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Audi B6 A4 Quattro 1.8T Engine Parts & Accessories

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ES#3677913 - 06B903137D - Performance Kevlar Reinforced Accessory Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
ECS - Corporate Logo
ES#:
3677913
Mfg#:
06B903137D
Ships in 7 Business Days
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2680957 - 06A905115D - Ignition Coil - Priced Each - Keep your engine running smooth - Bremi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bremi - Corporate Logo
ES#:
2680957
Mfg#:
06A905115D
In Stock
16% off MSRP

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

$29.85

This product was last offered at the strikethrough price on
03-25-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2840950 - f21l - F21 Hybrid Turbocharger - Complete bolt on Turbo upgrade includes exhaust manifold & Turbo inlet hose - FrankenTurbo - Audi

Complete bolt on Turbo upgrade includes exhaust manifold & Turbo inlet hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FrankenTurbo - Corporate Logo
ES#:
2840950
Mfg#:
F21L
Ships in 3 Business Days
$1299.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2158199 - 06A115561B - Oil Filter - Priced Each - Replaces OEM# 06A115561B German quality for your Volkswagen - Hengst - Audi Volkswagen
ECS Tuning recommends this product.

Replaces OEM# 06A115561B German quality for your Volkswagen 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! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
2158199
Mfg#:
06A115561B
In Stock
$11.39

This product was last offered at the strikethrough price on
06-10-2026

$10.49 USD
Free Shipping
on orders $49 and up
ES#1591 - 058145757A - Turbo Oil Line Gasket - Seals the oil return lines to the oil pan - Elring - Audi Volkswagen

Seals the oil return lines to the oil pan affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
1591
Mfg#:
058145757A
In Stock
$5.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4742768 - P4-VW18T815-N4 - Supertech Piston - .5mm Oversize - Set Of 4 - Supertech .5mm oversized piston set including 20mm wrist pins. - Supertech - Audi Volkswagen

Supertech .5mm oversized piston set including 20mm wrist pins. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
4742768
Mfg#:
P4-VW18T815-N4
Ships on Jul 6, 2026
$638.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#2749017 - 06B145735F - Oil Return Line  - Connects the turbocharger to the oil pan - URO - Audi Volkswagen

Connects the turbocharger to the oil pan affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2749017
Mfg#:
06B145735F
Ships in 1 Business Day
$115.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4151978 - N10268304 - Hex Bolt - Priced Each - Install new hardware with your new parts. M8x45 - Rein - Audi Volkswagen

Install new hardware with your new parts. M8x45 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4151978
Mfg#:
N10268304
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2587686 - 8D0805121KT -  Front Belly Pan Installation Hardware Kit - Includes required hardware to secure the front belly pan - Assembled By ECS - Audi

Includes required hardware to secure the front belly pan 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#:
2587686
Mfg#:
8D0805121KT
In Stock
ON SALE! SAVE 24%
$164.99

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

$125.07 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4818403 - 026906283J - Solenoid Valve (N249) - Priced Each - Controls actuation of the Combi Valve or Diverter Valve - Bremmen Parts - Audi Volkswagen

Controls actuation of the Combi Valve or Diverter Valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818403
Mfg#:
026906283J
In Stock
ON SALE! SAVE 15%
$48.99

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

$41.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4920518 - 3R0959126 - A/C Pressure Safety Switch - Prevents excess pressure from building within the system - URO - Audi

Prevents excess pressure from building within the system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
URO - Corporate Logo
ES#:
4920518
Mfg#:
3R0959126
Ships in 1 Business Day
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#514327 - 204-4104 - Cylinder Head Stud Set - With Tool - Convert to high strength head studs - ARP - Audi Volkswagen

Convert to high strength head studs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ARP - Corporate Logo
ES#:
514327
Mfg#:
204-4104
Ships in 7 Business Days
$310.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4615447 - 06F103107G - Camshaft Adjuster Repair Kit - Located on the back of the cylinder head. Includes Housing, Housing Gasket, and Solenoid. - URO - Audi Volkswagen

Located on the back of the cylinder head. Includes Housing, Housing Gasket, and Solenoid. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4615447
Mfg#:
06F103107G
Ships in 1 Business Day
$619.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4818434 - 06A145710P - Diverter Valve - A great upgrade for stock to mildly tuned engines - Bremmen Parts - Audi Volkswagen

A great upgrade for stock to mildly tuned engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818434
Mfg#:
06A145710P
In Stock
ON SALE! SAVE 20%
$41.99

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

$33.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#240391 - 06B121111K - Thermostat Assembly - Includes housing, gasket & sensor - Mahle - Audi

Includes housing, gasket & sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle - Corporate Logo
ES#:
240391
Mfg#:
06B121111K
Ships in 1 Business Day
$123.22 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2864538 - 034-101-3002 - Reinforced Silicone Breather Hose Kit - Upgrade from weaker rubber hoses - 034Motorsport - Audi Volkswagen

Upgrade from weaker rubber hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to VIN 8E-3-040000, split is in the 2003 model year

Brand:
034Motorsport - Corporate Logo
ES#:
2864538
Mfg#:
034-101-3002
In Stock
$246.00 USD
Free Shipping
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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