Our Part Number: JH3903117
EXHAUST AND INTAKE VALVES FOR ROBIN EX17 & EX21 MOTORS.
Intake Height is about 68mm, the outside diameter at the base is about: 25.5mm and the diameter at the top is: 5.5mm
Exhaust Valve Height is about 68mm, the outside diameter at the base is about: 23.5mm and the diameter at the top is: 5.5mm
OEM: 277-33501-H3 , 277-33401-H3
