... Quality System Certification. Cummins Clutch booster of 1608N-010(70#) 1.Bore:70 2.Applicable models:Dongfeng, Jiefang and other heavy vehicles3 ... -010,1608Z66-010,1608Z29-010,160801-T0400.The bore has 70#,75#,90#,100#,102#. The other self-developed products:Cummins ...