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Audi B6 A4 FWD 1.8T

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Audi B6 A4 FWD 1.8T Engine Parts & Accessories

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Alternator - 150amp

ES#2725353 - 06B903016QX - Alternator - 150amp - New alternator with no core charge - Valeo - Audi

New alternator with no core charge We Price Match - Give Us A Call or Chat!

Brand:
Valeo - Corporate Logo
ES#:
2725353
Mfg#:
06B903016QX
Ships on Oct 9, 2026
$389.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve - Polished

ES#2917784 - DV25 - Diverter Valve - Polished - Keep your turbo boosting like it should - Euro Sport Acc - Audi Volkswagen

Keep your turbo boosting like it should

Brand:
Euro Sport Acc - Corporate Logo
ES#:
2917784
Mfg#:
DV25
Ships in 3 Business Days
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Gasket

ES#271042 - 028129748 - Throttle Body Gasket - Seals the throttle body to the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Seals the throttle body to the intake manifold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271042
Mfg#:
028129748
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.

$16.99

This product was last offered at the strikethrough price on
09-19-2026

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 1

Average gain of 38 horsepower and 69 lb-ft of torque on 91 Octane @ 18 PSI

Brand:
Tunezilla - Corporate Logo
ES#:
3097325
Mfg#:
18T-20V-170-1
Ships in 7 Business Days
$389.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Matched Set Of 4 Injectors - 650cc

ES#5447901 - 17U-01-0650-4 - Matched Set Of 4 Injectors - 650cc - E85 Compatible - DeatschWerks - Audi Volkswagen MINI

E85 Compatible Requires tuning and/or additional hardware.

Brand:
DeatschWerks - Corporate Logo
ES#:
5447901
Mfg#:
17U-01-0650-4
Back Ordered
$389.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Gasket

ES#277551 - 058103383Q - Cylinder Head Gasket - Stop leaks and restore engine power - Genuine Volkswagen Audi - Audi Volkswagen

Stop leaks and restore engine power

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277551
Mfg#:
058103383Q
Ships in 10 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.

$208.99

This product was last offered at the strikethrough price on
08-31-2026

$193.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Crankcase Breather Hose Kit

ES#2966347 - 06A198298kt - Performance Crankcase Breather Hose Kit - Includes the "L" & "T" shaped breather hoses, 034 Billet check valve, and tube with hardware - Assembled By ECS - Audi

Includes the "L" & "T" shaped breather hoses, 034 Billet check valve, and tube with hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966347
Mfg#:
06A198298KT
In Stock
ON SALE!
$102.99

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

$96.97 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#3438073 - 06B903137D - Accessory Belt - Replace your cracked or worn belt - Mitsuboshi - Audi

Replace your cracked or worn belt Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
Mitsuboshi - Corporate Logo
ES#:
3438073
Mfg#:
06B903137D
In Stock
$35.99

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

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Connector Housing - Female Connector

ES#4303 - 1J0973775A - Mass Air Flow Connector Housing - Female Connector - Contact housing for the MAF sensor - Genuine Volkswagen Audi - Audi Volkswagen

Contact housing for the MAF sensor

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4303
Mfg#:
1J0973775A
In Stock
25% off MSRP

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

$15.99

This product was last offered at the strikethrough price on
08-12-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Plus Timing Belt Kit - With Gates Racing Timing Belt

ES#2569783 - 06B198502KT - Ultimate Plus Timing Belt Kit - With Gates Racing Timing Belt - Looking for the best timing belt kit on the market? Look no further than ECS Tuning - Assembled By ECS - Audi

Looking for the best timing belt kit on the market? Look no further than ECS Tuning 10X Entries Into Our F80 M3 Sweepstakes
From VIN 8E-4-191001, split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2569783
Mfg#:
06B198502KT
In Stock
ON SALE! SAVE 13%
$439.99

This product was last offered at the strikethrough price on
03-24-2026

$380.82 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Check Valve - Priced Each

ES#4818424 - 058905291K - Check Valve - Priced Each - Used in multiple locations in the vacuum system - Bremmen Parts - Audi Volkswagen

Used in multiple locations in the vacuum system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818424
Mfg#:
058905291K
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Speed Nut - Priced Each

ES#2818853 - N90708803 - Speed Nut - Priced Each - Located in various places, including heat shields - Genuine Volkswagen Audi - Audi Volkswagen

Located in various places, including heat shields

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2818853
Mfg#:
N90708803
In Stock
44% off MSRP

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

$3.55

This product was last offered at the strikethrough price on
09-19-2026

$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#251948 - 06C133843 - Air Filter - Keep clean air running through your engine - Mann - Audi

Keep clean air running through your engine

Brand:
Mann - Corporate Logo
ES#:
251948
Mfg#:
06C133843
In Stock
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer - Priced Each

ES#2561282 - N0138514 - Sealing Washer - Priced Each - Used with the banjo bolt to create a leak free seal. 12x18 - Rein - Audi Volkswagen

Used with the banjo bolt to create a leak free seal. 12x18 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Seals the oil return line/adapter to the turbocharger

Brand:
Rein - Corporate Logo
ES#:
2561282
Mfg#:
N0138514
In Stock
$1.40 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug Kit - Priced Each

ES#2535191 - 357121140 - Coolant Flange Plug Kit - Priced Each - Includes the plug, o-ring and securing clip - URO - Audi Volkswagen

Includes the plug, o-ring and securing clip 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535191
Mfg#:
357121140
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Pipe Gasket Set

ES#2574925 - 8E0898380 - Heater Core Pipe Gasket Set - Includes the necessary gaskets and clamps for your new heater core - ACM - Audi Volkswagen

Includes the necessary gaskets and clamps for your new heater core

Brand:
ACM - Corporate Logo
ES#:
2574925
Mfg#:
8E0898380
Ships in 1 Business Day
$22.00

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

$21.99 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.

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

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