Description:

The rocker arm assembly for Type 1 QMB139 engines. Type 1 has a shorter head and 64mm valve stem length. If you have 69mm valve stem length and a taller head, you have the Type 2 engine. chances are your scooter is newer and/or was made by Zhejiang ZhongNeng aka Znen. Item Dimensions: 4" L x 2" W x 3" H.