Club Car IQ/5K-0 High Torque Aggressive Terrain Package. For Club Car IQ (Including Precedent 2004 ) and 5K-0 throttle carts. 1996 and newer (some 1993, 1994, and 1996 cars and all other series carts. Identifier = Silver Curtis controller with green and yellow throttle wires. Speeds up to 18 MPH (stock tire size). Up to 70% torque increase. Includes High Torque Admiral motor (MOT-A4), 500 Amp Alltrax controller (CON-XCT500IQ) which includes fan assembly and universal mounting adapter, 3 Amp Diode (CON-004), Resistor precharge for 48V 400A solenoid (CON-035), and HD Solenoid (SOL-1022). Save money and take the guess work out of putting together the perfect package. Also recommend 4 gauge Battery Cable set (BAT-1019) and the controller mounting kit (CON-XCTUM-IQ or CON-XCTUM-DS). Great deal on a group of great products.