OEM parts categories for 2018 Honda Ridgeline 4DR SPORT AWD KA 6AT: Accessories (2ND Row Cargo Tray, 2ND Row Storage System, All Season Floor Mats (High Wall - Black), Alloy Wheel (Machined/Painted), Alloy Wheel (SBC) (18"), Ashtray Cupholder, Automatic Dimming Mirror - Attachment, Back-Up Sensor - Sensor Attachment, Bed Extender, Bed Extender - Motorcycle, Bike Attachment (Roof) (Downtube), Body Side Molding, Cargo Net, Cargo Net (Truck Bed), CD Player, Door Edge Film, Door Edge Guard, Door Visors, Engine Block Heater, Extended View Mirror, Fender Flare, First Aid Kit, Front Skid Plate Garnish, Hood Air Deflector, Hood Air Deflector (Low Profile), Illuminated Door Sill Garnish (Blue & Red), In-Bed Trunk Carpet, In-Bed Trunk Dividers, KAYAK Attachment, Lower Door Trim (Chrome), Nose Mask (Full), Roof Box (Short), Roof Crossbars, Roof Rails (Black), Roof Rails (Silver), Running Board (Black), Running Board (Chrome), Running Board (Illuminated), Seat Cover (2nd Row), Ski - Snowboard Attachment, Snowboard Attachment, Splash Guards (Front), Splash Guards (Rear), Sport Grille, Steering Wheel (Heated), Surfboard Attachment, Tent, Tonneau Cover Locking Attachment, Tonneau Hard Cover, Touch-Up Paint, Trailer Hitch, Trailer Hitch Harness & Tow Kit, Wheel Locks) | Body / Air Conditioning (A/C Air Conditioner (Compressor), A/C Air Conditioner (Hoses/Pipes), A/C Condenser, A/C Sensor, Bed Floor - Cargo, Engine Hood, Engine Mounts, Floor Panels, Front Bulkhead - Dashboard, Front Door Glass - Door Regulator, Front Door Locks - Outer Handle, Front Door Panels, Front Fenders, Front Sub Frame - Rear Beam, Front Windshield, Inner Panel, Outer Panel - Roof Panel, Rear Door Glass - Door Regulator, Rear Door Locks - Outer Handle, Rear Door Panels, Rear Windshield, Tailgate) | Chassis (Brake Lines (VSA), Brake Master Cylinder - Master Power, Driveshaft, Front Brake, Front Driveshaft Set Short Parts, Front Knuckle, Front Shock Absorber, Parking Brake, Parking Brake Shoe, Pedal, Propeller Shaft, Rear Brake, Rear Differential - Mount, Rear Driveshaft, Rear Driveshaft Set Short Parts, Rear Knuckle, Rear Shock Absorber, Select Lever, Steering Column (EPS), Steering Gear Box, Steering Wheel (SRS), VSA Modulator, Wheel Disk) | Electrical / Exhaust / Heater / Fuel (A/C Air Conditioner Control (Front), Air Cleaner, Antenna, ATF Cooler, Audio Unit, Battery, Canister, Combination Switch, Control Unit (Cabin), Control Unit (Engine Room), Electrical Connector (Front), Electrical Connector (Rear), Exhaust Pipe - Muffler, Foglight, Front Turn Light, Front Windshield Wiper, Fuel Filler Pipe, Fuel Pipe, Fuel Tank, GPS Antenna - Rearview Camera, Headlight, Heater Blower, Heater Unit, Interior Light, Key Cylinder Set, Meter, Radiator, Radiator Hose - Reserve Tank, Resonator Chamber, Smart Unit, Speaker, SRS Unit, Switch, Taillight - License Light, Water Hose, Windshield Washer, Wire Harness, Wire Harness Bracket) | Engine (Alternator (Denso), Alternator Belt, Auto Tensioner, Breather Tube, Camshaft - Timing Belt, Converter, Crankshaft - Piston, Cylinder Block - Oil Pan, Cylinder Head Cover, Engine Assy. - Transmission Assy., Engine Cover, Engine Wire Harness, Engine Wire Harness Stay, Front Cylinder Head, Fuel Injector, Gasket Kit, Intake Manifold, Oil Pump, Plug Hole Coil - Plug, Purge Control Solenoid Valve, Rear Cylinder Head, Starter Motor (Denso), Throttle Body, Timing Belt Cover, Torque Converter, Valve - Rocker Arm (Front), Valve - Rocker Arm (Rear), Water Hose, Water Pump) | Interior / Bumper (Center Console, Duct, Emblems - Caution Labels, Floor Mat, Front Bumper, Front Door Lining, Front Grille, Front Seat (Driver Side), Front Seat (Passenger Side), Front Seat Components (Driver Side) (Manual Height), Front Seat Components (Passenger Side) (Manual Seat), Grommet (Floor), Grommet (Front), Grommet (Lower), Grommet (Rear), Instrument Panel, Instrument Panel Garnish (Driver Side), Instrument Panel Garnish (Passenger Side), Mirror, Molding, Pillar Garnish, Rear Bumper, Rear Door Lining, Rear Seat (Driver Side), Rear Seat (Passenger Side), Rear Seat Components, Roof Lining, Seat Belts (Front), Seat Belts (Rear), Side Sill Garnish, Tools - Jack) | Transmission - Automatic (AT Countershaft (6AT), AT Differential (6AT), AT Idle Shaft (6AT), AT Main Valve Body (6AT), AT Mainshaft - Clutch (3rd-6th), AT Manual Valve Body, AT Oil Level Gauge - ATF Pipe - ATF Warmer (6AT), AT Regulator Body, AT Secondary Shaft - Clutch (Low/2nd-5th), AT Sensor - Solenoid - Secondary Body, AT Shift Fork, AT Third Shaft - Clutch (4th), AT Torque Converter Case, AT Transfer (6AT), AT Transmission Case)