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.
Saleri
Audi A6, A7, A8, Q5, S4, S5 & More 2011-2017 Water Pump - Saleri 06E121018K
Sale price$142.00
Regular price$184.56
Saleri
Audi Q7, A6, A4, S4, S5, Volkswagen Touareg 2005-2015 Water Pump - Saleri 06E121018D
Sale price$67.00
Regular price$85.82
Sachs
Audi A5, A4, S4, S5 2008-2013 Clutch Slave Cylinder - Sachs 8K0721257A
Sale price$41.00
Regular price$52.42
Sachs
Audi S4 2004-2009 Clutch Slave Cylinder - Sachs 8E0721257Q
Sale price$73.00
Regular price$94.30
Sachs
Audi A4, A6, Allroad, S4, S6, Volkswagen Passat & More 1997-2008 Clutch Slave Cylinder - Sachs 8E0721257M
Sale price$48.00
Regular price$61.30
Sachs
Audi A4, A6, 100, 90, 80, S4 & More Clutch Release Bearing - Sachs 01E141165D
Sale price$32.00
Regular price$40.64
Sachs
Audi A4, A6, 100, 90, 80, S4 & More Clutch Release Bearing - Sachs 01E141165D
Sale price$32.00
Regular price$40.64
Sachs
Audi A4, A5, S5, S4 2017-2024 Shock Absorber - Sachs 8W0413031BG
Sale price$221.00
Regular price$287.16
Rein Automotive
Audi A4, A6, TT, 5000, 4000, A3 & More Lug Bolt - Rein Automotive WHT002437
Sale price$4.00
Regular price$5.16
Rein Automotive
Volkswagen Jetta, Passat, Beetle, Golf, GTI, Touareg & More 1998-2018 Engine Oil Drain Plug - Rein Automotive N90813202
Sale price$2.00
Regular price$2.28
Rein Automotive
Audi A3, A5, TT, A6, Q3, Q5 & More Coolant Pipe - Rein Automotive N90692901
Sale price$14.00
Regular price$16.94
Rein Automotive
Audi A4, Allroad, S4, RS4, S6, Volkswagen Passat 1996-2011 Bolt - Rein Automotive N90625902
Sale price$6.00
Regular price$7.38
Rein Automotive
Audi A6, A8, Q7, A7, Q5, S4 & More 2009-2017 Thermostat - Rein Automotive 06E121111AL
Sale price$71.00
Regular price$92.14
Rein Automotive
Volkswagen Jetta, Passat, Golf, GTI, Beetle, Touareg & More Expansion Tank Cap - Rein Automotive 3B0121321
Sale price$12.00
Regular price$15.26
Rein Automotive
Audi Q5, A6, A7, S4, S5, SQ5 & More 2011-2017 Coolant Pipe - Rein Automotive 06E121045BB
Sale price$115.00
Regular price$149.34
Rein Automotive
Audi A4, A6, A3, Q7, S5, A5 & More 2000-2018 Temperature Sensor - Rein Automotive 8Z0820535
Sale price$13.00
Regular price$16.18
Rein Automotive
Audi RS5, S5, S4 2018-2024 Coolant Expansion Tank - Rein Automotive 8W1121405N
Sale price$139.00
Regular price$179.54
Rein Automotive
Audi Q5, A5, S4, S5, SQ5 2008-2017 Coolant Expansion Tank - Rein Automotive 8K0121405S
Sale price$59.00
Regular price$75.46
Rein Automotive
Audi A4, A5, S4, S5 2008-2016 Radiator Hose - Rein Automotive 8K0121101J
Sale price$45.00
Regular price$57.36
Rein Automotive
Audi A4, A5, S4, S5 2008-2016 Water Hose - Rein Automotive 8K0121055B
Sale price$94.00
Regular price$121.68
Rein Automotive
Audi A4, A6, Allroad, S4 2002-2011 Engine Mount - Rein Automotive 8E0199339
Sale price$8.00
Regular price$9.38
Rein Automotive
Audi S4 2004-2009 Radiator Hose - Rein Automotive 8E0121070B
Sale price$155.00
Regular price$200.48
Rein Automotive
Porsche Macan, Audi RS5, S4, S5, S6, S7 2010-2025 Transmission Filter Kit - Rein Automotive 558600030
Sale price$111.00
Regular price$143.20
Rein Automotive
Volkswagen Jetta, Passat, Golf, GTI, Beetle, Touareg & More Expansion Tank Cap - Rein Automotive 3B0121321
Sale price$12.00
Regular price$15.26
Rein Automotive
Audi A6, A8, Allroad, S4, S8, Volkswagen Passat & More 2000-2009 Crankcase Vent Valve - Rein Automotive 077103245B
Sale price$34.00
Regular price$43.12
Rein Automotive
Audi A6, A8, Q7, A7, Q5, S4 & More 2009-2017 Thermostat - Rein Automotive 06E121111AL
Sale price$71.00
Regular price$92.14
Rein Automotive
Audi A6, Q5, A4, A7, Q7, A5 & More 2005-2017 Water Hose - Rein Automotive 06E121058E
Sale price$14.00
Regular price$18.16
Rein Automotive
Audi Q7, S4, S5 2010-2015 Coolant Pipe - Rein Automotive 06E121045BD
Sale price$131.00
Regular price$169.04
Rein Automotive
Audi Q5, A6, A7, S4, S5, SQ5 & More 2011-2017 Coolant Pipe - Rein Automotive 06E121045BB
Sale price$115.00
Regular price$149.34
Rein Automotive
Audi A6, A4, Q7, A5, Q5, S4 & More 2005-2015 Coolant Pipe Assembly - Rein Automotive 06E121044AF
Sale price$66.00
Regular price$85.52
Rein Automotive
Audi A6, A7, Q5, A8, S4, S5 & More 2012-2017 Coolant Pipe Assembly - Rein Automotive 06E121044AE
Sale price$63.00
Regular price$81.28
Rein Automotive
Audi A6, A7, Q5, Q7, A8, A4 & More 2008-2017 Engine Oil Pan - Rein Automotive 06E103604K
Sale price$88.00
Regular price$113.92
Rein Automotive
Volkswagen Jetta, Passat, Beetle, GTI, Touareg, Golf & More 1998-2017 Oil Pressure Switch - Rein Automotive 06A919081J
Sale price$12.00
Regular price$15.18
Rein Automotive
Volkswagen Passat, Beetle, Jetta, GTI, Golf, Audi A6 & More 1997-2009 Suction Pump - Rein Automotive 058133753D
Sale price$23.00
Regular price$29.50
Rein Automotive
Volkswagen Jetta, Golf, Vanagon, Cabrio, Corrado, EuroVan & More 1980-1999 Oil Pressure Switch - Rein Automotive 056919081
Sale price$6.00
Regular price$7.12
Redi-Sensor
Audi A4, A3, Q5, A5, TT, S5 & More 2001-2017 TPMS Sensor - Redi-Sensor SE10003
Sale price$58.00
Regular price$75.22
Redi-Sensor
Audi A4, A3, Q5, A5, TT, S4 & More 2005-2017 Valve Stem Service Kit - Redi-Sensor 1K0998275
Sale price$12.00
Regular price$14.48
Purflux
Audi A6, A7, A8, RS5, S5, SQ5 & More 2018-2025 Oil Filter - Purflux 06M198405H
Sale price$15.00
Regular price$18.54
Purflux
Audi A6, A7, A8, RS5, S5, SQ5 & More 2018-2025 Oil Filter - Purflux 06M198405H
Sale price$15.00
Regular price$18.54
Pierburg
Audi A6, A7, A8, Q7, S4, S5 2010-2018 Auxiliary Water Pump - Pierburg 8K0965569
Sale price$579.00
Regular price$752.12
Pierburg
Audi A6, A7, Q5, S5, A4, A5 & More 2008-2016 Pump - Pierburg 079959231L
Sale price$660.00
Regular price$857.10
Pierburg
Audi RS4, S4 2004-2009 Secondary Air Pump - Pierburg 079906601E
Sale price$765.00
Regular price$993.94
Pierburg
Audi A6, A7, Q7, S4, S5, A8 & More 2004-2017 EGR Vacuum Solenoid - Pierburg 079906283D
Sale price$72.00
Regular price$92.58
Pierburg
Audi A6, A4, Allroad, S4, A8, S6 & More 1998-2009 Air Pump Check Valve - Pierburg 078131102T
Sale price$141.00
Regular price$183.08
Pierburg
Audi A6, RS5, S5, SQ5, A7, A8 & More 2018-2025 Water Pump - Pierburg 06M121013G
Sale price$231.00
Regular price$299.06
Pierburg
Audi Q5, A4, A5, A6, SQ5, A7 & More 2013-2025 Auxiliary Water Pump - Pierburg 06H121601N
Sale price$161.00
Regular price$208.32
Pierburg
Audi RS5, S5, S4, S6, S7 2018-2024 Auxiliary Water Pump - Pierburg 06H121601M
Sale price$117.00
Regular price$151.28
Pierburg
Audi A6, A7, Q5, Q7, A4, A5 & More 2008-2017 Vacuum Pump - Pierburg 06E145100AA
Sale price$300.00
Regular price$389.88
