Shop replacement parts for the Audi S4 from trusted genuine, OEM, original-equipment, and aftermarket brands. Our selection supports multiple S4 configurations, including the S4 Cabriolet, S4 Avant, and S4 Base, helping you maintain performance, safety, and reliability on the road. Find quality Audi S4 parts designed to meet or exceed original specifications, with options for routine maintenance, repairs, and restoration. Whether you own an earlier model or a newer S4, use the Compatible Vehicles table on each product page to confirm fitment for your exact model year, engine, and application. Order confidently with convenient access to dependable replacement parts for your Audi S4.
Hella
BMW 3 Series, 2 Series, 5 Series, X1, Z8, M5 & More Bulb - Hella H6W
Sale price$5.00
Regular price$6.36
Hella
BMW 3 Series, X5, 5 Series, X3, Z4, X6 & More Bulb - Hella H11
Sale price$13.00
Regular price$15.62
Hella
Audi A4, A6, A3, A8, Q5, Q7 & More 2008-2020 Bulb - Hella D3S
Sale price$127.00
Regular price$164.00
Hella
Mercedes-Benz C-Class, SL-Class, E-Class, CLK-Class, S-Class, M-Class & More 1995-2013 Bulb - Hella D2S
Sale price$59.00
Regular price$75.94
Hella
BMW 3 Series, 5 Series, 7 Series, 8 Series, M3, Z3 & More Bulb - Hella 9006
Sale price$6.00
Regular price$7.80
Hella
Audi A8, A3, A4, A6, Q5, A5 & More 2008-2017 Igniter - Hella 8K0941597E
Sale price$268.00
Regular price$347.78
Hella
Audi A4, A6, Allroad, S4 1996-2002 Turn Signal Light - Hella 4B0949127A
Sale price$26.00
Regular price$33.32
Hella
Volkswagen Jetta, Golf, Passat, GTI, Cabrio, Mercedes-Benz E-Class & More Bulb - Hella 3457A
Sale price$4.00
Regular price$4.20
Hella
Mercedes-Benz C-Class, CLK-Class, E-Class, S-Class, M-Class, SL-Class & More Bulb - Hella 2357A
Sale price$3.00
Regular price$3.24
Hella
Volkswagen Jetta, Golf, GTI, Passat, Touareg, R32 & More 1998-2018 Bulb - Hella 194NA
Sale price$1.00
Regular price$1.04
Hella
Volkswagen Jetta, Touareg, Passat, Beetle, Golf, Eos & More Temperature Switch - Hella 05C919501
Sale price$15.00
Regular price$18.46
Hella
Audi A6, Q7, Q5, S4, S5, SQ5 & More 2011-2015 Oil Level Sensor - Hella 03C907660S
Sale price$86.00
Regular price$111.32
Hella
Audi A4, A5, Q5, Q7, S4, A6 & More 2008-2015 Engine Oil Level Sensor - Hella 03C907660H
Sale price$93.00
Regular price$120.22
Hella
Audi Coupe, 200, V8, 4000, S4, S6 & More 1984-1995 Temperature Sensor - Hella 035919369M
Sale price$17.00
Regular price$21.26
Hella
Audi A6, Q7, Q5, S4, S5, SQ5 & More 2011-2015 Oil Level Sensor - Hella 03C907660S
Sale price$86.00
Regular price$111.32
Hella
Volkswagen Jetta, Touareg, Passat, Beetle, Golf, Eos & More Temperature Switch - Hella 05C919501
Sale price$15.00
Regular price$18.46
Hella
Audi Coupe, 200, V8, 4000, S4, S6 & More 1984-1995 Temperature Sensor - Hella 035919369M
Sale price$17.00
Regular price$21.26
Hazet
Audi A6, A4, A3, TT, A5, Q5 & More Cylinder Head Bolt Socket - Hazet 25799
Sale price$53.00
Regular price$68.60
Graf
Audi A6, RS5, S5, SQ5, A7, A8 & More 2018-2025 Water Pump - Graf 06M121013D
Sale price$260.00
Regular price$337.20
Graf
Audi A6, Allroad, S4 2004-2009 Water Pump - Graf 079121014D
Sale price$81.00
Regular price$104.74
Graf
Audi A6, TT, Allroad, S4, Volkswagen Jetta, GTI & More 2000-2006 Auxiliary Water Pump - Graf 078965561
Sale price$110.00
Regular price$141.94
Graf
Audi A6, Allroad, S4 2000-2005 Water Pump - Graf 078121006A
Sale price$61.00
Regular price$78.92
Graf
Audi Q7, A6, A4, S4, S5, Volkswagen Touareg 2005-2015 Water Pump - Graf 06E121018D
Sale price$57.00
Regular price$73.76
Goetze
Volkswagen Golf, Jetta, GTI, Cabrio, Corrado, Audi 5000 & More 1985-1995 Piston Ring Set - Goetze 026198151A
Sale price$28.00
Regular price$35.96
GKN Loebro
Audi A4, A5, S5, S4 2017-2025 Axle Shaft Assembly - GKN Loebro 8W0407271M
Sale price$630.00
Regular price$818.52
GKN Loebro
Audi A4, A5, S4, S5, Q5 2009-2012 Axle Boot Kit - GKN Loebro 8K0498203
Sale price$41.00
Regular price$52.86
GKN Loebro
Audi A6, Q5, A8, A7, A4, S5 & More 2008-2020 Axle Boot Kit - GKN Loebro 8K0498201B
Sale price$48.00
Regular price$61.34
GKN Loebro
Audi Q5, A6, A8, A4, A7, S5 & More 2011-2018 CV Joint Kit - GKN Loebro 8K0498099F
Sale price$405.00
Regular price$525.92
GKN Loebro
Audi A4, A5, RS5, S5, S4 2009-2017 Axle Shaft Assembly - GKN Loebro 8K0407271AJ
Sale price$617.00
Regular price$801.98
GKN Loebro
Audi A4, RS4, S4 2004-2009 Axle Boot Kit - GKN Loebro 8E0498203C
Sale price$31.00
Regular price$39.82
GKN Loebro
Audi A4, RS4, S4 2004-2009 Axle Shaft Assembly - GKN Loebro 8E0407272AT
Sale price$570.00
Regular price$739.82
GKN Loebro
Audi A4, RS4, S4 2004-2009 Axle Shaft Assembly - GKN Loebro 8E0407271AT
Sale price$614.00
Regular price$797.48
GKN Loebro
Audi A4, 90, S4 1993-2002 Axle Boot Kit - GKN Loebro 893498203F
Sale price$22.00
Regular price$28.10
GKN Loebro
Audi A8, A6, S5, A4, A7, Q7 & More 2011-2025 CV Joint Boot Kit - GKN Loebro 7E0498203C
Sale price$32.00
Regular price$40.86
GKN Loebro
Audi A4, A6, A8, RS4, S4, Volkswagen Beetle 2003-2011 Axle Boot Kit - GKN Loebro 4E0498201
Sale price$25.00
Regular price$32.28
GKN Loebro
Audi A6, A4, A8, Allroad, S4, S6 & More 1996-2005 Axle Joint Kit - GKN Loebro 4D0498099A
Sale price$115.00
Regular price$148.86
GKN Loebro
Volkswagen Passat, Jetta, Golf, Cabrio, Audi A4, A6 & More 1993-2005 Axle Boot Kit - GKN Loebro 4B0498201
Sale price$24.00
Regular price$30.04
GKN Loebro
Audi 5000, A6, 100, S4, 200, S6 & More Axle Boot Kit - GKN Loebro 443498201B
Sale price$30.00
Regular price$38.30
GKN Loebro
Audi A6, A4, 100, A8, Allroad, S4 & More 1990-2005 Axle Boot Kit - GKN Loebro 3B0498203F
Sale price$21.00
Regular price$26.68
GKN Loebro
Volkswagen Passat, Jetta, Golf, Cabrio, Audi A4, A6 & More 1993-2005 Axle Boot Kit - GKN Loebro 4B0498201
Sale price$24.00
Regular price$30.04
Genuine VW/Audi
Audi RS5, S4, S5, S6 2011-2018 Transmission Filter Seal - Genuine VW/Audi WHT005499A
Sale price$7.00
Regular price$8.90
Genuine VW/Audi
Audi A6, A4, Q5, A7, A8, Q7 & More 2004-2018 Bolt - Genuine VW/Audi N91052201
Sale price$3.00
Regular price$3.08
Genuine VW/Audi
Audi A4, A5, A6, A7, A8, Q5 & More 2017-2025 Engine Mount Bolt - Genuine VW/Audi N90696702
Sale price$11.00
Regular price$13.30
Genuine VW/Audi
Audi e-tron, A6, Q5, TT, A3, A4 & More 2019-2025 Coolant / Antifreeze - Genuine VW/Audi G12E0501GRTU
Sale price$40.00
Regular price$51.50
Genuine VW/Audi
Volkswagen Jetta, Passat, Golf, GTI, Beetle, Touareg & More Expansion Tank Cap - Genuine VW/Audi 3B0121321
Sale price$43.00
Regular price$55.02
Genuine VW/Audi
Audi A6, A4, A8, A3, TT, Q5 & More Lug Bolt Cap - Genuine VW/Audi 321601173AZ37
Sale price$6.00
Regular price$7.42
