Oni Tools Cam Lash Checking Fixture is a direct replacement to OEM parts number J-46303 or J46303. Our Camshaft Lash Checking Fixture designed to fit the Detroit Diesel 60 Series engine found in Freightliner Coronado, Columbia, Century Class and other trucks. This aftermarket specialty tool uses an embedded magnet to hold it to the cam gear. Heavy duty steel structure machined, welded and finished with powder coating to resist corrosion and ensure a long-term and reliable performance. Oni Tools ensures quality products and stands behind top of the line manufacturing. We guarantee our products to last and offer support along the way.