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

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

Parts › Audi › A4 › 2021

Used OEM 2021 Audi A4 Parts

Filters

MY VEHICLE: 2021 Audi A4

Filter Parts By

× Clear all filters

Audio / Video (28)

Battery / Charging / Starting (21)

Brakes / ABS (58)

Other (23)

Calipers (16)

ABS Pump / Module (10)

Brake Booster (6)

Parking / Emergency Brake (3)

Computers / Modules (82)

Cooling / Heating / Climate (103)

Radiator / Coolant (55)

HVAC / Climate Control (34)

Air Conditioning (14)

Electrical / Wiring (136)

Wiring / Harness (100)

Relay / Fuse (28)

Siren / Horn (8)

Engine (301)

Other (56)

Timing (41)

Fuel (37)

Oil Pan / Pump (25)

Sensors (24)

Turbo / Supercharger (23)

Exhaust (17)

Air / Intake (17)

Mount / Bracket (17)

Rotating Assembly (16)

Evap / EGR (12)

Ignition / Spark (10)

Cylinder Head (4)

Engine Block / Assembly (2)

Exterior (200)

Doors (81)

Other (32)

Wiper / Washer (22)

Bumpers (14)

Hood (13)

Underbody (11)

Convertible Top / Roof (8)

Fenders (7)

Trunk / Hatch (7)

Glass (4)

Core Support (1)

Fasteners / Clips / Bolts (6)

Fuel / Emissions (12)

Interior (509)

Seats (114)

Door Parts (96)

Other (72)

Dash Parts (37)

Interior Switch (37)

Steering Wheel / Parts (34)

Trunk / Hatch (33)

Center Console (27)

Lighting (23)

Pillar Plastics / Fabrics (20)

Air Bags / Parts (9)

Sensors (7)

Lighting (15)

Suspension / Steering (64)

Suspension (32)

Control Arms (16)

Spindle / Wheel Bearing (11)

Steering (5)

Transmission / Driveline (63)

Transmission (40)

Differential (9)

Axle / Driveshaft (9)

Valve Body (5)

Wheels / Rims / Tires (12)

Agate Gray (1) Aluminum (5) Aluminum Ellipse Silver (4) Aluminum Silver (4) Aluminum Trimaran (3) Anthracite (3) Atlas Beige (45) Black (17) Black High Gloss (19) Blue Dusk (4) Brilliant Black (2) Burr Walnut (wood) (5) Carbon Fiber (4) Carmine Red (1) Carrara White Metallic (1) Chrome (10) Cliff Grey (36) Criollo Brown (2) Crystal Silver (5) Dark Chrome (1) Daytona Grey (1) Deep Black (1) Flint Grey (1) Foil Silver Metallic (1) Glacier White (1) Glossy Black (7) Granite Grey (28) Graphite Grey (1) Grey Oak Natural (wood grain) (1) Ibis White (4) Jet Black (1) Magma Red (4) Matador Red Metallic (1) Mercato Blue (12) Monsoon Grey Metallic (2) Moon Silver (3) Mythos Black (6) Navarra Blue (1) Neptune Blue (1) Oryx White (1) Pimento Beige (2) Platinum Grey (1) Polished Aluminum Silver (5) Pure White (1) Quantum Grey (1) Rhodium Silver Metallic (1) Rock Grey (26) Rotor Grey (10) Sabre (Black) (208) Samurai Grey (1) Satin Black (14) Scuba Blue (1) Soul (Black) (41) Stainless Steel (2) Steel Grey (3) Tango Red (10) Titanium Black (1) Titanium Grey (13) Tofana White (2) Tornado Red (1) Twilight Grey (1) Walnut Grain Brown (wood) (4)

As Is (4) Used (1614)

Front (315) Left (402) Rear (278) Right (413)

ABS / Speed Sensor (8) ABS Computer / Module (3) ABS Pump (3) ABS Pump Mount / Bracket (1) AC Compressor Mount Bracket (2) AC Compressor Screw / Bolt (5) AC Compressor and Clutch (1) AC Evaporator (2) AC Expansion Valve (2) AC Hoses / Lines and Fittings (6) AC Pressure Switch / Sensor (4) Air Quality Sensor (2) AirBag Computer / Module (9) AirBag Crash / Impact Sensor (3) Airbag Wire / Wiring Harness (6) Alarm Horn / Siren (7) Alternator / Generator (2) Alternator / Starter Wiring Harness (3) Alternator Bolt / Nut / Fastener (5) Alternator Mount Bracket (2) Ambient Light / Sun Sensor (3) Amp / Amplifier (4) Antenna Booster (9) Armrest / Arm Rest (19) Audio Noise Suppressor / Capacitor (1) Axle / CV Shaft (4) Axle / CV Shaft Shield (5) BCM / Body Control Modules / Computers (12) Battery Air Duct / Tube (2) Battery Cable (8) Battery Control Module / Computer (4) 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 (1) Boost Control Valve / N75 / Diverter (3) Bowden Cable (3) Brake / Clutch Switch (4) Brake Booster (4) Brake Booster Pressure Sensor (1) Brake Caliper (6) Brake Caliper / Carrier Bolts / Fasteners (7) Brake Caliper Carrier / Mount Bracket (5) Brake Dust / Splash Shield (5) Brake Fluid Reservoir / Tank (4) Brake Hose / Line (6) Brake Pad / Shoe (1) Brake Pedal (4) Brake Vacuum Line / Hose (1) Brake Vacuum Pump (4) Bumper Bolts (1) Bumper Mount Bracket (9) Bumper Reinforcement Bar / Bracket (3) Bumper Trim (1) Bumper Valance (3) CD / DVD Changer (3) CV Axle Flange Bolt (4) Cabin Air Filter Housing (4) Cam Shaft / Camshaft (4) Camera Control Module (4) Camshaft Adjustment Solenoid / Gear (12) Camshaft Sensor (6) Cargo Tie Down Hooks (4) Center Console (4) Center Console Insert (3) Center Console Mount Bracket (1) Center Console Trim (26) Charcoal Fuel Vapor Canister (4) Chassis Vent (2) 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 (3) Comfort Control Module / Computer / CCM (7) Convertible Top Switch (1) Coolant Flange (1) Coolant Hose / Pipe / Line (29) Coolant Reservoir / Tank (3) Coolant Temp Sensor / Thermal Switch (5) 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 (6) Dash Bracket / Mount (2) Dash Trim (29) Dash Wire / Wiring Harness (10) Dead Pedal / Foot Rest (2) Deck Lid / Trunk / Hatch (1) Diagnostic / CAN Bus / Gateway Computer / Module (7) 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 (21) Door Panel Storage Area (2) Door Shell / Skin (1) Door Sill / Scuff Panel (5) Door Trim (56) Door Weather Stripping / Seal (15) Door Wire / Wiring Harness (19) Drive / Serpentine Belt (1) Drive Belt Tensioner (2) 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 (15) Engine Air Filter Box (1) Engine Air Intake Duct (1) Engine Balancer Shaft (2) Engine Bolt / Nut / Fastener (23) 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 (5) Engine Oil Dipstick (2) Engine Oil Filter (2) Engine Oil Filter Housing (2) Engine Oil Level Sensor (2) Engine Oil Pan (6) Engine Oil Pump (4) Engine Plastic Cover (2) Engine Sealing Plate / Cover (3) Engine Short Block (2) Engine Start / Stop Switch (1) Engine Timing / Cam Solenoid (5) Engine Valve / Cylinder Head Cover (1) Engine Wire / Wiring Harness (8) 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 (5) Exterior C Pillar Trim / Cover (2) Exterior Door / Window Trim (4) Exterior Door Handle (14) Fender (2) Fender Emblem / Badge (1) Fender Liner (4) Fender Mount / Bracket (7) 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 (27) Fuel / Gas Cap (2) Fuel Gauge Level Sensor / Sending Unit (1) Fuel Injector (8) Fuel Line (13) Fuel Pressure Sensor (7) Fuel Pump (4) Fuel Pump Delivery Computer / Module (5) Fuel Rail (7) Fuse / Relay Box (23) Fuse Box Cover (9) Gas / Fuel Door Lock Actuator (3) 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 (3) Headlight Bulb (1) Headlight Control Module / Computer (4) Headlight Switch (11) Headlight Washer Pump (1) Headliner / Roof Trim (3) Headrest (9) 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 (3) Hood Stop / Adjustment Bumper (1) Hood Weather Stripping / Seal (3) Horn (1) Humidity Sensor (2) Ignition Coil / Pack (10) Ignition Switch w/ Key / Cylinder (1) Illumination / Dimmer Switch (1) Instrument Cluster / Speedometer (13) Intake Manifold and Parts (10) Interior Bolt / Screw Cap / Cover (4) Interior Door Handle (8) Interior Fasteners / Clips (3) Interior Light (23) 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 (9) 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 (5) Lower Pillar (10) Lug Nut Covers (5) Lug Nuts / Bolts (2) MAF / Mass Air Flow Sensor / Meter (1) MAP / Intake Manifold Pressure Sensor (4) MMI Center Control Unit (17) MMI Control Module / Computer (9) Mirror Switch (4) Misc Connector / Plug (37) 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 (61) 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 (8) Power Steering Wiring Harness (1) Pressure Plate / Clutch (1) Purge Valve (2) Radiator (3) Radiator / Core Support Mount Bracket (1) Radiator Coolant Hose (1) Radiator Holding Clip / Pin / Bracket (3) Radio / Stereo (1) Radio / Stereo / Amplifier Wire / Wiring Harness (3) 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 (9) Seat Buckles / Receivers (5) 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 (5) Sound Absorber (5) Sound Generator (1) Spare Tire Air Compressor (1) Spare Tire Tie Down (3) Speaker / Subwoofer (16) Speaker Grille / Cover (19) Spindle / Knuckle (11) Stabilizer / Sway / Track Bar (2) Starter (5) Steering Column (1) Steering Column Adjustment Lever / Switch (1) Steering Column Trim (4) Steering Tie Rod (4) Steering Wheel (13) Steering Wheel AirBag (2) Steering Wheel Switch / Button (11) Stone Guard (3) Storage Tray / Card / Coin Holder (8) Strut / Shock Absorber (7) Strut / Shock Mount / Bushing (8) Strut Tower Brace (2) Sub Frame Mount / Bracket (2) Suction Pump (1) Sun Roof / Glass (2) Sun Roof Switch (3) 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 (1) 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 (3) Thermostat Housing (2) Throttle Body (4) Tie Rod Boot / Bellow (5) Timing Belt / Chain (1) Timing Belt / Chain Covers (6) Timing Belt / Chain Tensioner (6) Timing Chain Guide / Rail (9) Timing Gear / Pulley (8) Tools (5) Tow / Towing Hook (1) Transfer Case / Box (2) Transfer Case / Box Motor (1) Transfer Case Control Module (1) 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 (11) Transmission Oil Cooler (3) Transmission Oil Pan (3) 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 (4) Turbocharger Intercooler Hose (1) Turbocharger Oil Line (8) Turbocharger Wastegate / Actuator (1) 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 (6) Voltage Stabilizer Module (1) Washer Hose (1) Water / Coolant Pump (11) Water Drain Hose / Line (2) Water Pump Mount Bracket (1) Wheel Bearing (7) Wheel Center Caps (4) Window Motor (7) Window Regulator (7) Window Switch (9) 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 (2) Wiper Arm (2) Wiper Motor (2) Wiper Transmission (1) Wiring Organizer / Mount Bracket (5)

Items 121-144 of 1617

Results

Battery Power Voltage Transformer 4K0959663

Battery Power Voltage Transformer

Used Only 1 left

Tweeter Speaker 4M0035454A

Tweeter Speaker

Starting at $17.49

OEM: 4M0035454A

12 Point Screw / Bolt Set (6) N91143203

12 Point Screw / Bolt Set (6)

ABS / Wheel Speed Sensor 4M0927803C

ABS / Wheel Speed Sensor

Starting at $11.99

OEM: 4M0927803C

Used Front, Left, Right

Coolant Reservoir / Bottle / Tank Cap 4M0121321K

Coolant Reservoir / Bottle / Tank Cap

OEM: 4M0121321K Porsche: PAB12132100

Dome Light / Sun Roof Switch 4K0947135AL

Dome Light / Sun Roof Switch

Starting at $119.99

Available in 2 colors

OEM: 4K0947135AL

Fuel Rail Pressure Sensor 06L906054E

Fuel Rail Pressure Sensor

Starting at $18.49

OEM: 06L906054E Porsche: PAC906054E

Ignition Coil / Pack 06H905110L

Ignition Coil / Pack

Starting at $9.49

OEM: 06H905110L Porsche: PAC905110A

Suspension Screw / Bolt Set (4) WHT006966

Suspension Screw / Bolt Set (4)

Starting at $6.99

Anti-Theft Alarm Horn / Siren 5Q0951605B

Anti-Theft Alarm Horn / Siren

Starting at $25.99

OEM: 5Q0951605B Porsche: 9A7951605

Auxiliary Coolant / Water Pump 06H121601P

Auxiliary Coolant / Water Pump

OEM: 06H121601P

Brake Light Sensor / Switch 1K0945459B

Brake Light Sensor / Switch

OEM: 1K0945459B

Dome / Reading Light 4M0947105

Dome / Reading Light

Starting at $6.49

Used Front, Left, Right

Heater Core Hose Grommet 8W0819699

Heater Core Hose Grommet

Hood Insulation / Sound Blanket Clip Set (5) 8E0863727A

Hood Insulation / Sound Blanket Clip Set (5)

OEM: 8E0863727A

Lug Nut / Bolt Cover / Cap Set (5) 4M0601173E

Lug Nut / Bolt Cover / Cap Set (5)

Starting at $30.99

OEM: 4M0601173E

Master Power Window Switch 4M0959851C

Master Power Window Switch

OEM: 4M0959851C

Used Front, Left

Multipurpose Thermal Fuse (30 AMP) 443937105A

Multipurpose Thermal Fuse (30 AMP)

Starting at $10.49

OEM: 443937105A

Puddle / Entry Light (AUDI RINGS) 4G0052134D

Puddle / Entry Light (AUDI RINGS)

OEM: 4G0052134D

Used Front, Left, Rear

Puddle / Entry Light (AUDI RINGS) 4G0052135D

Puddle / Entry Light (AUDI RINGS)

OEM: 4G0052135D

Used Front, Left, Rear, Right

Rain / Light / Humidity Sensor 81A955555A

Rain / Light / Humidity Sensor

OEM: 81A955555A

Red Door Panel Light 8P0947412

Red Door Panel Light

Used Front, Left, Rear, Right

S-Line Badge / Emblem 8N0853601A

S-Line Badge / Emblem

OEM: 8N0853601A

Used Only 1 left

Trunk Hatch Release / Lock Switch Button 4G0959831D

Trunk Hatch Release / Lock Switch Button

Starting at $16.99

OEM: 4G0959831D

Previous 1 … 4 5 6 7 8 … 68 Next

Popular 2021 Audi A4 Part Types

Other / Misc Wire / Wiring Harness 60 parts Door Trim 56 parts Misc Connector / Plug 36 parts Coolant Hose / Pipe / Line 29 parts Dash Trim 29 parts Front Seat 27 parts Center Console Trim 26 parts Door Light 23 parts Engine Bolt / Nut / Fastener 23 parts Fuse / Relay Box 23 parts Interior Light 23 parts Door Control / Door Light Unit / Module 21 parts Door Panel 21 parts Armrest / Arm Rest 19 parts Door Wire / Wiring Harness 19 parts Speaker Grille / Cover 19 parts MMI Center Control Unit 17 parts Seat Trim 17 parts Speaker / Subwoofer 16 parts Door Weather Stripping / Seal 15 parts Engine / Motor Mount Bracket 15 parts Exterior Door Handle 14 parts Upper Pillar 14 parts Vacuum / Crankcase Breather Hose / Line 14 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 on orders over $10 and include 30-day returns. Oversized freight items ship at a flat rate; as-is items are final sale. If a return is our fault, the return label is on us; otherwise you cover return shipping.

Company

About
Our Salvage Yard
New Arrivals
DIY Guides
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

Used BMW Parts
Used Mercedes-Benz Parts
Used Audi Parts
Used Volkswagen Parts
Used Porsche Parts
Used Land Rover 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

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