OEM parts categories for 2011 Honda Ridgeline 4DR RT KA 5AT: Accessories (Alloy Wheel (SBC) (17"), Alloy Wheel (SBC) (18"), Ashtray (Cup-Style), Auto Day - Night Mirror Attachment, Auto Day/Night Mirror, Back-Up Sensor, Bed Extender, Bed Extender (Motorcycle), Bed Tonneau Cover System, Bike Attachment (Bed Mounted), Bike Attachment (Roof), Body Side Protector, Brush Guard-Style Front Lower Trim, Bumper Corner Protector, Cigarette Lighter, Door Edge Guards, Engine Block Heater, First Aid Kit, Foglights, Front and Rear Chrome Bumper Trim, Front Grille, Hitch-Mount Bike Attachment, Hood Air Deflector, I-VES DVD, I-VES DVD Attachment, In-Bed Cargo Net (Truck), In-Bed Cargo Net (Trunk), In-Bed Trunk Carpet, Kayak Attachment, Key-Locking Hitch Pin, Motorcycle Wheel Guide, Nose Mask (Full), Rear Splash Guards, Roof Rack, Running Boards, Security System, Security System Attachment, Short Roof Box, Side Steps (Square Type), Side Steps (Tube Type), Ski Attachment, Snowboard Attachment, Surfboard Attachment, Touch-Up Paint, Towing Spare Rim, Trailer Hitch Harness, Trailer Towing Kit, Under-Seat Storage System, Wheel Lock (Steel Wheel), XM Radio Antenna Kit, XM Radio Attachment Kit, XM Satellite Radio Kit, Y-Adapter Harness) | Body / Air Conditioning (A/C Air Conditioner (Compressor), A/C Air Conditioner (Condenser), A/C Air Conditioner (Hoses - Pipes), A/C Air Conditioner (Sensor), Bed Floor - Cargo, Engine Hood, Engine Mounts, Floor Panels - Trailer Hitch, Front Bulkhead - Dashboard, Front Door Locks - Outer Handle, Front Door Panels, Front Door Windows - Regulator, Front Fenders, Front Sub Frame - Cross Beam, Front Windshield, Inner Panel, Outer Panel, Rear Door Locks - Outer Handle, Rear Door Panels, Rear Door Windows - Regulator, Rear Windshield - Quarter Glass, Tailgate) | Chassis (Accelerator Sensor, Brake Lines (VSA), Brake Master Cylinder - Master Power, Driveshaft - Half Shaft, Front Brake, Front Shock Absorber, Front Stabilizer - Front Knuckle, P.S. Gear Box, P.S. Gear Box Components, P.S. Lines, Parking Brake, Parking Brake Shoe, Pedal, Propeller Shaft, Rear Brake, Rear Differential, Rear Driveshaft, Rear Shock Absorber, Rear Stabilizer - Rear Lower Arm, Select Lever, Steering Column, Steering Wheel (SRS), VSA Modulator, Wheel Disk) | Electrical / Exhaust / Heater / Fuel (Air Cleaner, Air Intake Tube, Audio Unit, Auto Air Conditioner Control, Battery, Canister, Combination Switch, Control Unit (Cabin), Control Unit (Engine Room), Electrical Connector (Front), Electrical Connector (Rear), Exhaust Pipe, Foglight - Daytime Running Light, Front Windshield Wiper, Fuel Pipe, Fuel Tank, Harness Band - Bracket, Headlight, Heater Blower, Heater Unit, Interior Light, Meter Components, Radiator, Radiator Hose, Radio Antenna - Speaker, SRS Unit, Switch, Taillight - License Light, TPMS Unit, Water Hose, Windshield Washer, Wire Harness) | Engine (Alternator (Denso), Alternator Bracket - Tensioner, Breather Tube, Camshaft - Timing Belt, Converter, Cylinder Block - Oil Pan, Cylinder Head Cover, Engine Assy. - Transmission Assy., Engine Cover, Engine Wire Harness, Front Cylinder Head, Fuel Injector, Gasket Kit, Ignition Coil - Spark Plug, Intake Manifold, Oil Pump - Oil Strainer, P.S. Pump - Bracket, Piston - Crankshaft, Rear Cylinder Head, Starter Motor (Denso), Throttle Body, Timing Belt Cover, Torque Converter, Tubing, Valve - Rocker Arm (Front), Valve - Rocker Arm (Rear), Water Hose, Water Pump - Sensor) | Interior / Bumper (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), Grommet (Front), Grommet (Lower), Grommet (Rear), Grommet (Side), Instrument Panel, Instrument Panel Garnish, Mirror, Molding, Pillar Garnish, Rear Bumper, Rear Door Lining, Rear Seat, Rear Seat Components, Roof Lining, Seat Belts, Tools - Jack) | Transmission - Automatic (AT Accumulator Body, AT Clutch (2nd), AT Clutch (3rd), AT Clutch (4th-5th), AT Clutch (Low), AT Countershaft, AT Differential, AT Main Valve Body, AT Mainshaft, AT Oil Level Gauge - Position Sensor, AT Regulator Body, AT Secondary Body, AT Secondary Shaft, AT Sensor - Solenoid, AT Shift Fork, AT Third Shaft, AT Torque Converter Case, AT Transfer, AT Transmission Case)