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Audi A4 Engine Parts & Accessories

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Remanufactured Alternator - 120 Amps

ES#2523995 - 06B903018EXBOSKI - Remanufactured Alternator - 120 Amps - Includes a $70 refundable core charge - Bosch - Audi Volkswagen

Includes a $70 refundable core charge 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Please check current alternator for correct amps

Brand:
Bosch - Corporate Logo
ES#:
2523995
Mfg#:
06B903018EXBOSKI
Back Ordered
$446.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 90 Amps

ES#259920 - al0725xKt - Remanufactured Alternator - 90 Amps - Includes a $78 refundable core charge - Bosch - Audi Volkswagen

Includes a $78 refundable core charge 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For cars with Bosch style 90 amp alternators. Please check current part number before ordering.

Brand:
Bosch - Corporate Logo
ES#:
259920
Mfg#:
AL0725XKT
Back Ordered
$380.99

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

$372.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Starter

ES#2712870 - 078911023DXKT2 - Remanufactured Starter - Price includes a $39.00 refundable core charge - Bosch - Audi Volkswagen

Price includes a $39.00 refundable core charge 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2712870
Mfg#:
078911023DXKT2
Back Ordered
$334.73

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

$326.28 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Washer - Priced Each

ES#4940359 - N01152527 - Washer - Priced Each - Install new hardware with your new parts. 8.4x16x1.6 - Bremmen Parts - Audi Volkswagen

Install new hardware with your new parts. 8.4x16x1.6 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940359
Mfg#:
N01152527
Special Order: No Guaranteed ETA
Auto Notify
ON SALE! SAVE 46%
$2.99

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

$1.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Sport Transmission Mount – 50 Durometer

ES#4830808 - CTS-TM-AUDI4-50D - Street Sport Transmission Mount 50 Durometer - A significant upgrade to performance and feel over the stock mount. - CTS - Audi

A significant upgrade to performance and feel over the stock mount. Early B6 A4 w/ 5-Speed Manual Transmissions only.

Brand:
CTS - Corporate Logo
ES#:
4830808
Mfg#:
CTS-TM-AUDI4-50D
Special Order: No Guaranteed ETA
$84.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Intake Manifold With Port Injection

ES#4819281 - CTS-HW-0420RFUEL - CTS Turbo Intake Manifold With Port Injection - Increase Air and Fuel Flow with this CTS Kit! - CTS - Audi Volkswagen

Increase Air and Fuel Flow with this CTS Kit!

Brand:
CTS - Corporate Logo
ES#:
4819281
Mfg#:
CTS-HW-0420RFUEL
Special Order: No Guaranteed ETA
ON SALE! SAVE 10%
$989.99

This product was last offered at the strikethrough price on
07-10-2026

$890.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo B8/B8.5 2.0T Direct Fit FMIC Kit

ES#4819059 - CTS-B8-DFADS - CTS Turbo B8/B8.5 2.0T Direct Fit FMIC Kit - Includes ADS System Oil Cooler - CTS - Audi

Includes ADS System Oil Cooler

Brand:
CTS - Corporate Logo
ES#:
4819059
Mfg#:
CTS-B8-DFADS
Special Order: No Guaranteed ETA
$749.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch (87-93°C) - 3 Pin

ES#3625382 - 251959481K - Auxiliary Fan Switch (87-93C) - 3 Pin - Located on the lower side of the radiator, comes with paper gasket - FAE - Audi Volkswagen

Located on the lower side of the radiator, comes with paper gasket

Brand:
FAE - Corporate Logo
ES#:
3625382
Mfg#:
251959481K
Back Ordered
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#2866287 - 06E121005G - Water Pump - Includes gasket and features a metal impeller - Febi - Audi

Includes gasket and features a metal impeller 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For models with CALA Engine Code Only

Brand:
Febi - Corporate Logo
ES#:
2866287
Mfg#:
06E121005G
Special Order: No Guaranteed ETA
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley

ES#2866288 - 06E903119Q - Alternator Pulley - Does not include securing hardware - Febi - Audi

Does not include securing hardware 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2866288
Mfg#:
06E903119Q
Special Order: No Guaranteed ETA
$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rebuilt Fuel Injector - Priced Each

ES#2718713 - 078133551BA - Rebuilt Fuel Injector - Priced Each - Price includes $9 refundable core charge - GB Remanufacturing - Audi Volkswagen

Price includes $9 refundable core charge

Brand:
GB Remanufacturing - Corporate Logo
ES#:
2718713
Mfg#:
078133551BA
Back Ordered
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JE Pistons 9.25:1 Kit Set Of 4 Pistons

ES#4810539 - 295743 - JE Pistons 9.25:1 Kit Set Of 4 Pistons - Equip your engine with the best-forged pistons. - JE Piston - Audi

Equip your engine with the best-forged pistons.

Brand:
JE Piston - Corporate Logo
ES#:
4810539
Mfg#:
295743
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#3559529 - 8E0201511J - Fuel Filter - With pressure regulator - Kolbenschmidt - Audi

With pressure regulator From VIN 8E-4-0000010 up to VIN 8E-5-065000, splits are in the 2004 & 2005 model years

Brand:
Kolbenschmidt - Corporate Logo
ES#:
3559529
Mfg#:
8E0201511J
Back Ordered
$48.99

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

$47.99 USD
Free Shipping
on orders $49 and up

Mahle Performance Piston Set

ES#2794055 - H18TAUD287209I12 - Mahle Performance Piston Set - Includes rings, wire locks, and wrist pins - 81.5mm bore, 8.5:1 CR, 86.4mm stroke (stock) - Mahle - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81.5mm bore, 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
Mahle - Corporate Logo
ES#:
2794055
Mfg#:
H18TAUD287209I12
Back Ordered
$955.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount Kit - Pair

ES#3647113 - 8R0198381C - Engine Mount Kit - Pair - Keep your drivetrain in top shape with new engine mounts - Meyle - Audi

Keep your drivetrain in top shape with new engine mounts 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
CVT transmission vehicles up to the 2012 model year

Brand:
Meyle - Corporate Logo
ES#:
3647113
Mfg#:
8R0198381C
Special Order: No Guaranteed ETA
$273.99 USD
Free Shipping
on orders $49 and up

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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