Curt Manufacturing Curt 13575-56016-45050-40004-21500 Trailer Hitch and Tow Package 13575 Curt Hitch 45050 Ball Mount (Fits 2"x 2" receiver tubes) 40004 2" Ball 56016 CURT T-Connector / 4-way Flat Wiring Harness 21500 Pin & Clip Fits: 2007-2015 Mazda CX-9 All No Drilling Required. Hitch Install time:30 mins Wiring Install time:30 mins