OEM parts categories for 1993 Audi 90 Quattro: A/C & Heating (A/C & Heater Control Units, A/C Compressor, A/C Condenser, A/C Evaporator Components, Air Conditioner, Automatic Temperature Controls, Blower Motor & Fan, Heater Core & Control Valve, Hoses) | Air & Fuel Delivery (Air Inlet, Cruise Control System, Fuel Injection, Fuel Supply, Fuel System Components, Intake Manifold, Throttle Body) | Belts & Cooling (Belts, Cooling System, Radiator, Water Pump, Cooling Fan, Hoses, Lines & Pipes, Radiator & Components, Radiator Support) | Body & Hardware (Center Console, Center Pillar, Dash Shelf, Door & Components, Fender & Components, Floor & Rocker, Front Bumper, Front Door, Front Door - Door Hardware, Front Door - Glass & Hardware, Front Door - Weatherstrip & Hinge, Glove Box, Grille & Components, Heat & Sound Insulators, Hood & Components, Information Labels, Instrument Panel, Knee Bar & Pads, Quarter Panel & Components, Quarter Panel Glass, Inner Components, Rear Body, Rear Bumper, Rear Door, Rear Door - Door Hardware, Rear Door - Glass & Hardware, Rear Door - Weatherstrip & Hinge, Rear Floor, Roof, Back Glass, Seat Components, Side Rails, Structural Components & Rails, Sunroof, Trunk, Trunk Lid, Windshield Glass, Cowl, Wiper & Washer Components) | Brakes (Anti-Lock Brakes, Brake Components, Front Brakes, Hydraulic System, Parking Brake, Rear Brakes, Traction Control Components) | Charging & Starting (Alternator, Battery, Headlamps, Headlamp Washers/Wipers, Fog Lamps, Bulbs, Flashers, Ignition System, Ignition Lock, Antenna & Radio, Anti-Theft Components, Battery, Door, Gauges, Heated Seats, Horn, Instruments & Gauges, Mirrors, Powertrain Control, Senders, Sunroof, Supplemental Restraint System, Switches, Wipers, Starter) | Driveline & Axles (Front Axle Shafts & Joints, Drive Axles, Rear Axle, Axle Shafts & Joints, Differential) | Electrical (Air Bag Components, Apron Components, Front Seat Belts, Rear Seat Belts, Fuse & Relay, Headlamps, Headlamp Washers/Wipers, Fog Lamps, Bulbs, Flashers, Ignition System, Ignition Lock, Antenna & Radio, Anti-Theft Components, Battery, Door, Gauges, Heated Seats, Horn, Instruments & Gauges, Mirrors, Powertrain Control, Senders, Sunroof, Supplemental Restraint System, Switches, Wipers, Washer Components) | Emission Control & Exhaust (EGR System, Emission Components, Exhaust Components, Exhaust Manifold) | Engine (Engine Mounting, Engine Parts, Mounts, Cylinder Head & Valves, Camshaft & Timing, Oil Pan, Oil Pump, Crankshaft & Bearings, Pistons, Rings & Bearings) | Headlights & Lighting (Backup & Tail Lamps, Front Lamps - Fog Lamps, Headlamps, Headlamps, Headlamp Washers/Wipers, Fog Lamps, Bulbs, Flashers, Ignition System, Ignition Lock, Antenna & Radio, Anti-Theft Components, Battery, Door, Gauges, Heated Seats, Horn, Instruments & Gauges, Mirrors, Powertrain Control, Senders, Sunroof, Supplemental Restraint System, Switches, Wipers, High Mount Lamps, License Lamps, Side Marker Lamps, Tail Lamps) | Interior & Exterior Trim (Exterior Trim - Fender, Interior Trim - Front Door, Interior Trim - Pillars, Rocker & Floor, Interior Trim - Rear Body, Interior Trim - Rear Door, Interior Trim - Roof) | Maintenance & Lubrication (Automatic Transmission, Filters) | Steering (P/S Pump & Hoses, Steering Gear & Linkage, Power Steering Pump & Cooler Lines, Steering Column & Wheel, Steering Gear & Linkage) | Suspension (Axle Shaft & Joints - Rear, Crossmembers & Components - Rear, Drive Axles - Front, Front Suspension Components, Lower Control Arm, Stabilizer Bar, Rear Axle, Lower Control Arm, Upper Control Arm, Stabilizer Bar, Suspension Components, Shocks & Suspension Components - Front, Wheels) | Transmission (Automatic Transmission, Clutch & Flywheel, Hydraulic System, Manual Transmission)