OEM parts categories for 2016 Cadillac Xts: Body Moldings, Sheet Metal, Rear Compartment Hardware, Roof Hardware (Insulators/Body, Moldings/Body-Lower, Moldings/Body-Upper, Plugs/Body, Rear Compartment Hardware, Sheet Metal/Body Side Frame & Doors, Sheet Metal/Body-Braces, Sheet Metal/Body-Engine Compartment & Dash, Sheet Metal/Body-Roof, Sheet Metal/Body-Side Frame, Sheet Metal/Body-Underbody & Rear End, Sunroof, Sunroof Drainage, Valve/Body Pressure Relief, Wheelhouse Liner/Rear) | Body Mounting, Air Conditioning, Audio/Entertainment (A/C & Heater Module Assembly, A/C Compressor Assembly, A/C Compressor Mounting, A/C Control System Sensor, A/C Refrigeration System, Air Distribution System, Antenna/Audio, Audio System/Speakers, Cable Kit-Communication, Cable Kit-Digital Radio & Mobile Telephone & Vehicle Locator, Cable Kit-Digital Radio & Vehicle Locator, Camera System/Cameras, Communication System "Onstar", Entertainment System, Infotainment System/Auxiliary Interface Module, Navigation System/Compass Module, Radio Mounting, Sensor/Temperature) | Body Wiring, Roof Trim (Wiring Harness/Body) | Brakes (Brake Booster, Brake Booster & Master Cylinder Mounting, Brake Caliper/Front, Brake Caliper/Rear, Brake Electrical System/Antilock, Brake Lines/Front, Brake Lines/Rear, Brake Master Cylinder, Brake Pedal, Brake Pressure Modulator Valve, Parking Brake Assembly, Parking Brake System) | Brakes, Rear Axle, Propeller Shaft, Wheels, Tires (Axle Shaft/Rear, Prop Shaft, Prop Shaft And Mounting, Rear Differential Carrier, Rear Differential Carrier Mounting, Spare Wheel Kit-Dealer Installed, Tire, Tire Inflator, Tire Pressure Sensor, Wheels & Wheel Covers) | Cooling System, Grille, Oil System (Air Deflector, Engine Block Heater, Engine Coolant Fan, Engine Oil Cooler/Hose, Grille/Radiator, Hoses & Pipes/Radiator, Pulleys & Belts/Accessory Drive, Radiator Assembly, Radiator Mounting & Related Parts) | Engine (Engine & Transmission Mounting, Engine Assembly & Partial Engine, Engine Assembly-Cylinder Block & Internal Parts, Engine Assembly-Cylinder Head & Related Parts, Engine Assembly-Front Cover & Cooling, Engine Assembly-Intercooler, Engine Assembly-Manifolds & Related Parts, Engine Assembly-Oil Pump & Balance Shaft Detail, Oil Pan & Related Parts, Engine Assembly-Timing Chain & Tensioner, Engine To Transmission Mounting, Intake Manifold Shield/Covers) | Frames, Springs, Shocks, Bumpers, Fascias (Absorber/Rear Shock, Bumper/Front, Bumper/Rear, Frame & Mounting, Level Control Compressor/Automatic, Suspension Controls/Electronic, Suspension/Rear-Control Arm & Springs, Suspension/Rear-Knuckle Details, Suspension/Rear-Shock Absorber & Stabilizer Bar, Suspension/Rear-Support And Mounting) | Front End Sheet Metal, Heater (Accessory Kit, Accessory Kit/Safety, Fender & Wheelhouse/Front End, Guard/Front Mud, Guard/Rear Mud, Hood, Hoses & Pipes/Heater, Labels, Paint/Touch-Up, Spare Wheel Stowage & Jack Parts, Spare Wheel Stowage & Jack Parts-Dealer Installed Kit) | Front Suspension, Steering (Drive Axle/Front Intermediate, Drive Shaft/Front Wheel, Steering Column, Steering Column/Switches & Covers, Steering Control System-Module, Steering Gear Assembly, Steering Pump Lines, Steering Pump Mounting, Steering System & Related Parts, Steering Wheel & Horn Parts, Strut Assembly/Front, Suspension/Front) | Fuel System, Exhaust, Emission System (Accelerator Control, Air Intake System, E.C.M. Module & Related Parts, Exhaust System/Front, Exhaust System/Rear, Fuel Control Module, Fuel Injector Rail, Fuel Supply System, Fuel Tank & Vapor Canister, Fuel Tank And Mounting, Fuel Tank Filler Pipes & Hoses, Heat Shields/Exhaust, Turbocharger Assembly, Turbocharger Cooling System-Front Unit, Turbocharger Cooling System-Rear Unit, Turbocharger Intercooler System, Turbocharger Lubrication System-Front Unit, Turbocharger Lubrication System-Rear Unit, Turbocharger Mounting-Front Unit, Turbocharger Mounting-Rear Unit, Turbocharger Wastegate System) | Interior Trim, Front Seat Trim, Seat Belts (Front Seat Mounting, Inflatable Restraint System/Driver & Passenger, Inflatable Restraint System/Roof Side, Roof Headliner, Seat Assembly/Driver-Back, Seat Assembly/Driver-Cushion, Seat Assembly/Passenger-Back, Seat Assembly/Passenger-Cushion, Seat Belt Extension, Seat Belts-Rear, Seat Belts/Front, Trim/Center Pillar & Quarter, Trim/Front, Trim/Front Door-Driver, Trim/Front Door-Passenger, Trim/Rear Door) | Power Transfer Unit (Power Transfer Unit, Power Transfer Unit Mounting, Power Transfer Unit Vent Tube) | Rear Glass, Seat Parts, Adjuster (Quarter Window, Rear Window) | Rear Seat Trim, Carpet (Cargo Net, Carpet/Floor, Compartment Trim/Rear, Seat Assembly/Rear And Mounting, Seat Assembly/Rear-Back Detail, Tray/Rear Compartment, Trim/Back Window Shelf) | Starter, Generator, Ignition, Electrical, Lamps (Battery Cables, Battery Mounting, Block/Rear B.E.C., Generator Assembly & Mounting, Headlamp Control, Horn, Lamps/Front, Lamps/Rear, Module/Body Control, Relays/Engine Compartment, Sensor System/Collision, Sensor System/Front & Rear Object, Sensor System/Rear Object, Starter Motor And Mounting, Wiring Harness Connectors, Wiring Harness/Engine, Wiring Harness/Front Lamps, Wiring Harness/Instrument Panel) | Transmission - Automatic (Automatic Transmission 4-5-6 Clutch, Automatic Transmission Assembly, Automatic Transmission Case & Related Parts, Automatic Transmission Case Cover, 2-6 Low Reverse Pistons, Automatic Transmission Control Valve Body, Automatic Transmission Differential Housing, Gear Support, And Fluid Pump, Automatic Transmission Front Differential Carrier, Automatic Transmission Front Differential Transfer Gear, Automatic Transmission Input, Output And Reaction Gearset, Automatic Transmission Low And Reverse And 1-2-3-4 Clutch Plate, Automatic Transmission Lower Valve Body, Automatic Transmission Oil Cooler Pipes, Automatic Transmission Park System, Automatic Transmission Reverse Clutch, Automatic Transmission Upper Valve Body, Shift Control) | Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors (Door Hardware/Front, Door Hardware/Rear, Entry System/Keyless Remote, Floor Console, Floor Console/Ashtray, Instrument Panel Cleaning Cloth, Instrument Panel Compartment Assembly, Instrument Panel Lower Trim, Instrument Panel Upper Trim, Instrument Panel/Electrical, Instrument Panel/Structure, Mirror/Outside Rear View, Roof Console, Windshield Trim & Hardware, Wiper System/Windshield)