MotoRad Cooling System Adapter, metallic

I was able to use this with my Motorad MT300 radiator pressure tester. Worked well for my Ford Edge to determine it didn't have a cooling system leak.

I used this product for a somewhat unusual purpose. My ancient 1997 Mercury Grand Marquis has a major coolant leak through the engine gaskets. Choices included taking apart the engine and replacing the gaskets (more than the car is worth); replacing the engine (a lot more than the car would be worth when completed); filling up the overflow reservoir 2-3 times a day (seriously, that is how fast it was leaking recently). A friend who is my mechanic recommended taking the cooling system pressure down to 7 psi from its current 16 psi, then trying a gasket sealer liquid additive, which might have a chance to work if the pressure were not so high. (I put some K-Seal in and it stopped the leak for about two days until the high pressure blew it out.) However, the car does not take a regular radiator cap, and there are no 7 psi threaded caps for the pressurized overflow reservoir. The mechanic found this adapter that he would use for a pressure tester. I bought it, and then he replaced the overflow reservoir cap with this adapter and a new 7 psi radiator cap on top. I was just barely able to close the hood without hitting the cap. I put some Bars Leak additive in, and I have only added a half of an overflow reservoir of coolant/water in 17 days since. Not sure if this will save the old car much longer, but it has been a miracle so far. Threads perfectly (but tightly) onto the overflow reservoir and seals fine against the reservoir and the radiator cap.

Bought this adapter for testing Peterbilt plastic radiator tanks. It is the correct thread pitch and same as ford tanks. Works great and 1/2 the price of a snapon tool

Doesn't fit peterbilt or kenworth coolant reservoirs

I bought this hoping that it would work on Volvo semi trucks because I am a diesel technician that used to work on a lot of Volvos. It is slightly too big for that. Of course, I was taking a shot in the dark with that one, so I'm not mad about it. It does by chance fit on Freightliner Semis, so in that sense it is also useful to me. I picked up the other adapter off of the tool truck. It was about the same price.

This does the job correctly. Works on some of my GM and Ford vehicles.

Awesome product, fits ford f150 surge tanks like a glove!

Not a good fit.

good for Freightliner Cascadia 2019 detroit engine DD15

as advertised.

This adapter fits my 2016 Freightliner Cascadia. Delivery fast and easy return if you buy the wrong one.

Does what it's suppose to