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Audi S4 Most Popular Parts

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Carbon Fiber Rear Diffuser

ES#4000981 - D38234 - Carbon Fiber Rear Diffuser - Designed and manufactured to improve performance and everyday drivability - Deval - Audi

Designed and manufactured to improve performance and everyday drivability affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Deval - Corporate Logo
ES#:
4000981
Mfg#:
D38234
Special Order: No Guaranteed ETA
$890.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Performance Sway Bar Kit

Kit includes 32mm front & 22mm rear sway bars affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
4148346
Mfg#:
72056
Ships in 3 Business Days
$888.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Seat Backrest Trim - Sabre (Black) - Priced Each

ES#392588 - 4F0881969C1AD - Front Seat Backrest Trim - Sabre (Black) - Priced Each - Fits left and right side - Includes map net - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
392588
Mfg#:
4F0881969C1AD
Ships in 4 Business Days
7% off MSRP

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

$480.01

This product was last offered at the strikethrough price on
06-27-2026

$444.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#264172 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - Genuine Volkswagen Audi - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
264172
Mfg#:
N90316802
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Titanium Ball Seat Wheel Bolt - 14x1.5x45mm - Set Of 10

ES#3570219 - 025384ecs02-0410 - Titanium Ball Seat Wheel Bolt - 14x1.5x45mm - Set Of 10 - Lightweight, corrosion resistant, high performance lug bolts - ECS - Audi Volkswagen

Lightweight, corrosion resistant, high performance lug bolts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Extended length bolts for use with 15mm to 17.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
3570219
Mfg#:
025384ECS02-0410
In Stock
ON SALE! SAVE 15%
$208.99

This product was last offered at the strikethrough price on
06-13-2026

$177.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#6254 - N90758302 - Hex Bolt - Priced Each - Install new hardware with your new parts. M8x25 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8x25 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the front subframe brackets to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
6254
Mfg#:
N90758302
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Brake Caliper - Black - Left

ES#450975 - 8K0615403A - Rear Brake Caliper - Black - Left - Includes the parking brake motor - Genuine Volkswagen Audi - Audi

Includes the parking brake motor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450975
Mfg#:
8K0615403A
Ships in 7 Business Days
5% off MSRP

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

$932.99

This product was last offered at the strikethrough price on
06-27-2026

$885.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Floating Center Caps - Black - Priced Each

ES#4685759 - WHL00043 - APR Floating Center Caps - Black - Priced Each - Direct plug and play upgrade on APR wheels and other wheels. - APR - Audi BMW Volkswagen MINI Porsche

Direct plug and play upgrade on APR wheels and other wheels. Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4685759
Mfg#:
WHL00043
In Stock
12% off MSRP

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

$66.95

This product was last offered at the strikethrough price on
06-27-2026

$58.95 USD
Free Shipping

Ignition Service Kit

ES#2532304 - 077905115TKT2 - Ignition Service Kit - Includes eight red genuine coil packs and spark plugs - Genuine Volkswagen Audi - Audi

Includes eight red genuine coil packs and spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2532304
Mfg#:
077905115TKT2
Ships in 1-2 days
ON SALE!
$926.99

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

$883.97 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Expansion Tank Cap

ES#4858532 - 2Q0121321A - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Bremmen Parts - Audi Volkswagen Porsche

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4858532
Mfg#:
2Q0121321A
In Stock
ON SALE! SAVE 22%
$19.99

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

$15.50 USD
Free Shipping
on orders $49 and up

Front Brake Caliper (Black) - Left

Restore Stopping Power affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3580075
Mfg#:
8W0615107AE
Ships in 7 Business Days
5% off MSRP

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

$930.99

This product was last offered at the strikethrough price on
06-27-2026

$882.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" Style 349 Wheels - Set Of Four

ES#2713036 - 349A-8 - 18" Style 349 Wheels - Set Of Four - 18"x8" ET35 5x112 - Matte Black - Alzor - Audi Volkswagen

18"x8" ET35 5x112 - Matte Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2713036
Mfg#:
349A-8
In Stock
ON SALE! SAVE 25%
$1176.99

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

$882.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" Style 349 Wheels - Set Of Four

ES#2739385 - 349A-15kt - 18" Style 349 Wheels - Set Of Four - 18x9 ET35 5x112 57.1CB - Matte Black - Alzor - Audi Volkswagen

18x9 ET35 5x112 57.1CB - Matte Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2739385
Mfg#:
349A-15KT
Ships on Nov 27, 2026
Auto Notify
ON SALE! SAVE 25%
$1176.99

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

$882.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#4620705 - G055190A2-1KT - Rear Differential Service Kit - Complete kit with Genuine fluids and magnetic drain plugs to service your rear differential. - Assembled By ECS - Audi

Complete kit with Genuine fluids and magnetic drain plugs to service your rear differential. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
for vehicles without sport diff

Brand:
Assembled By ECS - Corporate Logo
ES#:
4620705
Mfg#:
G055190A2-1KT
In Stock
$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Ignition Coil Wiring Cover - Right

ES#281065 - 06E971822D - Ignition Coil Wiring Cover - Right - Wire cover for ignition coil wires 1-3 - Genuine Volkswagen Audi - Audi

Wire cover for ignition coil wires 1-3 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281065
Mfg#:
06E971822D
Ships in 9 Business Days
7% off MSRP

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

$44.99

This product was last offered at the strikethrough price on
06-27-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm - Curved - Left

ES#780 - 8E0407693AG - Front Lower Control Arm - Curved - Left - Keep your suspension steady - Febi - Audi Volkswagen

Keep your suspension steady 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:
Febi - Corporate Logo
ES#:
780
Mfg#:
8E0407693AG
Ships in 2 Business Days
$128.99

This product was last offered at the strikethrough price on
02-23-2026

$110.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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