OEM parts categories for 2022 Cadillac Ct4: Body Moldings, Sheet Metal, Rear Compartment Hardware, Roof Hardware (Decals/Body, Insulators/Body, Moldings/Body, Nameplates, Ornamentation/Body, Plugs/Body, Rear Compartment Hardware, Sheet Metal/Body-Side Frame, Sheet Metal/Front Compartment, Sheet Metal/Roof, Sheet Metal/Side Door-Front & Rear, Sheet Metal/Underbody & Rear End, Spoiler/Rear Compartment Lid, Sunroof, Sunroof Drainage, Valve/Body Pressure Relief, Wheelhouse Liner/Rear) | Body Mounting, Air Conditioning, Audio/Entertainment (A/C & Heater Module Assembly, A/C & Heater Module Assembly Mounting, A/C Compressor Assembly, A/C Compressor Mounting, A/C Refrigeration System, Air Distribution System, Antenna/Audio, Antenna/Digital Audio, Audio System, Audio System/Noise Cancellation, Camera System, Camera System/Vehicle Performance, Communication System "Onstar", Navigation System/Data Card, Radio Mounting) | Body Wiring, Roof Trim (Wiring Harness/Body) | Brakes (Brake Booster & Master Cylinder Mounting, Brake Caliper/Front, Brake Caliper/Rear, Brake Electrical System, Brake Lines/Front, Brake Lines/Rear, Brake Pedal, Parking Brake Caliper, Parking Brake System) | Brakes, Rear Axle, Propeller Shaft, Wheels, Tires (Axle Shaft/Rear, Axle Shaft/Rear-LH Side, Axle Shaft/Rear-RH Side, Differential Cooler/Pipes & Hoses, Front Axle Propeller Shaft Mounting, Propeller Shaft Mounting-Rear, Propeller Shaft/Rear, Rear Differential Carrier, Rear Differential Carrier Mounting, Tire, Tire Inflator, Tire Pressure Sensor, Wheel Caps, Wheel Locks, Wheel Nuts, Wheels) | Cooling System, Grille, Oil System (Air Deflector/Underbody, Engine Block Heater, Engine Coolant Fan, Engine Oil Cooler And Lines, Grille/Radiator, Grille/Radiator-Emblem, Hoses & Pipes/Radiator, Pulleys & Belts/Accessory Drive, Radiator & Related Parts-Left Hand Auxiliary Radiator Detail, Radiator & Related Parts-Right Hand Auxiliary Radiator Detail, Radiator Assembly, Radiator Mounting & Related Parts) | Engine (Clutch, Clutch Pedal & Cylinders, Engine & Transmission Mounting, Engine Assembly & Partial Engine, Engine Assembly-Camshaft Cover & Coil, Engine Assembly-Cooling & Related Parts, Engine Assembly-Cylinder Block & Internal Parts, Engine Assembly-Cylinder Head & Related Parts, Engine Assembly-Front Cover & Cooling, Engine Assembly-Front Cover, Timing Chain & Tensioner, Engine Assembly-Intake Manifold & Fuel Related Parts, Engine Assembly-Intercooler, Engine Assembly-Oil Pump, Pan & Related Parts, Engine Assembly-PCV Valve & Emission System Related Parts, Engine Assembly-Rear Crank Oil Seal Housing & Related Parts, Engine Assembly-Timing Chain & Tensioner, Engine Assembly-Turbo Charger & Converter, Engine To Transmission Mounting, Intake Manifold Shield/Covers) | Frames, Springs, Shocks, Bumpers, Fascias (Absorber/Rear Shock, Bumper/Front Fascia, Bumper/Front Structure, Bumper/Rear, Frame & Mounting, License Plate Mounting/Front, License Plate Mounting/Rear, Suspension Controls/Electronic, Suspension/Rear-Control Arms, Spring & Stabilizer Bar, Suspension/Rear-Knuckle Details, Suspension/Rear-Support And Mounting) | Front End Sheet Metal, Heater (Accessory Kit, Accessory Kit/Safety, Fender & Wheelhouse/Front End, Fluid And Lubricant Recommendations, Hood, Hoses & Pipes/Heater, Labels, Paint/Touch-Up, Sight Shield/Engine Compartment, Tool Stowage Compartment, Vehicle Maintenance) | Front Suspension, Steering (Drive Shaft/Front Wheel LH Side, Drive Shaft/Front Wheel RH Side, Front Differential Carrier, Front Differential Carrier Mounting, Front Suspension Brace, Steering Column/Switches & Covers, Steering Gear Assembly, Steering System & Related Parts, Steering Wheel, Strut Assembly/Front, Suspension/Front, Vent Hose/Front Axle) | 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, Turbocharger Cooling System-Left Hand Unit, Turbocharger Cooling System-Right Hand Unit, Turbocharger Intercooler System, Turbocharger Intercooler System-Center Cooler Detail, Turbocharger Intercooler System-Left Cooler Detail, Turbocharger Intercooler System-Right Cooler Detail, Turbocharger Lubrication System, Turbocharger Lubrication System-Left Hand Unit, Turbocharger Lubrication System-Right Hand Unit, Turbocharger Mounting-Left Hand Unit, Turbocharger Mounting-Right Hand Unit, Turbocharger Wastegate System) | Interior Trim, Front Seat Trim, Seat Belts (Inflatable Restraint System/Driver & Passenger, Inflatable Restraint System/Roof Side, Roof Headliner, Seat Assembly/Left Hand Front-Back, Seat Assembly/Left Hand Front-Cushion, Seat Assembly/Right Hand Front-Back, Seat Assembly/Right Hand Front-Cushion, Seat Belts-Rear, Seat Belts/Front, Trim/Center Pillar & Quarter, Trim/Front, Trim/Front Door-Driver, Trim/Front Door-Passenger, Trim/Rear Door) | Rear Glass, Seat Parts, Adjuster (Rear Window) | Rear Seat Trim, Carpet (Cargo Net, Carpet/Floor, Compartment Trim/Rear, Seat Assembly/Rear And Mounting, Seat Assembly/Rear-Back Detail, Trim/Back Window Shelf) | Starter, Generator, Ignition, Electrical, Lamps (Battery Cables/Front, Battery Cables/Rear, Battery Charger, Battery Mounting, Block/Instrument Panel Junction, Generator Mounting, Horn, Lamps/Front, Lamps/Rear, Module/Body Control, Module/Exterior Lamp Control, Module/Multifunction Power Converter, Module/Serial Data Gateway, Reflector/Disabled Vehicle, Relays/Body, Relays/Engine Compartment, Sensor System/Collision, Sensor System/Forward Collision, Sensor System/Forward Collision-Camera, Sensor System/Forward Collision-Control Module, Sensor System/Forward Collision-Forward Range Radar, Sensor System/Front & Rear Object, Sensor System/Rear Object, Starter Motor And Mounting, Vehicle Direction System/Digital Map Module, Vehicle Direction System/Driver Monitoring System, Vehicle Direction System/Radars & Sensors, Vehicle Direction System/Vehicle Dynamic Sensors, Wiring Harness Connectors, Wiring Harness Terminated Leads, Wiring Harness/Chassis, Wiring Harness/Engine, Wiring Harness/Front Lamps, Wiring Harness/Instrument Panel) | Transfer Case (Transfer Case & Components, Transfer Case Controls Module, Transfer Case Mounting) | Transmission - Automatic (Automatic Transmission 1-2-3-4-5 & 1-2-7-8 Reverse Clutch Assembly, Automatic Transmission 1-2-3-4-6-7-8-10 Reverse & 4-5-6-7-8-9-10 Reverse Clutch, Automatic Transmission 1-3-5-6-7 Clutch Housing Assembly, Automatic Transmission 1-3-5-6-7-8-9 Clutch Assembly, Automatic Transmission 2-3-4-5-7-9-10 Clutch Assembly, Automatic Transmission 2-3-4-6-8 & 4-5-6-7-8 Reverse Clutch Assembly, Automatic Transmission Assembly, Automatic Transmission Case & Related Parts, Automatic Transmission Case Extension Assembly, Automatic Transmission Clutch Assemblies And Related Parts, Automatic Transmission Control Solenoid Valve Body Assembly, Automatic Transmission Control Valve Assembly, Automatic Transmission Control Valve Upper Body Assembly, Automatic Transmission Direct/Overdrive Internal Gear Assembly, Automatic Transmission Input Carrier Assembly, Automatic Transmission Input Internal Gear Assembly, Automatic Transmission Input Sun Gear Assembly, Automatic Transmission Internal Gear & Carrier Assembly, Automatic Transmission Oil Cooler Pipes, Automatic Transmission Park System Components, Automatic Transmission Reaction Carrier Assembly, Automatic Transmission Stator Shaft Support Assembly, Shift Control, T.C.M. Module, Transmission Vent Hose) | Transmission - Manual (Manual Transmission Assembly, Manual Transmission Clutch Housing & Input Shaft, Manual Transmission Countershaft & Reverse Idler, Manual Transmission Extension Case, Manual Transmission Main Case & Related Parts, Manual Transmission Mainshaft, Manual Transmission Oil Cooler Pipes & Hoses, Manual Transmission Shift Rails & Forks, Shift Control) | Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors (Door Hardware/Front, Door Hardware/Front-Driver Side Handle, Door Hardware/Front-Passenger Side Handle, Door Hardware/Rear, Door Hardware/Rear-Handle, Entry System/Keyless Remote, Floor Console Mounting, Floor Console Rear, Floor Console Upper, Floor Console-Lower, Instrument Panel Lower LH, Instrument Panel Lower RH, Instrument Panel-Upper, Instrument Panel/Center Stack, Instrument Panel/Structure, Mirror/Inside Rear View, Mirror/Outside Rear View, Roof Console, Windshield Trim & Hardware, Wiper System/Windshield)