Check the listing for details. ESD5160 Speed Control Unit (Authentic). Condition: Seller refurbished. Listed at 245.00 USD. Multi-V DC • For Cummins EFC Reverse Acting or Fire Pump Applications • Expanded Frequency Range 10.5 kHzAdjustable PIDIdle speed adjustmentAuxiliary accessory inputTemperature compensated availableSoft coupling options availableEFC reverse acting options availableEFC forward actingLight-force option availableThe ESD5100 Series speed control unit is an all- electronic device designed to control engine speed with fast and precise response to transient load changes. This closed loop control, when connected to a proportional electric actuator and supplied with a magnetic speed sensor signal, will control a wide variety of engines in an isochronous or droop mode. It is designed for high reliability and it's hard potted to withstand the engine environment.