COMP Cams Top Dead Center Stop Tool- 18mm Bolt Style 20-OTL-NG-4XL slim design for improved agility

slim design for improved agility in a tight footwell setting

Replacement sensor only

Features Air Lifts Lifetime Warranty

m system" allows 30" of angle adjustment and 360" rotation of bracket assembly for incredible mounting versatility

Pumps with aluminum housings have 1/4"NPT inlet/outlet fittings

COMP Cams Top Dead Center Stop Tool- 18mm Bolt Style 20-OTL-NG-4XL slim design for improved agilityCOMP Cams Top Dead Center Stops are designed to positively stop the piston in order to find top dead center. The bolt style screws into the spark plug hole, while our universal plate type bolts across any cylinder bore when the heads are off. Designed for heads on applications, this piston stop features 18mm thread for use in Big Block Ford engines. Positively stop piston in order to find Top Dead Center (TDC); Bolt style screws into spark plug hole