The Tundra/4Runner/JL/FJ/Gladiator battery kits utilize a different type of smart isolator than the JK/Tacoma/Universal kits. The former uses a blue controller that is separate from the silver solenoid, while the latter uses a device that combines the two. Both types rated at 200A, but the split setup is necessary for hood clearance on those applications. On this kit, the 200A smart isolator is located in the center of the lid. The silver solenoid is mounted on top of the "smart" part of the device.