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 › S4 › 2021

Used OEM 2021 Audi S4 Parts

Filters

MY VEHICLE: 2021 Audi S4

Filter Parts By

× Clear all filters

Audio / Video (29)

Battery / Charging / Starting (17)

Brakes / ABS (69)

Other (26)

Calipers (20)

ABS Pump / Module (11)

Brake Booster (7)

Parking / Emergency Brake (4)

Master Cylinder (1)

Computers / Modules (87)

Cooling / Heating / Climate (111)

Radiator / Coolant (61)

HVAC / Climate Control (36)

Air Conditioning (14)

Electrical / Wiring (148)

Wiring / Harness (106)

Relay / Fuse (31)

Siren / Horn (11)

Engine (200)

Other (35)

Rotating Assembly (23)

Exhaust (21)

Fuel (19)

Timing (17)

Turbo / Supercharger (15)

Mount / Bracket (13)

Sensors (12)

Oil Pan / Pump (12)

Cylinder Head (11)

Air / Intake (10)

Evap / EGR (8)

Ignition / Spark (4)

Exhaust (2)

Exterior (199)

Doors (75)

Other (34)

Wiper / Washer (22)

Hood (14)

Bumpers (14)

Underbody (14)

Convertible Top / Roof (9)

Fenders (7)

Trunk / Hatch (6)

Glass (3)

Core Support (1)

Fasteners / Clips / Bolts (2)

Fuel / Emissions (4)

Interior (505)

Seats (114)

Door Parts (97)

Other (77)

Dash Parts (35)

Trunk / Hatch (34)

Interior Switch (34)

Steering Wheel / Parts (32)

Lighting (25)

Center Console (25)

Pillar Plastics / Fabrics (17)

Air Bags / Parts (9)

Sensors (6)

Lighting (12)

Suspension / Steering (77)

Suspension (40)

Control Arms (20)

Spindle / Wheel Bearing (11)

Steering (6)

Transmission / Driveline (62)

Transmission (44)

Axle / Driveshaft (8)

Differential (7)

Valve Body (3)

Wheels / Rims / Tires (14)

Agate Gray (1) Aluminum (7) Aluminum Ellipse Silver (3) Aluminum Silver (3) Aluminum Trimaran (3) Anthracite (3) Atlas Beige (44) Black (15) Black High Gloss (18) Burr Walnut (wood) (3) Carbon Fiber (5) Carmine Red (1) Carrara White Metallic (1) Chrome (9) Cliff Grey (33) Criollo Brown (2) Crystal Silver (5) Dark Chrome (1) Daytona Grey (4) Deep Black (1) Dolomite Silver (1) Flint Grey (1) Foil Silver Metallic (1) Glacier White (2) Glossy Black (7) Granite Grey (27) Graphite Grey (1) Grey (Gray) (1) Ibis White (4) Jet Black (1) Magma Red (6) Mercato Blue (11) Monsoon Grey Metallic (3) Moon Silver (3) Mythos Black (5) 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 (9) Sabre (Black) (207) Samurai Grey (1) Satin Black (13) Scuba Blue (1) Soul (Black) (38) Stainless Steel (1) Steel Grey (2) Tango Red (9) Titanium Black (1) Titanium Grey (11) Tofana White (1) Tornado Red (1) Twilight Grey (1) Walnut Grain Brown (wood) (4)

As Is (4) Used (1541)

Front (320) Left (435) Rear (290) Right (439)

ABS / Speed Sensor (8) ABS Computer / Module (3) ABS Pump (3) ABS Pump Mount / Bracket (1) AC Compressor Screw / Bolt (3) AC Evaporator (2) AC Expansion Valve (2) AC Hoses / Lines and Fittings (7) AC Pressure Switch / Sensor (4) Air / Coil Spring (1) 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 (3) Alternator Bolt / Nut / Fastener (3) Alternator Mount Bracket (1) Ambient Light / Sun Sensor (3) Amp / Amplifier (4) Antenna Booster (9) Armrest / Arm Rest (20) Audio Noise Suppressor / Capacitor (1) Axle / CV Shaft (4) Axle / CV Shaft Shield (5) BCM / Body Control Modules / Computers (11) Battery Air Duct / Tube (2) Battery Cable (7) Battery Control Module / Computer (4) Battery Cover / Box (6) Battery Terminal / Junction Box (8) Battery Tray / Hold Down / Strap (4) Belly Pan / Splash Shield (1) Blank / Dummy Switch (4) Blower Motor (6) Body Trim Bolt / Screw Cap / Cover (3) Body Wire / Wiring Harness (1) Boost Control Valve / N75 / Diverter (2) Bowden Cable (2) Brake / Clutch Switch (4) Brake Booster (4) Brake Booster Bolt / Fasteners (1) Brake Booster Pressure Sensor (1) Brake Caliper (7) Brake Caliper / Carrier Bolts / Fasteners (9) Brake Caliper Carrier / Mount Bracket (7) Brake Dust / Splash Shield (7) Brake Fluid Reservoir / Tank (5) Brake Hose / Line (4) Brake Master Cylinder (1) Brake Pad / Shoe (2) Brake Pedal (3) Brake Vacuum Line / Hose (3) Brake Vacuum Pump (2) Bumper Bolts (1) Bumper Mount Bracket (9) Bumper Reinforcement Bar / Bracket (3) Bumper Trim (1) Bumper Valance (3) CD / DVD Changer (2) CV Axle Flange Bolt (3) Cabin Air Filter Housing (3) Cam Shaft / Camshaft (7) Cam Shaft Bearing Cap (4) Camera Control Module (7) Camshaft Adjustment Solenoid / Gear (9) Camshaft Sensor (1) Cargo Tie Down Hooks (3) Center Console (4) Center Console Insert (3) Center Console Mount Bracket (1) Center Console Trim (27) Charcoal Fuel Vapor Canister (5) Chassis Vent (3) Child Restraint / Hook Cover / Cap (3) Cigarette Lighter (3) Climate / Temp Control Unit (8) Climate Air Temp Sensor (4) Climate Air Vent / Duct (11) Climate Control Wire / Wiring Harness (3) Clock Spring (1) Coil Spring Mount / Bushing (4) Comfort Control Module / Computer / CCM (5) Compact Spare Wheel / Tire (1) Convertible Top Switch (1) Coolant Flange (1) Coolant Hose / Pipe / Line (33) Coolant Hose / Pipe Seal / O-Ring (1) Coolant Reservoir / Tank (5) Coolant Temp Sensor / Thermal Switch (5) Cooling Fan Misc (1) Cowl / Firewall Cover (3) Crankcase / PCV Vent Valve (1) Crankshaft (2) Crankshaft Bolt (2) Crankshaft Pulley / Harmonic Balancer (1) Crankshaft Sensor (1) Cruise Control Module / Computer (2) Cup Holder (7) Cylinder Head Gasket (1) Dash Bracket / Mount (4) Dash Trim (26) Dash Wire / Wiring Harness (10) Dead Pedal / Foot Rest (3) Deck Lid / Trunk / Hatch (1) Diagnostic / CAN Bus / Gateway Computer / Module (12) Differential (3) Differential Control Module (2) Differential Mount Bracket (1) Dome / Map Light (7) Door Brake / Check Rod / Hinge (6) Door Control / Door Light Unit / Module (23) Door Frame (1) Door Glass (3) Door Latch (2) Door Light (20) 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 (54) Door Weather Stripping / Seal (14) Door Wire / Wiring Harness (19) Drive Select Switch (3) 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 (3) Engine / Motor Mount Bracket (11) Engine Air Filter Box (1) Engine Air Intake Duct (1) Engine Balancer Shaft (4) Engine Bolt / Nut / Fastener (20) Engine Control Module / ECM / ECU / DME (1) Engine Cooler Pipe / Line (1) Engine Cylinder Head and Parts (5) Engine Intake Air Temp Sensor (1) Engine Oil Cap (3) Engine Oil Cooler (1) Engine Oil Dipstick (3) Engine Oil Filter Housing (4) Engine Oil Level Sensor (1) Engine Oil Pan (1) Engine Oil Pump (4) Engine Plastic Cover (1) Engine Sealing Plate / Cover (5) Engine Start / Stop Switch (1) Engine Timing / Cam Solenoid (1) Engine Valve / Cylinder Head Cover (2) Engine Wire / Wiring Harness (3) Evap Hoses / Lines (3) Exhaust Hardware / Clamp (3) Exhaust Manifold (2) Exhaust Motor / Servo (1) Exhaust Mount Bracket / Hanger (7) Exhaust Pipe (5) Exterior B Pillar Trim / Cover (3) Exterior Bolt / Nut / Fastener (4) Exterior C Pillar Trim / Cover (2) Exterior Door / Window Trim (4) Exterior Door Handle (18) Fender (2) Fender Emblem / Badge (1) Fender Liner (4) Fender Mount / Bracket (7) First Aid Kit (1) Flexplate (1) Floor Mats and Carpet (2) Flywheel (1) Flywheel / Flexplate Bolt (3) Fog Light Switch (8) Frame Brace / Support Bracket (5) Front Seat (25) Fuel / Gas Cap (3) Fuel Injector (3) Fuel Line (3) Fuel Pressure Sensor (4) Fuel Pump (4) Fuel Pump Delivery Computer / Module (1) Fuel Rail (2) Fuse / Relay Box (25) Fuse Box Cover (9) Gas / Fuel Door Lock Actuator (5) 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 (1) Headlight / Head Lamp / Light (1) Headlight / Suspension Leveling Sensor (5) Headlight Ballast / Igniter (2) Headlight Bulb (1) Headlight Control Module / Computer (3) Headlight Switch (12) Headlight Washer Pump (1) Headliner / Roof Trim (3) Headrest (9) Heat Shield (3) 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 (4) Hood Shock / Strut (3) Hood Stop / Adjustment Bumper (1) Hood Weather Stripping / Seal (3) Horn (4) Humidity Sensor (2) Idler Pulley (1) Ignition Coil / Pack (4) Illumination / Dimmer Switch (1) Instrument Cluster / Speedometer (13) Intake Manifold and Parts (4) Intake Valve (1) Interior Bolt / Screw Cap / Cover (3) Interior Door Handle (6) Interior Fasteners / Clips (3) Interior Light (24) Kessy / Keyless Entry Antenna (7) Knee AirBag (3) Knee Panel (1) Knock Sensor (1) LCD Screen / Info Display (10) Lane / Park Assist Camera (2) Lane Change Assist Module / Computer (11) Leak Detection Pump / LDP (1) License Plate Light (2) License Plate Mount / Bracket (1) Light / Headlight Wire / Wiring Harness (2) Lock / Unlock Switch (10) Lower Control Arm (9) Lower Pillar (9) Lug Nut Covers (5) Lug Nuts / Bolts (3) MAP / Intake Manifold Pressure Sensor (1) MMI Center Control Unit (16) MMI Control Module / Computer (9) Mirror Switch (4) Misc Connector / Plug (42) Motion Detector / Sensor (2) Muffler (4) Multifunction Relay (8) Music Interface Cable (1) Navigation / NAV Unit (2) Navigation Wire / Wiring Harness (1) Oil Pressure Sensor (3) Oil Sump Windage Tray (2) Onboard Power Supply Control Module / Unit (11) Other / Misc Wire / Wiring Harness (69) Other Relay (6) Oxygen / O2 Sensor (3) Park Assist Sensor (2) Park Assist Switch (2) Parking Brake Cable (2) Parking Brake Switch (2) Pedal Cluster (1) Piston / Connecting Rod (8) Power Outlet (8) Power Steering Gear / Rack (1) Power Steering Wiring Harness (2) Pressure Plate / Clutch (1) Radar / Distance Sensor (2) Radiator (1) Radiator / Core Support Mount Bracket (1) Radiator Coolant Hose (5) Radiator Holding Clip / Pin / Bracket (3) Radio / Stereo (1) Radio / Stereo / Amplifier Wire / Wiring Harness (4) Rain Sensor (3) Rain Tray / Water Deflector (6) Rear Bumper Cover (1) Rear Seat (10) Rear Seat Panel / Net (3) Rear View Mirror (4) 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 (3) 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 (4) Seat Sets (1) Seat Switch (13) Seat Trim (18) Seat Wire / Wiring Harness (10) Secondary Air Pump (1) Shifter Assembly (3) Shifter Display Unit (5) Shifter Knob / Boot (4) Side Marker Lights / Reflectors (4) Side View Mirror (4) Sound Absorber (10) Sound Generator (1) Spare Tire Air Compressor (1) Spare Tire Tie Down (3) Speaker / Subwoofer (17) Speaker Grille / Cover (19) Spindle / Knuckle (11) Stabilizer / Sway / Track Bar (3) Starter (2) Steering Column (1) Steering Column Adjustment Lever / Switch (1) Steering Column Trim (4) Steering Tie Rod (4) Steering Wheel (14) Steering Wheel AirBag (1) Steering Wheel Switch / Button (12) Stone Guard (4) Storage Tray / Card / Coin Holder (8) Strut / Shock Absorber (7) Strut / Shock Mount / Bushing (8) Strut Tower Brace (2) Sub Frame Mount / Bracket (2) Sun Roof / Glass (2) Sun Roof Switch (3) Sun Visor and Components (5) Sunroof / Sun Roof Control Module (1) Sunroof / Sun Roof Motor (2) Suspension Bolt / Nut / Fastener (7) Suspension Computer / Control Module / Air Ride (2) Sway / Stabilizer Bar End Link (5) Tail Light / Lamp (1) Tail Light Bulb (1) Tail Light Wire / Wiring Harness (6) Telephone / Telematics Control Module / Computer (13) Thermostat (3) Thermostat Housing (2) Throttle Body (2) Tie Rod Boot / Bellow (5) Timing Belt / Chain Covers (2) Timing Belt / Chain Tensioner (3) Timing Belt Idler (1) Timing Chain Guide / Rail (1) Timing Gear / Pulley (2) Tools (5) Torque Converter (1) Tow / Towing Hook (2) Transfer Case / Box (1) Transmission (1) Transmission Axle Flange (3) Transmission Case / Housing (1) Transmission Cooler Line / Pipe (7) Transmission Gear Position Switch (1) Transmission Gears and Cylinders (1) Transmission Mount (3) Transmission Mount Bracket (8) Transmission Oil Cooler (3) Transmission Oil Pan (3) Transmission Screw / Bolt / Fastener (3) Transmission Tail Shaft (2) Transmission Wire / Wiring Harness (1) Trunk / Hatch Access Panel (4) Trunk / Hatch Hinge (2) Trunk / Hatch Module (4) Trunk / Hatch Stop / Adjustment (5) Trunk / Hatch Switch (2) Trunk / Hatch Trim (7) Trunk Latch (1) Trunk Latch Cover (1) Trunk Mat / Carpet Spare Cover (1) Trunk Release Switch / Handle (3) Trunk Weather Stripping / Seal (1) Turbo Mount / Bracket (2) Turbocharger (6) Turbocharger Coolant Line (2) Turbocharger Gasket (1) Turbocharger Intercooler Hose (4) Turbocharger Oil Line (3) Turbocharger Wastegate / Actuator (1) Turbocharger Wastegate / Vacuum Lines (1) USB Port / Connector (4) Underbody / Under Panel Mount Fastener (2) Underbody Panels / Skid Plate (2) Upper Control Arm (11) Upper Hood Latch (1) Upper Pillar (12) Vacuum / Crankcase Breather Hose / Line (2) Vacuum Solenoid Valve (1) Vacuum Tank / Reservoir (2) Valet Switch (2) Valve Body / Mechatronic (4) Voltage Stabilizer Module (1) Washer Hose (1) Water / Coolant Pump (9) Water Drain Hose / Line (2) Water Pump Mount Bracket (5) Wheel Bearing (7) Wheel Center Caps (4) Window Motor (8) 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 Arm (2) Wiper Motor (2) Wiper Transmission (1) Wiring Organizer / Mount Bracket (3)

Items 1-24 of 1545

Results

Brake Caliper Pin Set (2) 7N0698647A

Brake Caliper Pin Set (2)

OEM: 7N0698647A

Used Front, Left, Right

Brake Caliper Pin Set (2) 251615219

Brake Caliper Pin Set (2)

Used Left, Rear, Right

Brake Bleeder Valve 1K0615273C

Brake Bleeder Valve

OEM: 1K0615273C

Used Left, Rear, Right

Wheel Lug Bolt / Nut Set (5) WHT002438

Wheel Lug Bolt / Nut Set (5)

AC Pressure Switch / Sensor 5Q0959126A

AC Pressure Switch / Sensor

OEM: 5Q0959126A

Brake Booster Pressure Sensor 5Q0906207

Brake Booster Pressure Sensor

Brake Fluid Level Sensor 1S0611377

Brake Fluid Level Sensor

Brake Light / Stop Lamp Switch Sensor 1K0945459A

Brake Light / Stop Lamp Switch Sensor

OEM: 1K0945459A

Fuel / Gas Cap 5Q0201553A

Fuel / Gas Cap

OEM: 5Q0201553A

Multifunction Relay # 645 4H0951253A

Multifunction Relay # 645

OEM: 4H0951253A

Seat Belt Height Adjuster 4M0857819A

Seat Belt Height Adjuster

OEM: 4M0857819A

Used Front, Left, Right

14-PIN Wiring Harness Connector / Pigtail 3C0973737

14-PIN Wiring Harness Connector / Pigtail

M8X95 Hex Screw / Bolt Set (4) N91204501

M8X95 Hex Screw / Bolt Set (4)

Starting at $7.99

Throttle Body Screw / Bolt Set (4) N10626101

Throttle Body Screw / Bolt Set (4)

Hood Latch Release Cable 4H0823543

Hood Latch Release Cable

Used Only 1 left

EGR Vacuum / Purge Solenoid Valve 037906283C

EGR Vacuum / Purge Solenoid Valve

OEM: 037906283C Porsche: 95560512330

16-PIN Obd-II Diagnostic Port Connector / Pigtail 3A0972695A

16-PIN Obd-II Diagnostic Port Connector / Pigtail

OEM: 3A0972695A

Center Dash Speaker 4M0035454C

Center Dash Speaker

OEM: 4M0035454C

License Plate Light 5NA943021

License Plate Light

Starting at $10.49

OEM: 5NA943021 Porsche: 95863162011

Used Left, Rear, Right

Air Quality Sensor 4H0907658

Air Quality Sensor

CV Axle Flange Bolt / Plate Set N90097204

CV Axle Flange Bolt / Plate Set

Driveshaft Bolt w/ Retaining Plate Set N10719001

Driveshaft Bolt w/ Retaining Plate Set

LED License Plate Light 4G0943021

LED License Plate Light

Starting at $6.68

Used Left, Rear, Right

Windshield Washer Fluid Level Sensor 7M0919376

Windshield Washer Fluid Level Sensor

Starting at $5.99

OEM: 7M0919376 Porsche: 95562810500

Previous 1 2 3 … 65 Next

Popular 2021 Audi S4 Part Types

Other / Misc Wire / Wiring Harness 69 parts Door Trim 54 parts Misc Connector / Plug 42 parts Coolant Hose / Pipe / Line 33 parts Center Console Trim 27 parts Dash Trim 26 parts Front Seat 25 parts Fuse / Relay Box 25 parts Interior Light 24 parts Door Control / Door Light Unit / Module 23 parts Door Panel 21 parts Armrest / Arm Rest 20 parts Door Light 20 parts Engine Bolt / Nut / Fastener 20 parts Door Wire / Wiring Harness 19 parts Speaker Grille / Cover 19 parts Exterior Door Handle 18 parts Seat Trim 18 parts Speaker / Subwoofer 17 parts MMI Center Control Unit 16 parts Door Weather Stripping / Seal 14 parts Steering Wheel 14 parts Instrument Cluster / Speedometer 13 parts Seat Switch 13 parts

400,000+ parts shipped · 250,000+ customers served · Hundreds of 5★ Google reviews · Family-run since 2011 · Free shipping & 30-day returns Free ground shipping to the lower 48 on standard parcels over $10. Oversized freight ships at a flat rate. 30-day returns except As-Is items. If the return is our fault, the label is on us.

Company

About
Our Salvage Yard
New Arrivals
DIY Guides
Contact
Sell Your Car

Customer Service

My Account
Shipping
Returns
Privacy Policy
Terms of Service

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
Volkswagen Coolant Hose / Pipe / Line
Porsche Coolant Hose / Pipe / Line
BMW Door Trim

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

Your cart