OEM parts categories for 2018 Ram 2500: Air Conditioners & Heater (A/C & Heater Controls, A/C & Heater Unit, A/C & Heater Unit Zone, A/C Compressor & Related Parts, A/C Compressor Mounting, A/C Plumbing, Air Duct Exhauster, Ducts Front, Ducts Rear, Heater Plumbing) | Automatic Transmission (2 & 4 Clutch, Case, Case Adapter, Extension, Gearshift Lever , Cable And Bracket, Input / Reverse Planetary, Input 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, Reaction Planetary, Sensors , Vents And Quick Connectors, Structural Collar, Torque Converter, Transmission / Transaxle Assembly, Valve Body & Related Parts) | Body - Sheet Metal Except Doors (Aperture Panel, Aperture Panel And Pillar Supports - Cab Back, Body Weatherstrips & Seals, Cowl, Dash Panel & Related Parts, Floor Pan, Floor Pan Plugs, Mega & Crew Cabs, Floor Plan Plugs, Front Aperture Panel, Front Fender, Fuel Filler Housing & Door, Hood & Related Parts, Hood, Doors, And Tailgate Plugs, Pick Up Box Crossmember, Pick Up Box Plugs, Pick-Up Box, Pick-Up Box With Ram Box, Pick-Up Box, Rail Caps, Ram Box, Ram Box Extender, Rear Wheelhouse Shields, Roof Panel, Sunroof Glass & Component Parts, Tailgate, Tonneau Cover) | Brakes (Booster, Vacuum Power Brake, Brake Master Cylinder, Brake Pedals, Brake Tubes & Hoses, Rear And Chassis, Brakes, Rear, Disc, Front Brakes, Hydraulic Control Unit, Brake Tubes & Hoses, 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, Conversion Kit, Appearance, Crew Cab, Chrome Bodyside Moldings, Conversion Kit, Appearance, Drop-In Bedliner) | Cooling (Belts, Serpentine & V-Belts, Charge Air Cooler, Coolant Recovery Bottle, 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, Mirror, Exterior, Rear Door - Hardware Components, Rear Door - Shell & Hinges, Tailgate, Weatherstrips - Front Door, Weatherstrips - Rear Door) | Electrical (Alternator, Antenna, Auxiliary & Integral PDC, Battery Wiring, Battery, Tray, And Support, Cluster, Instrument Panel, Front Washer System, Front Wiper System, Ground Straps, Horns, Lamps - Rear, Lamps, Front, Lamps, Outside Mirror, Lamps, Rambo Storage, Lamps, Roof, Lamps, Truck Bed, Lighting, Interior, Module, Body Controller, Module, Brakes And Suspension, Module, Compass And Garage Door Opener, Module, Door, Module, Gateway, Module, Memory Control And Heated Seat, Module, Power Inverter, Module, Powertrain Control, Module, Receiver Hub, Transmitters, And Keys, Module, Trailer Brake Control, Module, Transfer Case Control, Module, Vehicle Systems Interface, Navigation System, Oxygen Sensors, Park Assist, Front, Park Assist, Rear, Power Distribution Center, Power Outlet, Power Outlet, Dash & Console, Radios & Center Stack, Rear Cargo View Camera System, Rear View Camera, Relay, Fuel Heater, Relays - Air Intake Heater & CNG, Remote Start, Satellite Radio System, Sensor, Suspension And Steering, Sensor, Transmission, Sensors - Body, Sensors - Brake, Sensors - Exhaust & Pressure, Sensors, Engine, Spark Plugs, Coils, And Capacitors, Speakers, Amplifiers, And Microphones, Starter, Switch, Bed Lamp, Switches - Body, Switches - Doors, Switches - Heater & A/C, Switches - Instrument Panel, Switches - Powertrain, Switches - Seats, Switches - Steering Wheel & Column, U Connect Media & Charging Center, Wiring - A/C & Heater, Wiring - Body, Wiring - Chassis & Underbody, Wiring - Console, Wiring - Dash & Front End, Wiring - Doors, Wiring - Engine, Wiring - Front Seats, Wiring - Instrument Panel, Wiring - Overhead, Wiring - Rear Seats, Wiring - Repairs, Wiring - Transmission) | 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 , Engine Oil Filter And Adapter And Cooler, Engine Oil Cooler & Oil Filter , Adapter, Engine Oil Pan , Engine Oil Level Indicator And Related Parts, Engine Oil Pump, 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 Heat Shield, Exhaust System) | Exterior Ornamentation (Decals, Fender Guards, Grille, Molding Body, Molding Wheel Opening, Nameplates - Emblem & Medallions, Spoilers, Step, Body Side) | Frame, Bumper And Fascia (Body Hold Down, Bumper Front, Frame, Complete, Rear Bumper, Tow Hooks & Hitches, Rear, Tow Hooks, Front, Under Body Plates & Shields, Winch - Front) | Front Axle; Differential And Drive Line (Axle Shafts, Differential Assembly, Front Axle Assembly, Front Axle Disconnect, Housing , Axle, Housing And Vent, Shaft - Drive) | Front Suspension (Front Stabilizer Bar, Front Stabilizer Bar, Track, Suspension, Suspension - Front) | Fuel (Accelerator Pedal, Air Cleaner, Fuel Cylinder, Fuel Filter, Fuel Injection Plumbing, Fuel Injection Pump, Fuel Lines, Fuel Lines, Front, Fuel Lines, Rear, Fuel Pump Module, Fuel Rail, Fuel Tank, Fuel Tank Filler, 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 Cab, Interior Moldings And Pillars - 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 Trim Panel, Rear Door Trim Panel, Rear Storage Compartment, Silencers) | Labels (Decals Fuel Door, Engine Compartment, Label - 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, Camera, Back Up, Electronic Trailer Brake Kit, Emergency Kit, Tire Repair, Exhaust Tip Kit, Extender Kit, Pick Up Bed, Hook Kit - Tow, Light Kit, Cargo, Mirror Kit, Trailer Tow, Molding Kit, Body Side, Receiver Kit - Trailer Tow, 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 - Drive, Shaft, Axle) | Rear Suspension (Air Suspension Module & Sensors, Compressor Assembly - Air Suspension, Power Hop Damper, Reservoir & Air Supply Lines, Stabilizer Bar - Rear, Suspension - Rear, Track Bar, Rear) | 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 Pump, 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 Assembly & Tools, Spare Tire Stowage, Tire Monitoring System, Wheel Covers & Center Caps, Wheels & Hardware)