11-18 Cadilllac Cts Ats Elr Left Front Seat Belt Buckle Tensioner (146) FOR SALE IS : LEFT FRONT SEAT BELT TENSIONER, GRAYCOLOR. 4 Cyl 2.0L, 4 Cyl 2.5L, 6 Cyl 3.6L. 2 DOOR COUPE, 2 DOOR LUXURY COUPE, 2 DOOR PERFORMANCE COUPE, 3 DOOR PREMIUM COUPE, 4...