OEM parts categories for 2005 Cadillac Sts: Body Moldings, Sheet Metal, Rear Compartment Hardware, Roof Hardware (Insulators/Body, Moldings/Body-Above Belt, Moldings/Body-Below Belt, Plugs/Body, Rear Compartment Hardware, Sheet Metal/Body Side Frame & Doors, Sheet Metal/Body-Engine Compartment & Dash, Sheet Metal/Body-Roof, Sheet Metal/Body-Side Frame, Sheet Metal/Body-Underbody & Rear End, Spoiler/Rear Compartment Lid, Sunroof, Sunroof Drainage) | 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, Air Inlet & Blower, Antenna/Audio, Antenna/Digital Audio, Audio System/Speakers & Amplifier, Cable Kit-Communication, Cable Kit-Digital Radio & Mobile Telephone & Vehicle Locator, Cable Kit-Digital Radio & Vehicle Locator, Communication System "Onstar", Radio Mounting, Television System) | Brakes (Brake Booster, Brake Booster & Master Cylinder Mounting, Brake Caliper/Front, Brake Caliper/Rear, Brake Electrical System/Antilock, Brake Hoses & Pipes, 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, Differential Carrier, Differential Carrier Mounting, Prop Shaft, Prop Shaft Mounting-Front, Prop Shaft Mounting/Rear, Tire, Tire Inflator, Tire Pressure Sensor, Tire Pressure Sensor System, Wheels) | Cooling System, Grille, Oil System (Engine Block Heater, Engine Coolant Fan, Engine Coolant Fan-Auxiliary Electric Pusher, Engine Coolant Fan-Engine Mounted, Grille/Radiator, Hoses & Pipes/Radiator, Pulleys & Belts/Accessory Drive, 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-Manifolds & Fuel Related Parts, Engine Assembly-Oil Pump, Oil Pan & Related Parts, Engine To Transmission Mounting) | Frames, Springs, Shocks, Bumpers, Fascias (Absorber/Front Shock & Spring, Bumper/Front, Bumper/Rear, Frame & Mounting, Level Control Compressor/Automatic, Suspension Controls/Electronic, Suspension Controls/Electronic & Level Control, Suspension/Rear) | Front End Sheet Metal, Heater (Fender & Wheelhouse/Front End, Hood, Hoses & Pipes/Heater, Insulators/Engine Compartment, Labels, Paint/Touch-Up, Sight Shield/Engine Compartment, Spare Wheel Stowage & Jack Parts) | Front Suspension, Steering (Differential Carrier/Front Axle, Drive Axle Mounting/Front, Drive Shaft/Front Wheel, Steering Column, Steering Gear Assembly, Steering Pump Assembly, Steering Pump Lines, Steering Pump Mounting, Steering System & Related Parts, Steering Wheel & Horn Parts, Suspension/Front) | Fuel System, Exhaust, Emission System (Accelerator Control, Air Intake System, Cruise Control, E.C.M. Module & Related Parts, Exhaust System, Fuel Injector Rail, Fuel Supply System, Fuel Tank And Mounting, Fuel Tank Sender, Vapor Canister & Related Parts) | Interior Trim, Front Seat Trim, Seat Belts (Front Seat Mounting, Inflatable Restraint System, Roof Headliner, Seat Assembly/Driver-Back, Seat Assembly/Driver-Cushion, Seat Assembly/Passenger-Back, Seat Assembly/Passenger-Cushion, Seat Belts-Rear, Seat Belts/Driver, Seat Belts/Passenger, Trim/Center Pillar & Quarter, Trim/Front, Trim/Front Door-Driver, Trim/Front Door-Passenger, Trim/Rear Door) | Maintenance Parts, Fluids, Capacities, Electrical Connectors (Normal Maintenance Replacement Parts) | Rear Glass, Seat Parts, Adjuster (Rear Window) | Rear Seat Trim, Carpet (Carpet/Floor, Compartment Trim/Rear, Seat Assembly/Rear, Trim/Back Window Shelf) | Starter, Generator, Ignition, Electrical, Lamps (Alarm System/Anti Theft, Battery Mounting & Cables, Coil & Module/Ignition, Generator Mounting, Headlamp Washer, Horn, Lamps/Front, Lamps/Rear, Relays/Body Compartment, Relays/Engine Compartment, Sensor System/Rear Object, Starter Motor And Mounting, Wiring Harness/Engine, Wiring Harness/Engine Assembly, Wiring Harness/Engine Compartment, Wiring Harness/Front Lamps, Wiring Harness/Instrument Panel) | Transfer Case (Transfer Case & Components, Transfer Case Mounting) | Transmission - Automatic (Automatic Transmission Case & Related Parts, Automatic Transmission Clutch Assemblies & Related Parts, Automatic Transmission Control Valve Assembly, Automatic Transmission Direct Clutch Drum And Shaft Assembly, Automatic Transmission Forward & Coast Clutch Assembly, Automatic Transmission Front Control Valve Assembly, Automatic Transmission Input Sun Gear Shaft And Forward Sprag Clutch Assembly, Automatic Transmission Intermediate Sprag Clutch Assembly, Automatic Transmission Oil Cooler Pipes, Automatic Transmission Overdrive & Intermediate Clutch Assembly, Automatic Transmission Parking Pawl Assembly, Automatic Transmission Planetary Carrier Assembly, Automatic Transmission Rear Control Valve Assembly, Automatic Transmission Rear Internal Gear Output Shaft Assembly, Automatic Transmission Torque Converter Housing & Fluid Pump, Shift Control, T.C.M. Module, Transmission To Engine Mounting, Transmission Vent Hose) | Transmission - Manual (T.C.M. Module, Transmission To Engine Mounting, Transmission Vent Hose) | Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors (Door Hardware/Front, Door Hardware/Rear, Entry System/Keyless Remote, Floor Console, Instrument Panel, Lock Cylinder Set-Instrument Panel Compartment, Lock Cylinder Set/Door, Mirror/Rear View-Exterior, Windshield Trim & Hardware, Wiper Motor/Windshield, Wiper System/Windshield)