OEM parts categories for 1993 Gmc C2500: Body Mounting, Air Conditioning, Audio/Entertainment (A/C & Heater Control Assembly, A/C & Heater Module Assembly, A/C Compressor Assembly, A/C Compressor Mounting, A/C Control System Electrical, A/C Refrigeration System, Air Distribution System/Instrument Panel, Antenna/Fixed, Audio System/Front, Audio System/Rear, Body Mounting, Cluster Assembly/Instrument Panel Electromechanical) | Brakes (Brake & Steering System-Hydraulic Lines, Brake Booster/Vacuum, Brake Caliper/Front, Brake Lines/Front, Brake Lines/Rear, Brake Master Cylinder, Brake Pedal & Master Cylinder Mounting, Parking Brake System, Wheel Cylinder/Drum Brake) | Brakes, Rear Axle, Propeller Shaft, Wheels, Tires (Axle Assembly/Rear, Axle Assembly/Rear Locking Differential, Brake Assembly/Rear Drum, Prop Shaft, Prop Shaft And Mounting, Prop Shaft/Front & Rear, Rear Axle Vent Hose, Wheels & Wheel Covers) | Cab And Body Structure, Mirrors, Doors, Trim, Seat Belts, Wipers (Console/Floor, Console/Roof, Door Hardware/Side Front, Door Trim/Side Front, Floor Covering & Sill Plates, Front Seat/Bench Hardware, Front Seat/Hi-Back Bucket, Front Seat/Low-Back Bucket, Instrument Panel & Related Parts, Lamp/Dome, Lamps/Cargo & Harness, Mirror/Outside Rear View, Rear Seat/Folding, Seat Belts-Rear, Seat Belts/Front, Seat/Split, Sheet Metal/Body, Trim/Interior-Body Side, Trim/Interior-Roof, Windshield & Windows, Wiper System/Windshield) | Cooling System, Grille, Oil System (Engine Block Heater & Related Parts, Engine Coolant Fan & Clutch, Engine Coolant Fan-Auxiliary, Engine Oil Cooler And Lines, Engine Oil Filter Adapter, Engine Oil Pressure & Temperature Switches, Grille/Radiator, Pulleys & Belts/Accessory Drive, Radiator Assembly, Radiator Hoses, Radiator Mounting & Related Parts) | Engine (Clutch, Clutch Linkage & Pedal, Engine & Transmission Mounting, Engine Assembly-Block & Related Parts, Engine Assembly-Cylinder Head & Related Parts, Engine Assembly-Front Cover & Cooling & Related Parts, Engine Assembly-Fuel Related Parts, Engine Assembly-Manifold, Turbo & Related Parts, Engine Assembly-Oil Pump, Pan & Related Parts, Engine To Transmission Mounting) | Frames, Springs, Shocks, Bumpers, Fascias (Bumper/Front, Bumper/Rear, Frame, Spare Wheel Carrier, Springs/Rear, Suspension/Rear, Trailer Hitch Platform) | Front Axle, Front Suspension, Steering (Steering Column-Standard, Steering Column/Tilt, Steering Gear Assembly, Steering Linkage, Steering Pump Assembly, Steering Pump Lines, Steering Pump Mounting, Steering System & Related Parts, Steering Wheel & Horn Parts, Suspension/Front) | Front End Sheet Metal, Heater (Heater & Blower Assembly, Heater & Vent Control Cables & Harness, Heater Control Assembly, Hoses & Pipes/Heater, Insulators/Engine Compartment, Jack & Tool Stowage, Labels, Lamps/Under Hood, Paint/Touch-Up, Sheet Metal/Front End) | Fuel System, Exhaust, Emission System (A.I.R. Pump & Related Parts, Accelerator Control Engine Compartment, Accelerator Control Pedal & Lever, Air Intake System, Control Module & Related Parts, Cruise Control, E.G.R. & Exhaust Pressure Regulator Valves, E.G.R. Valve & Vent Tubes, Exhaust System, Fuel Filter, Fuel Supply System-Front, Fuel Supply System-Rear, Fuel Tank And Mounting, Fuel Tank Filler Pipes & Hoses, Fuel Tank Sender, Hand Throttle Control, Injection Pump/Fuel, M.A.P. & Oxygen Sensors & E.S.C. Module, Throttle Body, Vacuum Pump Mounting, Vapor Canister & Related Parts) | Maintenance Parts, Fluids, Capacities, Electrical Connectors (Normal Maintenance Replacement Parts) | Rear Body Structure, Moldings & Trim, Cargo Stowage (Bedliner/Pickup Box, Decals & Stripes, Moldings/Cab & Body Side, Pickup Box/Fleetside, Pickup Box/Stepside, Stripes) | Starter, Generator, Ignition, Electrical, Lamps (Auxiliary Battery & Wiring, Battery Cables, Battery Mounting, Distributor/Ignition, Generator Assembly, Generator Mounting, Lamps/Fog, Lamps/Front, Lamps/Front - Single Headlamp, Lamps/Rear, Lamps/Roof, Relays, Spark Plug Wiring, Starter Motor, Starter Motor And Mounting, Wiring Harness/A.C. & Heater, Wiring Harness/Chassis, Wiring Harness/Door & Window, Wiring Harness/Engine, Wiring Harness/Instrument Panel, Wiring Harness/Lamps, Wiring Harness/Rear Lamps, Wiring Harness/Seat & Seat Belt, Wiring Harness/Trailer & Camper) | Transmission - Automatic (Automatic Transmission Assembly, Automatic Transmission Auxiliary Accumulator Valve, Automatic Transmission Case & Related Parts & Park Lock Linkage, Automatic Transmission Clutch Gears, Automatic Transmission Control Valve, Automatic Transmission Oil Cooler Pipes, Automatic Transmission Oil Pump, Automatic Transmission Overrun Clutch, Automatic Transmission Valve Body, Frame/Transmission Supports, Shift Control, T.C.M. Module & Wiring Harness, Transmission Auxiliary Oil Cooler, Transmission Filler Tube) | Transmission - Manual (Frame/Transmission Supports, Manual Transmission, Manual Transmission Case & Related Parts, Manual Transmission Main Gears, Shift Control)