This filter allows ventilation of the crankcase, removing combustion bypass gases. These gases contain oil vapors, and the breather filter traps the oil and contaminants

1200 series 1204E-E44TA, 1204E-E44TTA, 1204F-E44TA, 1204F-E44TTA, 1206E-E66TA, 1206E-E70TTA, 1206F-E66TA, 1206F-E70TA, 1206F-E70TTA