On Tools M3571 Diesel Compression Adapter is a vintage diagnostic service tool specifically designed for testing diesel engines. Made by the reputable brand Snap On, this compression tester is a reliable and durable tool that will help you accurately diagnose any issues with your diesel engine. With a 21mm injector size, this adapter is a must-have for any automotive mechanic or enthusiast looking to properly maintain and troubleshoot diesel vehicles.
