AISIN is the world’s number one for water pumps. For decades we have used our expertise and innovative leadership to provide the very best products for OEMs including Toyota and many others. Today we also produce aftermarket water pumps for Japanese and European cars. Our designs and manufacturing processes deliver improved strength in body design, with carbon ceramic mechanical seals that protect against leaks. OE-matched replacements ensure that precise water pressure is achieved, protecting the engine against excessive heat.