Direct replacement to OEM 3163530, for Cummins ISX engines.
Jake Brake Tool (7MM) feeler gauge or shim. The 7mm area is precision ground to +/- .0005 inch
Insert this tool between the slave pistons contact surface with the exhaust valve adjusting screw. The feeler gage must be inserted from the sides to clear the slave bridge.
The lash adjustment must be performed on both slave piston adjusting screws on each cylinder.
Manufactured with high standard steel anodized black finish, with great strength and a non-slip handle