Cap Testing Tool - Return line cap verification for Ford 6.9 / 7.3 IDI engines

If you would like a way to verify your new caps before installing them on the engine, or if you would like to try to re-use your old caps, then this is the tool for you! Includes everything you see in the photo, including: Pressure Regulator, fittings, hose, cap testing platform and 2 reusable nipple caps and 4 spare O-rings with a packet of our Moose Butter. Simply supply your own shop air, clear container and some water to submerge the testing platform with your test cap installed, and look for bubbles.