Rated 4 out of 5 stars.
This is a cylinder leak-down tester for gasoline engines.

Brand new, unbranded/generic, made in China.

Part number WT04A1020.

Use it to find worn rings, bad valves, head gasket leaks, or cracked heads.

Gauges read differential pressure so you know exactly how much percentage you're losing.
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One year warranty.
