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Audi S4 Most Popular Parts

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ES#2972481 - 11-10121 - MagnumFLOW Pro-Dry Air Filter - Oil free dry synthetic media, allowing significant airflow over stock paper media - AFE - Audi

Oil free dry synthetic media, allowing significant airflow over stock paper media affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
2972481
Mfg#:
11-10121
In Stock
ON SALE! SAVE 19%
$98.99

This product was last offered at the strikethrough price on
04-09-2026

$79.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#259237 - 4D0407151P -    Front Lower Control Arm - Straight - Priced Each - Fits the left and right side - Genuine Volkswagen Audi - Audi Volkswagen

Fits the left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
259237
Mfg#:
4D0407151P
Ships in 3 Business Days
8% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$358.99

This product was last offered at the strikethrough price on
06-29-2026

$328.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#302264 - 1H0121687A - Expansion Tank Cap Seal - Seals the expansion tank cap to the reservoir. 28.5x3.8 - Genuine Volkswagen Audi - Audi Volkswagen

Seals the expansion tank cap to the reservoir. 28.5x3.8 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
302264
Mfg#:
1H0121687A
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4877145 - 034B8/8.5TUNE - B8 Audi S4/S5/SQ5/Q5 3.0T Dynamic+ Performance Software Package - Unleash up to 540HP/491TQ by transforming your Audi EA837 3.0T with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! - 034Motorsport - Audi

Unleash up to 540HP/491TQ by transforming your Audi EA837 3.0T with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4877145
Mfg#:
034B8/8.5TUNE
EO#:
D-850
Ships in 1 Business Day
ON SALE!
Starting at $162.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#3648485 - 8k1863821KT - Belly Pan & Installation Hardware Kit - Includes a replacement belly pan with all necessary mounting hardware - Assembled By ECS - Audi

Includes a replacement belly pan with all necessary mounting hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits from the 2013 year model

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648485
Mfg#:
8K1863821KT
Ships in 1 day
$656.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3658432 - 8k1863821kt2KT - Front Belly Pan & Installation Kit - Reduces noise and protects your undercarriage - includes installation hardware - Genuine Volkswagen Audi - Audi

Reduces noise and protects your undercarriage - includes installation hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3658432
Mfg#:
8K1863821KT2KT
Ships in 1 day
$656.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2832703 - 8K0839015G - Rear Door Latch Assembly - Left - Common repair for issues with intermittent alarm problems & door locking - Genuine Volkswagen Audi - Audi

Common repair for issues with intermittent alarm problems & door locking affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 11/3/2009

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2832703
Mfg#:
8K0839015G
Ships in 1 day
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$716.99

This product was last offered at the strikethrough price on
06-29-2026

$655.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2723997 - 077198025B - Valve Cover Gasket Set - Right - For cylinders 1-4 - Elring - Audi

For cylinders 1-4 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2723997
Mfg#:
077198025B
In Stock
$53.99

This product was last offered at the strikethrough price on
06-05-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2561477 - 4A0407643A - Drive Axle Shoulder Bolt - Priced Each - Secures the axle assembly in the hub. M16X1.5X77 - Rein - Audi Volkswagen

Secures the axle assembly in the hub. M16X1.5X77 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits up to VIN 8D-1-050 000 - Split is in the 2001 model year

Brand:
Rein - Corporate Logo
ES#:
2561477
Mfg#:
4A0407643A
In Stock
ON SALE!
$15.99

This product was last offered at the strikethrough price on
06-29-2026

$15.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3184289 - 8E0615301TKT99 - Front & Rear Premuim Brake Service Kit - Featuring Brembo rotors and ECS DD23 Ceramic brake pads - Assembled By ECS - Audi

Featuring Brembo rotors and ECS DD23 Ceramic brake pads affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3184289
Mfg#:
8E0615301TKT99
Ships on Jul 30, 2026
ON SALE!
$680.99

This product was last offered at the strikethrough price on
05-02-2026

$655.41 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4907820 - B6-3 - Jackal Motorsports Tune - Includes Jackal Tuning Cable & TCU Tune - Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 - Jackal Motorsports - Audi

Gains from 20-30 WHP on Stage 1 up to 60-70 WHP on Stage 3+ E85 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Jackal Motorsports - Corporate Logo
ES#:
4907820
Mfg#:
B6-3
Ships in 1 Business Day
$655.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3181978 - 06M906048F - Engine Variable Valve Timing (VVT) Solenoid - Solenoid to adjust camshaft Timing - Genuine Volkswagen Audi - Audi

Solenoid to adjust camshaft Timing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181978
Mfg#:
06M906048F
Ships in 1 day
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$139.99

This product was last offered at the strikethrough price on
06-29-2026

$130.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#7688 - 17053 - Front Oxygen Sensor - Priced Each - Restore fuel mileage and clear codes - Bosch - Audi Volkswagen

Restore fuel mileage and clear codes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits left and right position

Brand:
Bosch - Corporate Logo
ES#:
7688
Mfg#:
17053
In Stock at Vendor
$281.99

This product was last offered at the strikethrough price on
02-21-2026

$217.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1597683 - 8D0805960 - Speed Nut - Priced Each - Fits silver colored screws with attached washers - Genuine Volkswagen Audi - Audi Volkswagen

Fits silver colored screws with attached washers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used in securing the belly pan to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1597683
Mfg#:
8D0805960
In Stock
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$9.62

This product was last offered at the strikethrough price on
06-29-2026

$9.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2593820 - 079121111JKT3 - Cooling System Refresh Kit - Service your critical cooling system components with this complete kit. - Assembled By ECS - Audi

Service your critical cooling system components with this complete kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes thermostat with housing.

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593820
Mfg#:
079121111JKT3
In Stock at Vendor
$673.99

This product was last offered at the strikethrough price on
01-26-2026

$652.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#5457611 - 034-103-3400 - 034SPI Boot Loader Unlock (BLU) Harness For AL552/AL952 Transmissions - Unlock your 2022+ Audi AL552 TCU with the 401 boot loader from the comfort of your home. - 034Motorsport - Audi

Unlock your 2022+ Audi AL552 TCU with the 401 boot loader from the comfort of your home. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
5457611
Mfg#:
034-103-3400
Ships in 1-3 days
ON SALE! SAVE 10%
$145.00

This product was last offered at the strikethrough price on
06-28-2026

$130.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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