Serpentine Belt Drive Component Kit. Accessory Belt Drive Kit. This part generally fits Ford vehicles and includes models such as Focus with the trims of LX Sedan 4-Door,SE Sedan 4-Door,SE Wago n 4-Door,ZTS Sedan 4-Door,ZTW Wagon 4-Door,ZX3 Hatchback 2-Door,ZX4 ST Sedan 4-Door,ZX5 Hatchback 4-Door.