Air cut off valve (ACV) for the Honda CB400T, CX500 and many more. Once the old diaphragms become stiff due to age or they develop holes, they no longer function properly. Save yourself tuning troubles an pick up some fresh cut off valves! This set comes with the spring, o-ring and diaphragm. Some bikes had one air cut off valve per carburetor, some just had one for a pair of carbs. Please check to make sure how many you need prior to ordering. NOTE: The 2nd fitment list below has all the models that also used this diaphragm and o-ring but the Spring was different in those models. The spring in this kit will not work.

• Honda Part Number: 16048-413-004
• Fits Honda: XL250S - 1978-1979
 CB400A Hondamatic - 1978 
CB400TI Hawk I - 1978-1979 CB400TII Hawk II - 1978-1979 CM400A Hondamatic - 1979 
CM400T - 1979 CX500 - 1978-1979 CX500C Custom - 1979 
CX500D Deluxe - 1979

Honda Part Number: 16048-413-0044into1