380GLC - EXCAVATOR 3315 Controls Linkage Parts group 3315 Controls Linkage 3315 Controls Linkage . Electric Solenoid Valve Kit, 1 Way Single Pedal Propel Kit Two Way Auxiliary Foot Pedal Left Pilot Control Handle Pilot Controllers Auxiliary Control Pedals Direct Hydraulic Thumb Kit, With Coupler (Kits Built 28 June 2010 -) Direct Hydraulic Thumb Kit, Without Coupler (Kits Built 28 June 2010 -) Progressive Hydraulic Thumb Kit (Kits Built 28 June 2010 -)