OEM parts categories for 1998 Dodge Ram 1500 Regular Cab: Air Conditioning & Heater (Air Conditioner & Heater Unit, Control, Heater, Control, Heater And Air Conditioner, Mounting - A/C Compressor, Mounting - Compressor, Plumbing - A/C, Plumbing - Heater) | Automatic Transmission (Bands, Reverse & Kickdown With Linkage, Case & Related Parts, Clutch, Front & Rear With Gear Train, Clutch, Overdrive With Gear Train, Controls, Gearshift, Lower, Extension, Gear Train & Intermediate Shaft, Oil Pump, Oil Pump With Reaction Shaft, Output Shaft, Parking Sprag, Servos - Accumulator Piston & Spring, Transmission Assembly, Valve Body) | Body - Sheet Metal Except Doors (Aperture Panel Bodyside, Cowl & Dash Panel, Fender Front, Floor Box & Panel, Glass, Windshield, Backlite, Mirror, Hood & Hood Release, Plugs, Quarter Panel, Roof Panel, Tailgate) | Clutch (Clutch Assembly, Clutch Pedal, Controls, Hydraulic Clutch, Housing & Pan, Clutch) | Cooling (Coolant Tank, Drive Belts, Drive Pulleys, Grille & Related Parts, Radiator & Related Parts, Transmission Auxiliary Oil Cooler, Transmission Oil Cooler & Lines, Water Pump) | Doors & Related Parts (Door, Front Glass & Regulators, Door, Front Lock & Controls, Door, Front Shell & Hinges, Door, Front Weatherstrips & Seal, Mirrors, Exterior) | Electrical (Alternator & Mounting, Battery Tray & Cables, Bulbs & Sockets, Distributor, Horn & Mounting, Junction Block Relays & Fuses, Lamps - Dome-Courtesy-Reading, Lamps - Front End, Lamps - Rear End, Sensors, Spark Plugs, Ignition Cables And Coils, Starter & Mounting, Switches, Wiring - Body & Accessories, Wiring - Headlamp & Dash, Wiring - Instrument Panel) | Emission Systems (Air Injection Plumbing, EGR Valve, Emission Control Vacuum Harness, Leak Detection Pump, Vacuum Pump) | Engine (Camshaft & Valves, Crankcase Ventilation, Crankshaft , Piston & Torque Converter, Cylinder Block, Cylinder Head, Engine Oil Cooler, Engine Oiling, Flywheel And Torque Converter, Manifolds - Intake & Exhaust, Oil Lines, Timing Gear & Cover, Torque Converter Cooler) | Engine Mounting (Engine Mounting, Front, Engine Mounting, Rear) | Exhaust (Exhaust System, Heat Shields) | Exterior Ornamentation (Mouldings - Lower, Nameplates, Tape Strips & Decals) | Frames And Bumpers (Body Hold Down & Front End Mounting, Bumper, Front, Bumper, Rear, Frame) | Front Suspension & Drive (Differential - Front Axle, Front Axle Assembly, Front Axle Housing, Front Axle Shafts, Front Stabilizer Bar, Front Stabilizer Bar & Track Bar, Upper And Lower Control Arms, Springs And Shocks - Front) | Fuel (Air Cleaner, Air Fuel Control & Fuel Filter, Air Intake System, Charge Air Cooler System, Fuel Accessories, Fuel Filler Tube, Fuel Injection Pump, Fuel Injector, Fuel Line, Fuel Module, Fuel Pump Transfer Conversion, Fuel Rail, Fuel Tank, Lines - Fuel Injector, Speed Control, Throttle Body, Throttle Control, Turbocharger) | Instrument Panel And Radios And Consoles (Antenna, Instrument Cluster, Instrument Panel, Overhead Console, Radio, Speakers) | Interior Trim (A-Pillar, B-Pillar, Cowl & Sill, Front Door Trim Panel, Front Seat, Rear Storage, Seat - Floor Attaching) | Manual Transmission (Case And Extension, Gear Shift Controls, Gear Train, Shift Fork & Rails) | Parking Brake (Parking Brake Cable, Parking Brake Lever) | Propeller Shaft And Universal Joint (Propeller Shaft - Front, Propeller Shaft - Rear) | Rear Axle (Axle, Rear, With Differential Parts, Vent, Axle) | Rear Suspension (Suspension - Rear, Leaf With Shock Absorber) | Service Brakes (Booster - Power Brake & Hydro, Brake Master Cylinder, Brake Pedals, Brakes, Rear, Front Brakes, Hydraulic Control Unit, Brake, Lines & Hoses, Brake, Front And Chassis, Lines & Hoses, Brake, Rear) | Steering (Column, Steering, Upper And Lower, Linkage, Steering, Power Steering Gear, Power Steering Hoses, Power Steering Pump & Mounting, Steering Wheel) | Transfer Case Model (Case , Transfer & Related Parts, Case And Related Parts, Forks , Rails , Miscellaneous Parts, Gear Shift Controls, Gear Train) | Wheels, Covers & Jacks (Caps & Covers, Wheel, Jack & Storage, Spare Wheel, Underbody Mounting, Wheels & Hardware) | Wiper & Lock Cylinder And Keys (Lock Cylinders & Components, Windshield Wiper & Washer)