Mityvac Universal Radiator Adapter

Works great! No l;eakdown at all. Just remember that when they say the syurfaces must be dry, they mean it!

I use this all the time in my shop

The Mityvac MV4508 adapter was able to pressurize the system but not beyond 18 psi. This was enough to test the system, even though the cooling system in this application was rated for 20 psi. Beyond 18 psi the adapter would slip and pop out. Non of my specialized adapters would fit in this particular instance..

Every time I try to use it it pops out, bad design or faulty Manufacturing, I disassembled it, and modified it to work by putting the rubber on the opposite direction, no more popping out.

The older style works better, so I found and bought that one too. This one works okay, but does slip easier. And it's harder to tighten. We're trying to find coolant leaks... how can we expect to get the surfaces 100% dry before using it? I'll keep it for the rare case my other fittings don't fit.

Works great for refill coolant with air system

good product .

Make sure that the fill hole on the radiator is dry or this thing will smack you in the face or hit the hood of the car (I’ve seen it happen when I let other mechanics borrow this) it doesn’t fit all radiators like jaguar, vw, and some GMs with the pressure cap on the reservoir