Dana engineering-approved for fit, form and function. Part Type: Engine Coolant Thermostat Housing Gasket. Thermostat Hsg Gskt. 2014 Buick Regal Engine: 2.0L L4;EngineCode: LTG; EngineVIN: X;. 2015 Buick Regal Engine: 2.0L L4;EngineCode: LTG; EngineVIN: X;.