OEM parts categories for 2018 Ram 3500 Cab Chassis: 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, 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, 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, Body Weatherstrips & Seals, Cowl, Dash Panel & Related Parts, Floor Pan, Floor Pan Plugs, Front Aperture, Front Aperture Panel, Front Fender, Hood & Related Parts, Hood, Doors, And Tailgate Plugs, Roof Panel) | Brakes (Brake Master Cylinder, Brake Pedals, Brake Tubes & Hoses, Rear, Brake Tubes 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) | Cooling (Belts, Serpentine & V-Belts, Charge Air Cooler, Coolant Recovery Bottle, Coolant Vent Tube, 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 Latch & Clips, Front Door Lock Cylinders, Front Door, Hardware Components, Front Door, Shell & Hinges, Mirror, Exterior, Rear Door - Hardware Components, Rear Door - Shell & Hinges, Weatherstrips - Rear Door, Weatherstrips, Front Door) | Electrical (Alternator, Antenna, Auxiliary & Integral PDC, Battery Tray & Support, Battery Wiring, CD/DVD Players, Front Washer System, Front Wiper System, Ground Straps, Horns, Ignition, Spark Plugs, Coils, And Capacitors, Instrument Cluster, Lamps - Rear, Lamps, Front, Lamps, Outside Mirror, Lamps, Roof, Lighting, Interior, Module, Body Controller, Module, Brakes, Suspension, And Steering, 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, Navigation System, Oxygen Sensors, Park Assist, Front, Park Assist, Rear, Power Distribution Center, Intelligent, Power Outlet, Power Outlet, Dash & Console, Radios, Rear Camera, Receiver Modules, Keys & Key Fob, Relay - Air Intake Heater, Remote Start, Satellite Radio System, Sensors - Body, Sensors - Brake, Sensors - Exhaust & Pressure, Sensors - Transmission, Sensors, Engine, Speakers, Amplifiers, And Microphones, Starter & Related Parts, Switches - Doors, Switches - Instrument Panel, Switches - Powertrain, Switches - Seats, Switches - Steering Wheel & Column, Switches, A/C & Heater, 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 Cover Heat / Noise Shields, Engine Cylinder Block And Hardware, Engine Cylinder Block Heater, Engine Gasket Kit, Engine Gasket Kits, Engine Intake Manifold, Engine Mounting Left Side, Engine Mounting Right Side, Engine Oil , Engine Oil Filter Adapter And Cooler, Engine Oil , Engine Oil Filter And Adapter, Engine Oil Cooler, 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 System, Exhaust System Heat Shield) | Exterior Ornamentation (Fender Guards, Grille, Molding Wheel Opening, Moldings Body, Nameplates - Emblem & Medallions, Step, Body Side) | Frame, Bumper And Fascia (Body Hold Down, Bumper, Front, Frame, Complete, Tow Hooks, Front, Under Body Plates & Shields) | 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 - Front) | Fuel (Accelerator Pedal, Air Cleaner, Fuel Filter, Fuel Injection Plumbing, Fuel Injection Pump, Fuel Line, Transfer Line, Fuel Lines Rear, Dual Tanks, Fuel Lines Rear, Mid Mounted Tank, Fuel Lines Rear, Rear Mounted Tank, Fuel Lines, Front, Fuel Pump Module, Fuel Rail, Fuel Tank, Fuel Tank Filler Tube, Lines On Rear Tank, Throttle Body) | Glass (Glass, Front Door, Glass, Rear Door, Mirror - Inside Rearview, Windshield & Back Glass) | Interior Trim (Adjuster, Recliners And Shields - Driver Seat, Adjusters, Recliners And Shield - Passenger Seat, Carpet, Cowl Side Panel & Scuff Plates, Crew Cab - Bench Seat, Crew Cab - Rear Seat Hardware, Crew Cab - Rear Seat Hardware - Split Seat, Crew Cab Rear Seat - Split Seat, Door Trim Panels Front, Door Trim Panels Rear, Floor Cargo Storage, Floor Console, Front Seat - Bucket, Front Seat - Center, Headliner & Visor, Instrument Panel, Instrument Panel Trim, Interior Moldings And Pillars - Crew Cab, Interior Moldings And Pillars, Regular Cab, Load Floor, Cargo, Overhead Console, Rear Cab Trim Panel, Rear Storage Compartment, Silencers) | Labels (Engine Compartment, Fuel Decal, Label - Instrument Panel, Visor - Interior) | 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 (Board Kit, Running, Electronic Trailer Brake Kit, Mirror Kit, Trailer Tow, Moulding Kit, Body Side, Remote Start, Step Kit, Tubular Side, Step Kit, Tubular Side, Crew Cab Wheel To Wheel, Touch Up Paint) | Rear Axle; Differential And Drive Line (Differential Assembly, Housing And Vent, Rear Axle Assembly, Shaft - Axle, Shaft - Drive) | Rear Suspension (Stabilizer Bar - Rear, Suspension - Rear) | Restraints (Air Bag Module And Clock Spring, Air Bags - Front, Seat Belts - Front, Crew Cab, Seat Belts - Front, Regular Cab, Seat Belts - Rear, Crew Cab) | Steering (Power Steering Hose, 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 (Jack Assembly & Tools, Spare Tire Stowage, Tire Monitoring System, Wheel Covers & Center Caps, Wheels & Hardware)