GMPartsGiant.com offers the wholesale prices for genuine 2022 Cadillac XT6 parts. Parts like Brake Pressure Modulator Valve are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.0L, 6 Cyl 3.6L. Model Code: Base X-Over 4 Door, Luxury X-Over 4 Door, Sport X-Over 4 Door.