All 1967 289 Cougars with California emissions. Hose that connects from the air inlet assemble to the air pump. Molded hose, thicker in diameter than the other connecting rubber hoses. Inside diameter is about 1 inch. Kind of shaped like a "J". Fits C and A code 289 engines, 1967 Mercury Cougar and 1966-67 Ford Mustang and others. Hose only, no wire spring clamps, included.
Ford part number C6OE-9B458-B.