Proform Leakdown Tester Kit; Dual Gauge Model With14mm Spark Plug Hole Adapter 66839

This dual-gauge leakdown tester measures the condition of your head gaskets, piston rings, and valves. The gauge records incoming air pressure, and the right gauge records individual cylinder pressure - and the difference is you leakdown. Includes 14mm spark plug adapter.

Leakdown Tester Kit | Dual Gauge Model with14mm and 18mm Spark Plug Hole Adapters | White Dial Faces Are 2-1/2 Inch With Black Numbers | 2 Foot Hose Length | Regulator Is Included | Sold as One Complete Kit