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Audi S4 Engine Parts & Accessories

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ES#3644162 - 777521 -   Performance High Flow Catalytic Converter  - 304 Stainless high-flow front metallic catalytic converter/downpipe - 100% handcrafted in Italy! - Supersprint - Audi

304 Stainless high-flow front metallic catalytic converter/downpipe - 100% handcrafted in Italy! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3644162
Mfg#:
777521
Ships in 3 Business Days
$4867.99 USD
Free Shipping
ES#3438681 - 767702KT - Supersprint High-Flow Catalytic Converter Kit - Includes left and right side metallic high-flow sport cats and connecting pipes - Supersprint - Audi

Includes left and right side metallic high-flow sport cats and connecting pipes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3438681
Mfg#:
767702KT
Ships on Sep 23, 2026
$5914.99 USD
Free Shipping
ES#4669287 - UH029-INA - Unitronic Carbon Intake System Without Turbo Inlet  - improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. - Unitronic - Audi

improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Unitronic - Corporate Logo
ES#:
4669287
Mfg#:
UH029-INA
Ships in 5 Business Days
$1469.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4758918 - UH053-INA - 65.7mm Adapter Ring For B9 S4 / S5 3.0TFSI Turbo Inlet   - For use with UH053-INA - Unitronic - Audi

For use with UH053-INA affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Unitronic - Corporate Logo
ES#:
4758918
Mfg#:
UH053-INA
Ships in 5 Business Days
$87.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4362353 - UH017-INA - Unitronic Carbon Fiber Intake System 3.0TFSI B9 S4/S5 - Engineered for seamless integration within the engine bay and improves the performance, look and sound of your vehicle. - Unitronic - Audi

Engineered for seamless integration within the engine bay and improves the performance, look and sound of your vehicle. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Unitronic - Corporate Logo
ES#:
4362353
Mfg#:
UH017-INA
Ships in 5 Business Days
$1469.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4669284 - UH030-51-INA - Unitronic Carbon Intake System - TTE720 Turbo Inlet - improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. - Unitronic - Audi

improved throttle response, seamless integration and perfect fitment while greatly enhancing turbo induction sounds. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Unitronic - Corporate Logo
ES#:
4669284
Mfg#:
UH030-51-INA
Ships in 5 Business Days
$2085.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3176655 - 06E109257L - Camshaft Control Valve - Priced Each  - Valve that controls cam adjustment - Vaico - Audi

Valve that controls cam adjustment affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Fits up to the 2012 model year

Brand:
Vaico - Corporate Logo
ES#:
3176655
Mfg#:
06E109257L
In Stock at Vendor
$203.99

This product was last offered at the strikethrough price on
05-07-2026

$197.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2894889 - 06E905163 - Camshaft Impulse Sensor - Priced Each - Keep your engine running strong - Vemo - Audi

Keep your engine running strong affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Left side cam position sensor

Brand:
Vemo - Corporate Logo
ES#:
2894889
Mfg#:
06E905163
In Stock at Vendor
$56.99

This product was last offered at the strikethrough price on
05-07-2026

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2894739 - 058905105 - Ignition Coil - Priced Each - Includes the spark plug boot - Vemo - Audi Volkswagen

Includes the spark plug boot affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2894739
Mfg#:
058905105
In Stock at Vendor
$70.99

This product was last offered at the strikethrough price on
05-07-2026

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#9437 - 078905375 - Reference Sensor - Ignition Timing Sensor - Vemo - Audi

Ignition Timing Sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
9437
Mfg#:
078905375
In Stock at Vendor
$117.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2894741 - 058905379 - Air Temperature Sensor - Measures the temperature of the air entering the engine - Vemo - Audi Volkswagen Porsche

Measures the temperature of the air entering the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2894741
Mfg#:
058905379
In Stock at Vendor
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4857655 - 8K0906093E - Fuel Delivery Control Unit - Control unit for in tank fuel pump - Vemo - Audi

Control unit for in tank fuel pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
4857655
Mfg#:
8K0906093E
In Stock at Vendor
$352.99

This product was last offered at the strikethrough price on
05-07-2026

$342.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4852322 - 4H0959455AE - A/C Condenser Fan - Electronic fan with control unit - Located on the Right side - Vemo - Audi

Electronic fan with control unit - Located on the Right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Vemo - Corporate Logo
ES#:
4852322
Mfg#:
4H0959455AE
In Stock at Vendor
$535.99

This product was last offered at the strikethrough price on
05-07-2026

$520.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2894883 - 06E131101E - EGR Valve - Left - Also known as the 'combi valve' - Vemo - Audi Volkswagen

Also known as the 'combi valve' affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2894883
Mfg#:
06E131101E
In Stock at Vendor
$378.99

This product was last offered at the strikethrough price on
05-07-2026

$367.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4701554 - ELA-001-85 - Polyurethane Front Engine Mounts - Black (Track) - Performance engine mounts to increase drivetrain rigidity - Verkline - Audi

Performance engine mounts to increase drivetrain rigidity affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Verkline - Corporate Logo
ES#:
4701554
Mfg#:
ELA-001-85
Ships in 10 Business Days
$240.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4871996 - P201050810.BR  - Main Stud Set Burnished - Pro-Series 18.8 stud bolts. - Wagner Tuning - Audi

Pro-Series 18.8 stud bolts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wagner Tuning - Corporate Logo
ES#:
4871996
Mfg#:
P201050810.BR
Ships in 1 Business Day
$299.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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