Dana engineering-approved for fit, form and function. Part Type: Engine Coolant Thermostat Gasket. Notes: Thermostat Case to Cylinder Head; Replaces OE Part Number(s) W700319-S300;. 2000 Ford Focus Engine: DOHC;EngineVIN: 3; Thermostat Case to Cylinder Head; Replaces OE Part Number(s) W700319-S300; Position: Inner;.