Leak Down Tester

The Leak Down Tester is an incredibly useful tool to diagnose overall engine health. Quick-connect fittings make setup simple, and the easy-to-read gauge provides precise readings. Narrow down problems in multiple engines with the 10, 12 & 14mm spark plug fittings! Quickly and easily diagnose internal engine problems, such as bad rings, valves, and leaking head gaskets. Easy setup with quick connect fittings. Includes 10, 12 & 14mm spark plug fittings. Easily adjustable regulator. Includes blow molded case for storage & transport.