7880 14Mm Thread Top Dead Center Indicator Switch, Shift Indicator Replacement Part, 6′ Long

This Is A Top Dead Center Tool That Can Quickly Help You Find The Top Dead Center Of Your Car Engine. Metal Heavy Duty Steel Body With Heavy Duty Brass Plunger On Stainless Steel Spring As Motion Marker For Easy Reading Of Piston Movement. After Screwing It Into The Spark Plug Hole, You Will Know Exactly Whether The Piston Is Going Up Or Down With Every Turn Of The Crank. Shift Indicator Of Automotive Replacement Part.