r/NewedgeMustang • u/rickytheyotatech • 16h ago
Question 99 Cobra overflow tank cap question
Today I decided to finally drain and refill my coolant on my 99 cobra along with a new coolant crossover pipe, radiator fan and an aluminum overflow/degasser tank. I bought an eBay tank because I didn’t feel like paying 300 bucks for a name brand one. When I was finishing up I tried to put the oem cap on but the cap was too large for the neck fill so I had no choice but to use the aluminum non venting cap. Is it ok to run the car with that style cap? When I let the car get to operating temp there were no leaks or any hoses popping off due to the pressure. Is there even an oem style cap that’ll fit the eBay tank? Or will I have to buy an OE/name brand aluminum tank?
