This OEM 39mm head gasket replaces original equipment on 50cc 139QMB scooters
Inner Diameter: 39mm
139QMB-based 50cc / 80cc engines with the following engine codes:
139QMA 139QMB 1P39QMB 1P39QMA-2
YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB
BN139QMB 147QMD Other QMA models Other QMB models
