Audi BMW Mercedes-Benz Porsche Volkswagen Land Rover Sell Your Car

Audi BMW Mercedes-Benz Porsche Volkswagen Land Rover Sell Your Car

Parts › Audi › A4 › 2021 › AC Hoses / Lines and Fittings

2021 Audi A4 AC Hoses / Lines and Fittings - Used OEM

Filters

MY VEHICLE: 2021 Audi A4

Filter Parts By

× Clear all filters

Category

Cooling / Heating / Climate (8)

Air Conditioning (8)

Condition

Used (8)

Part Type

ABS / Speed Sensor (10) ABS Computer / Module (3) ABS Pump (3) ABS Pump Mount / Bracket (1) AC Compressor Mount Bracket (1) AC Compressor Screw / Bolt (5) AC Compressor and Clutch (2) AC Evaporator (2) AC Expansion Valve (2) AC Hoses / Lines and Fittings (8) AC Pressure Switch / Sensor (4) Air Quality Sensor (4) AirBag Computer / Module (9) AirBag Crash / Impact Sensor (3) Airbag Wire / Wiring Harness (6) Alarm Horn / Siren (7) Alternator / Generator (1) Alternator / Starter Wiring Harness (4) Alternator Bolt / Nut / Fastener (5) Alternator Mount Bracket (1) Ambient Light / Sun Sensor (3) Amp / Amplifier (5) Antenna Booster (9) Armrest / Arm Rest (20) Audio Noise Suppressor / Capacitor (1) Axle / CV Shaft (5) Axle / CV Shaft Shield (6) BCM / Body Control Modules / Computers (9) Battery Air Duct / Tube (2) Battery Cable (8) Battery Control Module / Computer (3) Battery Cover / Box (6) Battery Terminal / Junction Box (7) Battery Tray / Hold Down / Strap (4) Blank / Dummy Switch (4) Blower Motor (5) Body Trim Bolt / Screw Cap / Cover (3) Body Wire / Wiring Harness (2) Boost Control Valve / N75 / Diverter (4) Bowden Cable (3) Brake / Clutch Switch (4) Brake Booster (4) Brake Booster Pressure Sensor (1) Brake Caliper (7) Brake Caliper / Carrier Bolts / Fasteners (5) Brake Caliper Carrier / Mount Bracket (5) Brake Dust / Splash Shield (4) Brake Fluid Reservoir / Tank (4) Brake Hose / Line (8) Brake Master Cylinder (1) Brake Pad / Shoe (1) Brake Pedal (4) Brake Vacuum Line / Hose (1) Brake Vacuum Pump (4) Bumper Bolts (1) Bumper Mount Bracket (10) Bumper Reinforcement Bar / Bracket (3) Bumper Trim (1) Bumper Valance (3) CD / DVD Changer (2) CV Axle Flange Bolt (4) Cabin Air Filter Housing (3) Cam Shaft / Camshaft (5) Camera Control Module (4) Camshaft Adjustment Solenoid / Gear (12) Camshaft Sensor (6) Cargo Tie Down Hooks (4) Center Console (4) Center Console Insert (4) Center Console Mount Bracket (1) Center Console Trim (28) Charcoal Fuel Vapor Canister (4) Chassis Vent (1) Child Restraint / Hook Cover / Cap (3) Cigarette Lighter (3) Climate / Temp Control Unit (10) Climate Air Temp Sensor (5) Climate Air Vent / Duct (11) Climate Control Wire / Wiring Harness (3) Clock Spring (1) Coil Spring Mount / Bushing (2) Comfort Control Module / Computer / CCM (4) Convertible Top Switch (1) Coolant Flange (1) Coolant Hose / Pipe / Line (29) Coolant Reservoir / Tank (3) Coolant Temp Sensor / Thermal Switch (6) Cooling Fan Misc (1) Cowl / Firewall Cover (4) Crankcase / PCV Vent Valve (4) Crankshaft (1) Crankshaft Bolt (2) Crankshaft Pulley / Harmonic Balancer (2) Crankshaft Sensor (3) Cup Holder (7) Dash Bracket / Mount (2) Dash Trim (29) Dash Wire / Wiring Harness (12) Dead Pedal / Foot Rest (2) Deck Lid / Trunk / Hatch (1) Diagnostic / CAN Bus / Gateway Computer / Module (5) Differential (3) Differential Control Module (1) Differential Mount Bracket (1) Dome / Map Light (7) Door Brake / Check Rod / Hinge (11) Door Control / Door Light Unit / Module (21) Door Frame (1) Door Glass (4) Door Latch (2) Door Light (23) Door Lock Actuator (10) Door Mount / Bracket (2) Door Panel (22) Door Panel Storage Area (2) Door Shell / Skin (1) Door Sill / Scuff Panel (6) Door Trim (60) Door Weather Stripping / Seal (16) Door Wire / Wiring Harness (19) Drive / Serpentine Belt (1) Drive Belt Tensioner (3) Drive Select Switch (3) ECU / Engine Control Module Housing / Cover (1) ESP / DTC / Traction Control Switch (3) Electric Cooling Fan (3) Electric Fan Assembly (1) Electric Vehicle Battery (2) Emergency Call Button / SOS Switch (2) Engine / Motor Mount (1) Engine / Motor Mount Bracket (13) Engine Air Filter Box (1) Engine Air Intake Duct (2) Engine Balancer Shaft (2) Engine Bolt / Nut / Fastener (22) Engine Control Module / ECM / ECU / DME (3) Engine Cooler Pipe / Line (1) Engine Cylinder Head and Parts (2) Engine Oil Cap (7) Engine Oil Cooler (4) Engine Oil Dipstick (1) Engine Oil Filter (2) Engine Oil Filter Housing (2) Engine Oil Level Sensor (2) Engine Oil Pan (4) Engine Oil Pump (5) Engine Plastic Cover (2) Engine Sealing Plate / Cover (4) Engine Short Block (2) Engine Start / Stop Switch (1) Engine Timing / Cam Solenoid (5) Engine Valve / Cylinder Head Cover (1) Engine Wire / Wiring Harness (9) Evap Hoses / Lines (1) Exhaust Hardware / Clamp (3) Exhaust Manifold (1) Exhaust Mount Bracket / Hanger (3) Exhaust Pipe (1) Exterior B Pillar Trim / Cover (3) Exterior Bolt / Nut / Fastener (4) Exterior C Pillar Trim / Cover (2) Exterior Door / Window Trim (5) Exterior Door Handle (14) Fender (2) Fender Liner (4) Fender Mount / Bracket (7) Fender Trim / Flare (1) First Aid Kit (2) Flexplate (2) Floor Mats and Carpet (3) Flywheel (4) Flywheel / Flexplate Bolt (5) Fog Light Switch (7) Frame Brace / Support Bracket (4) Front Seat (28) Fuel / Gas Cap (3) Fuel Gauge Level Sensor / Sending Unit (1) Fuel Injector (8) Fuel Line (13) Fuel Pressure Sensor (6) Fuel Pump (4) Fuel Pump Delivery Computer / Module (4) Fuel Rail (7) Fuse / Relay Box (22) Fuse Box Cover (8) Gas / Fuel Door Lock Actuator (4) Gas / Fuel Filler Door (3) Gas Pedal / Accelerator Module (3) Glove Box (7) Glove Box Strut / Actuator (1) Grab Handle (10) HVAC Box Parts and Servos (4) Hatch Lift Pump / Motor Module (3) Hazard Switch (1) Head / Heads Up Display / HUD (2) Headlight / Head Lamp / Light (1) Headlight / Suspension Leveling Sensor (3) Headlight Ballast / Igniter (2) Headlight Bulb (1) Headlight Control Module / Computer (3) Headlight Switch (11) Headlight Washer Pump (1) Headliner / Roof Trim (3) Headrest (10) Heat Shield (7) Heater Bypass Valve (1) Heater Core (3) Heater Core Hose (1) High Pressure Fuel Pump / HPFP (3) Homelink / Garage Door Module (6) Hood Insulation Blanket (2) Hood Latch Release Cable (1) Hood Latch Release Lever / Switch (3) Hood Shock / Strut (4) Hood Stop / Adjustment Bumper (1) Hood Weather Stripping / Seal (3) Horn (2) Humidity Sensor (2) Ignition Coil / Pack (10) Ignition Switch w/ Key / Cylinder (1) Illumination / Dimmer Switch (1) Instrument Cluster / Speedometer (14) Intake Manifold and Parts (10) Interior Bolt / Screw Cap / Cover (4) Interior Door Handle (9) Interior Fasteners / Clips (3) Interior Light (26) Kessy / Keyless Entry Antenna (7) Knee AirBag (3) Knee Panel (1) Knock Sensor (2) LCD Screen / Info Display (10) Lane / Park Assist Camera (3) Lane Change Assist Module / Computer (11) Leak Detection Pump / LDP (2) License Plate Light (2) License Plate Mount / Bracket (1) Light / Headlight Wire / Wiring Harness (2) Lock / Unlock Switch (10) Lower Control Arm (6) Lower Pillar (10) Lug Nut Covers (5) Lug Nuts / Bolts (1) MAF / Mass Air Flow Sensor / Meter (1) MAP / Intake Manifold Pressure Sensor (4) MMI Center Control Unit (17) MMI Control Module / Computer (8) Mirror Switch (4) Misc Connector / Plug (39) Motion Detector / Sensor (1) Multifunction Relay (8) Navigation / NAV Unit (2) Navigation Wire / Wiring Harness (1) Oil Pressure Sensor (9) Oil Sump Windage Tray (1) Onboard Power Supply Control Module / Unit (10) Other / Misc Wire / Wiring Harness (62) Other Relay (5) Oxygen / O2 Sensor (5) Park Assist Sensor (2) Park Assist Switch (2) Parking Brake Cable (2) Parking Brake Switch (1) Pedal Cluster (2) Piston / Connecting Rod (5) Power Outlet (7) Power Steering Wiring Harness (1) Pressure Plate / Clutch (1) Purge Valve (2) Radiator (3) Radiator / Core Support Mount Bracket (1) Radiator Air Guide / Duct (1) Radiator Coolant Hose (1) Radiator Holding Clip / Pin / Bracket (3) Radio / Stereo (1) Radio / Stereo / Amplifier Wire / Wiring Harness (4) Rain Sensor (2) Rain Tray / Water Deflector (7) Rear Bumper Cover (1) Rear Seat (10) Rear Seat Panel / Net (3) Rear View Mirror (2) Roof Antenna / Shark Fin (1) Roof Weather Stripping / Seal (1) Seat / Memory Control Module / Computer (3) Seat Adjustment Handle / Lever (3) Seat Belts (8) Seat Buckles / Receivers (4) Seat Cooling Fan (1) Seat Fasteners / Clips (2) Seat Light (1) Seat Memory Switch (1) Seat Motor (5) Seat Mount / Bracket (2) Seat Occupant Detection Module / Sensor (1) Seat Rail / Frame (3) Seat Sets (1) Seat Switch (13) Seat Trim (17) Seat Wire / Wiring Harness (11) Secondary Air Pump (2) Shifter Assembly (2) Shifter Display Unit (5) Shifter Knob / Boot (4) Side Marker Lights / Reflectors (2) Side View Mirror (8) Sound Absorber (5) Sound Generator (1) Spare Tire Air Compressor (1) Spare Tire Tie Down (3) Speaker / Subwoofer (17) Speaker Grille / Cover (20) Spindle / Knuckle (11) Stabilizer / Sway / Track Bar (3) Starter (4) Steering Column (2) Steering Column Trim (5) Steering Tie Rod (4) Steering Wheel (14) Steering Wheel AirBag (2) Steering Wheel Switch / Button (11) Stone Guard (4) Storage Tray / Card / Coin Holder (8) Strut / Shock Absorber (7) Strut / Shock Mount / Bushing (9) Strut Tower Brace (2) Sub Frame Mount / Bracket (2) Suction Pump (1) Sun Roof / Glass (2) Sun Roof Switch (4) Sun Visor and Components (4) Sunroof / Sun Roof Control Module (1) Sunroof / Sun Roof Motor (2) Suspension Bolt / Nut / Fastener (5) Suspension Computer / Control Module / Air Ride (2) Sway / Stabilizer Bar End Link (5) Tail Light / Lamp (3) Tail Light Bulb (1) Tail Light Wire / Wiring Harness (6) Telephone / Telematics Control Module / Computer (11) Thermostat (6) Thermostat Housing (5) Throttle Body (5) Tie Rod Boot / Bellow (5) Timing Belt / Chain (1) Timing Belt / Chain Covers (6) Timing Belt / Chain Tensioner (7) Timing Chain Guide / Rail (9) Timing Gear / Pulley (8) Tools (4) Tow / Towing Hook (2) Transfer Case / Box (2) Transfer Case / Box Motor (2) Transfer Case Control Module (2) Transmission Axle Flange (3) Transmission Case / Housing (1) Transmission Cooler Line / Pipe (3) Transmission Gear Position Switch (1) Transmission Gears and Cylinders (1) Transmission Mount (3) Transmission Mount Bracket (10) Transmission Oil Cooler (3) Transmission Oil Pan (2) Transmission Screw / Bolt / Fastener (2) Trunk / Hatch Access Panel (4) Trunk / Hatch Cargo Cover (1) Trunk / Hatch Emblem / Badge (1) Trunk / Hatch Hinge (2) Trunk / Hatch Module (4) Trunk / Hatch Stop / Adjustment (5) Trunk / Hatch Switch (2) Trunk / Hatch Trim (7) Trunk Latch (2) Trunk Latch Cover (1) Trunk Mat / Carpet Spare Cover (1) Trunk Release Switch / Handle (3) Trunk Weather Stripping / Seal (1) Turbo Mount / Bracket (1) Turbocharger (8) Turbocharger Coolant Line (3) Turbocharger Intercooler Hose (1) Turbocharger Oil Line (9) USB Port / Connector (3) Underbody / Under Panel Mount Fastener (1) Underbody Panels / Skid Plate (1) Upper Control Arm (11) Upper Pillar (14) Vacuum / Crankcase Breather Hose / Line (14) Vacuum Solenoid Valve (3) Valet Switch (2) Valve Body / Mechatronic (4) Washer Hose (1) Water / Coolant Pump (13) Water Drain Hose / Line (2) Water Pump Mount Bracket (1) Wheel Bearing (8) Wheel Center Caps (2) Window Motor (7) Window Regulator (9) Window Switch (10) Windshield Sprayer / Nozzle (7) Windshield Washer Pump (4) Windshield Washer Tank / Reservoir (2) Windshield Wiper Screw / Nut Cap (2) Wiper / Turn Signal / Cruise Stalks / Switch (3) Wiper Arm (2) Wiper Motor (2) Wiper Transmission (1) Wiring Organizer / Mount Bracket (5)

Items 1-8 of 8

Results

AC Hose / Line / Pipe 8W0816743D

AC Hose / Line / Pipe

OEM: 8W0816743D

AC Hose / Line / Pipe 8W0816743BN

AC Hose / Line / Pipe

OEM: 8W0816743BN

AC Hose / Line / Pipe 8W1816720G

AC Hose / Line / Pipe

Starting at $15.99

OEM: 8W1816720G

AC Hose / Line / Pipe 8W1816720

AC Hose / Line / Pipe

Starting at $31.99

AC Hose / Line / Pipe 8W0816743BP

AC Hose / Line / Pipe

Starting at $36.49

OEM: 8W0816743BP

AC Hose / Line / Pipe 8W1816740

AC Hose / Line / Pipe

Starting at $16.49

AC Hose / Line / Pipe Cap 5Q0816231

AC Hose / Line / Pipe Cap

Starting at $6.68

OEM: 5Q0816231 Porsche: 9A781623100

AC Hose / Line / Pipe Cap 5Q0816581

AC Hose / Line / Pipe Cap

OEM: 5Q0816581 Porsche: 9A781658100

More 2021 Audi A4 Part Types

Other / Misc Wire / Wiring Harness 62 parts Door Trim 60 parts Misc Connector / Plug 39 parts Coolant Hose / Pipe / Line 29 parts Dash Trim 29 parts Center Console Trim 28 parts Front Seat 28 parts Interior Light 26 parts Door Light 23 parts Door Panel 22 parts Engine Bolt / Nut / Fastener 22 parts Fuse / Relay Box 22 parts Door Control / Door Light Unit / Module 21 parts Armrest / Arm Rest 20 parts Speaker Grille / Cover 20 parts Door Wire / Wiring Harness 19 parts MMI Center Control Unit 17 parts Seat Trim 17 parts Speaker / Subwoofer 17 parts Door Weather Stripping / Seal 16 parts Exterior Door Handle 14 parts Instrument Cluster / Speedometer 14 parts Steering Wheel 14 parts Upper Pillar 14 parts

Other Years for Audi A4 AC Hoses / Lines and Fittings

2017 9 parts 2018 9 parts 2019 9 parts 2020 9 parts 2022 8 parts 2023 8 parts 2024 8 parts 2009 7 parts 1999 5 parts 2000 5 parts 2001 5 parts 2010 4 parts 1997 3 parts 1998 3 parts 2005 3 parts 2006 3 parts 2007 3 parts 2008 3 parts 2025 3 parts

★ eBay Top Rated · 100,000+ positive ratings · Hundreds of 5★ Google reviews · 400,000+ parts shipped · Family-run since 2011 · Free shipping & 30-day returns Most items ship free to the lower 48 and include 30-day returns. Oversized freight items ship at a flat rate; as-is clearance items are final sale.

Company

About
Contact
Sell Your Car

Customer Service

My Account
Returns

Visit Us

127 6th St S
Waverly, MN 55390

Mon–Thu: 8am–5pm CT
Fri: 8am–2pm CT

Popular Parts

Audi Coolant Hose / Pipe / Line
Audi Door Trim
Audi Other / Misc Wire / Wiring Harness
BMW Door Trim
Porsche Coolant Hose / Pipe / Line
Volkswagen Coolant Hose / Pipe / Line
Audi Door Weather Stripping / Seal
Audi Door Wire / Wiring Harness
Audi Dash Trim
BMW Coolant Hose / Pipe / Line
Audi Seat Trim
Volkswagen Door Trim

© 2010–present Wolf Auto LLC · Not affiliated with any OEM