Genuine Mazda CX-7 Radiator Hose. This is the radiator hose that connect from the theromstat housing to the lower radiator hose. Check your belts and hoses every 15,000 miles. Always use genuine Mazda factory parts and accessories. Genuine Mazda CX-7 Accessories and Mazda CX-7 Parts offer the style, comfort, quality and satisfaction that make driving a Mazda CX-7 even more rewarding. Designed and guaranteed to fit your Mazda CX-7 perfectly inside and out, they are the only accessories built to the same quality standards as your Mazda CX-7.