CSF 20 psi radiator cap
Direct replacement for NA, NB, NC and ND. This 20 psi version is higher pressure than the factory Mazda 16 psi cap.
Fits 1990-2005 NA & NB factory radiators
Fits 1990-2005 NA & NB CSF radiators
Fits 2006-2015 NC factory plastic expansion tank
Fits 2006-2015 NC Moroso aluminum expansion tank
Fits 2016+ ND
This is the same cap that comes included with NA/NB CSF radiators.
Purchased for a Moroso replacement aluminum tank. Fit perfectly, better than the stock cap which it replaced.
What can I say, it's a radiator cap, well made OEM part.