OEM parts categories for 2018 Ram 3500 Pickup: Air Conditioners & Heater (A/C & Heater Controls, A/C & Heater Unit, A/C & Heater Unit Zone, A/C Compressor, A/C Compressor Mounting, A/C Plumbing, Air Duct Exhauster, Ducts Front, Ducts Rear, Heater Plumbing) | Automatic Transmission (2 & 4 Clutch, B1 Brake Clutch, B2 Brake Clutch, Case, Case Adapter, Extension, Gear Train - Hubs, Gearshift Lever , Cable And Bracket, Input / Reverse Planetary, Input Clutch Assembly, K1 Clutch Assembly, K2 Clutch Assembly, K3 Clutch Assembly, Low / Reverse Clutch, Mounting Bolts, Mounting Covers And Shields, Oil Filler, Oil Filler Tube & Related Parts, Oil Pan , Cover And Related Parts, Oil Pump & Related Parts, Parking Sprag & Related Parts, Planetary Gear Set, Plugs - Vents & Quick Connectors, Reaction Planetary, Sensors, Sensors , Vents And Quick Connectors, Structural Collar, Torque Converter, Transmission / Transaxle Assembly, Valve Body & Related Parts) | Body - Sheet Metal Except Doors (Aperture Panel And Pillar Supports - Cab Back, Cowl, Dash Panel & Related Parts, Floor Pan, Front Aperture Panel, Front Fender, Fuel Filler Housing & Door, Hood & Related Parts, Pick Up Box, Pick Up Box Crossmember, Pick Up Box Rail Caps, Pick-Up Box With Ram Box, Plugs, Ram Box, Ram Box Divider / Extender, Rear Wheelhouse Shields, Roof Panel, Sunroof Glass & Component Parts, Tailgate, Tonneau Cover, Weatherstrips) | Brakes (Brake Master Cylinder, Brake Pedals, Brake Tubes & Hoses, Rear And Chassis, Brakes, Rear Disc, Front Brakes, Hydraulic Control Unit, Brake Tubes And Hoses, Front, Hydro-Booster, Power Brake, Park Brake Assembly, Rear Disc, Park Brake Cables, Rear, Park Brake Lever & Cables, Front) | Clutch (Clutch Assembly, Clutch Pedal, Controls, Hydraulic Clutch) | Conversion And Upfit Packages (Conversion Kit, Appearance) | Cooling (Charge Air Cooler, Coolant Recovery Bottle, Drive Belts, EGR Cooling System, Pulley & Related Parts, Radiator & Related Parts, Radiator Seals, Shields, Baffles, And Shrouds, Radiator Support, Thermostat & Related Parts, Transmission Oil Cooler & Lines, Water Pump & Related Parts) | Doors, Door Mirrors And Related Parts (Front Door Lock Cylinders, Front Door, Hardware Components, Front Door, Shell & Hinges, Latch And Clips, Mirror, Exterior, Rear Door - Hardware Components, Rear Door - Shell & Hinges, Tailgate, Weatherstrips - Rear Door, Weatherstrips, Front Door) | Electrical (Antenna, Auxiliary & Integral PDC, Battery Wiring, Battery, Tray, And Support, Cluster, Instrument Panel, Front Washer System, Front Wiper System, Generator/Alternator, Ground Straps, Horns, Lamps - Rear, Lamps, Dual Fenders And Tailgate, Lamps, Front, Lamps, Outside Mirror, Lamps, Roof, Lamps, Truck Bed, Lighting Rambo Storage, Lighting, Interior, Module, Body Controller, Module, Compass And Garage Door Opener, Module, Door, Module, Gateway, Module, Memory Control And Heated Seat, Module, Power Inverter, Module, Powertrain Control, Module, Trailer Brake Control, Module, Transfer Case Control, Module, Transmission Control, Module, Vehicle Systems Interface Control, Modules, Brake, Suspension & Steering, Modules, Memory Seat, Mirror & Heated Seat, Modules, Receiver Hub, Keys, And Key Fobs, Navigation System, Oxygen Sensors, Park Assist, Front, Park Assist, Rear, Power Distribution Center, Power Outlet, Dash & Console, Radios & Center Stack, Rear Cargo View Camera System, Rear View Camera, Relay - Air Intake Heater, Remote Start, Satellite Radio System, Sensors - Body, Sensors - Brakes, Sensors - Exhaust & Pressure, Sensors - Suspension & Steering, Sensors - Transmission, Sensors, Engine, Spark Plugs, Coil, And Capacitor, Speakers, Amplifiers, And Microphones, Speed Control, Starter, Switch, Bed Lamp, Switches - Body, Switches - Door, Switches - Heater & A/C, Switches - Instrument Panel, Switches - Powertrain, Switches - Seats, Switches - Steering Column & Wheel, U Connect Media & Charging Center, Wiring - A/C & Heater, Wiring - Body, Wiring - Chassis & Underbody, Wiring - Console, Wiring - Dash & Front End, Wiring - Doors, Wiring - Front Seats, Wiring - Instrument Panel, Wiring - Overhead, Wiring - Rear Seats, Wiring - Repairs, Wiring - Transmission, Wiring, Engine) | Emission Controls (Diesel Exhaust Fluid System, EGR System, Emission Control Vacuum Harness, Vacuum Canister & Leak Detection, Vacuum Pump Plugs) | Engine (Camshaft And Valvetrain, Crankcase Ventilation, Crankshaft , Crankshaft Bearings , Damper And Flywheel, Cylinder Head & Cover & Rocker Housing, Engine Assembly And Service Long Block, Engine Cover & Related Parts, Engine Cylinder Block And Hardware, Engine Cylinder Block Heater, Engine Gasket / Install Kits, Engine Gasket Kit, Engine Intake Manifold, Engine Mounting Left Side, Engine Mounting Right Side, Engine Oil Pan , Engine Oil Level Indicator And Related Parts, Engine Oil Pump, Engine Oil, Engine Oil Filter, Adapter And Cooler, Exhaust Manifold And Heat Shields, Intake Manifold And Air Intake Starting Aid, Pistons , Piston Rings , Connecting Rods And Connecting Rod Bearings, Timing Case Cover, Timing System, Turbocharger And Oil Lines / Hoses) | Exhaust (Differential Pressure System, Exhaust System, Exhaust System Heat Shield) | Exterior Ornamentation (Fender Guards, Grille, Molding Wheel Opening, Moldings Body, Nameplates - Emblems, Medallions & Decals, Spoilers, Step, Body Side) | Frame, Bumper And Fascia (Body Hold Down, Bumper, Front, Bumper, Rear, Frame, Complete, Tow Hooks & Hitches, Rear, Tow Hooks, Front, Underbody Plates & Shields) | Front Axle; Differential And Drive Line (Differential Assembly, Front Axle Assembly, Front Axle Disconnect, Housing , Axle, Housing And Vent, Shaft - Drive, Shaft , Axle) | Front Suspension (Front Stabilizer Bar, Front Stabilizer Bar, Track, Suspension - Front) | Fuel (Accelerator Pedal, Air Cleaner, Fuel Filler Tube, Fuel Filter, Fuel Injection Plumbing, Fuel Injection Pump, Fuel Lines, Front, Fuel Lines, Rear, Fuel Pump Module, Fuel Rail, Fuel Tank, Fuel Tank Filler Tube, Throttle Body) | Glass (Glass, Front Door, Glass, Rear Door, Mirror - Inside Rearview, Windshield & Back Glass) | Interior Trim (Adjusters, Recliners & Shields - Driver Seat, Adjusters, Recliners & Shields - Passenger Seat, Carpet, Cowl Side Panel & Scuff Plates, Crew Cab - Rear Seat Hardware - Bench, Crew Cab - Rear Seat Hardware - Split Seat, Crew Cab Rear Seat - Bench, Crew Cab Rear Seat - Split Seat, Floor Cargo Storage, Floor Console, Front Door Trim Panel, Front Seat - Bucket, Front Seat - Center, Headliner & Visor, Instrument Panel & Structure, Instrument Panel Trim, Interior Moldings And Pillars Crew And Mega Cab, Interior Moldings And Pillars, Regular Cab, Load Floor, Cargo, Load Floor/Kneel & Table Position Cables, Mega Cab - Split Seat, Overhead Console, Rear Cab Panel, Rear Door Trim Panel, Rear Storage Compartment, Silencers) | Labels (Engine Compartment, Fuel Decal, Instrument Panel) | Manual Transmission (Counter Shaft Assembly, Front Case & Related Parts, Gear Shift Boot, Knob And Bezel, Gear Shift Lever, Input Shaft Assembly, Main Shaft Assembly, Mounting Bolts, Rear Case & Related Parts, Reverse Idler Shaft Assembly, Sensors, Switches And Vents, Shift Forks & Rails, Transmission / Transaxle Assembly, Transmission Support) | Mopar Accessories - Component Parts (Bedliner Kit, Under Rail, Board Kit, Running - Full, Camera, Back Up, Cover Kit, Electronic Trailer Brake Kit, Exhaust Tip, Extender Kit, Pick Up Bed, Hook Kit, Front Tow, Light Kit, Cargo, Mirror Kit, Trailer Tow, Molding Kit, Body Side, Molding Kit, Wheel Flares, Remote Start, Step Kit, Tubular Side, Tonneau Cover, Folding, Tonneau Cover, Soft, Tool Box, Touch Up Paint) | Rear Axle; Differential And Drive Line (Differential Assembly, Housing And Vent, Rear Axle Assembly, Shaft, Shaft - Drive, Shaft , Axle) | Rear Suspension (Air Suspension Module & Sensors, Compressor Assembly - Air Suspension, Reservoir & Air Supply Lines, Suspension - Rear, Suspension - Rear (Leaf Spring)) | Restraints (Air Bag Modules Impact Sensor & Clock Springs, Air Bags - Front, Air Bags - Side, Seat Belts - Front, Crew Cab, Seat Belts - Front, Mega Cab, Seat Belts - Front, Regular Cab, Seat Belts - Rear, Crew Cab And Mega Cab) | Steering (Power Steering Hose, Power Steering Hoses, Power Steering Pump & Reservoir, Steering Column, Steering Gear Box, Steering Linkage, Steering Wheel Assembly) | Transfer Case (Front Case & Related Parts, Gear Train, Oil Pump, Rear Case & Related Parts, Shift Forks & Rails, Transfer Case Assembly & Identification, Transfer Case Mounting, Transfer Case Shifting) | Wheels (Emergency Kit, Jack Stowage, Spare Tire Stowage, Tire Monitoring System, Wheel Covers & Center Caps, Wheels & Hardware)