Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

Audi B6 A4 Quattro 1.8T

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Audi B6 A4 Quattro 1.8T
Your Vehicle Audi B6 A4 Quattro 1.8T
Change Clear

Audi B6 A4 Quattro 1.8T Engine Parts & Accessories

Sort By
Filter By
Return to Top

Billet Boost Tap Kit

ES#3221034 - 019935ECS01 - Billet Boost Tap Kit - Taps in between manifold vacuum line to create a boost reference source - Includes clamps - ECS - Audi Volkswagen

Taps in between manifold vacuum line to create a boost reference source - Includes clamps 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3221034
Mfg#:
019935ECS01
In Stock
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#10026 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Vaico - Audi Volkswagen Porsche

Keep proper pressure in your coolant system We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
10026
Mfg#:
3B0121321
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#2828404 - 06F121011 - Water Pump - Featuring a metal impeller - URO - Audi Volkswagen

Featuring a metal impeller 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2828404
Mfg#:
06F121011
Ships in 2 Business Days
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#2794316 - JE18T242909 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
2794316
Mfg#:
JE18T242909
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#3509366 - JE18T242926 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
3509366
Mfg#:
JE18T242926
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#4849836 - 353830 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
4849836
Mfg#:
353830
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Adjustable Camshaft Gear

ES#4430959 - CTS-HW-153 - CTS Turbo Adjustable Camshaft Gear - Allows for fine adjustment with +/- 10 degrees of range, giving you the ability to tune the power band with the ability to retard or advance timing. - CTS - Audi Volkswagen

Allows for fine adjustment with +/- 10 degrees of range, giving you the ability to tune the power band with the ability to retard or advance timing.

Brand:
CTS - Corporate Logo
ES#:
4430959
Mfg#:
CTS-HW-153
Ships in 8 Business Days
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coil Pack Hold Down Kit - Black

ES#260956 - ECS42725KT-A - Coil Pack Hold Down Kit - Black - A creative & attractive solution for your coil pack "popping" problem - ECS - Audi Volkswagen

A creative & attractive solution for your coil pack "popping" problem 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
260956
Mfg#:
ECS42725KT-A
In Stock
ON SALE! SAVE 10%
$124.99

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

$112.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Coolant Hose - Supply

ES#4069247 - 06B121497F - Turbo Coolant Hose - Supply - Connects the turbocharger to the connection flange - Rein - Audi Volkswagen

Connects the turbocharger to the connection flange 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069247
Mfg#:
06B121497F
In Stock
$76.99

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

$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Breather Hose

ES#3173640 - 06F103235A - PCV Breather Hose - Connects the PCV valve to oil filter adapter - Rein - Audi Volkswagen

Connects the PCV valve to oil filter adapter 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3173640
Mfg#:
06F103235A
In Stock
$39.99

This product was last offered at the strikethrough price on
04-27-2026

$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer - Priced Each

ES#9886 - n0138514 - Sealing Washer - Priced Each - Used with the banjo bolt to create a leak free seal. 12x18 - Genuine Volkswagen Audi - Audi Volkswagen

Used with the banjo bolt to create a leak free seal. 12x18 Seals the oil return line/adapter to the turbocharger

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
9886
Mfg#:
N0138514
In Stock
$2.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Belly Pan Installation Hardware Kit

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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587686
Mfg#:
8D0805121KT
In Stock
ON SALE! SAVE 23%
$164.99

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

$127.35 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Main Seal Upgrade

ES#3575891 - 462-103-171A - Billet Aluminum Rear Main Seal Upgrade - Permanent fix for that leaking rear main seal - iABED Industries - Audi Volkswagen

Permanent fix for that leaking rear main seal

Brand:
iABED Industries - Corporate Logo
ES#:
3575891
Mfg#:
462-103-171A
Back Ordered
$99.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Ultimate Plus

ES#8146 - 06b198500 - Timing Belt Kit - Ultimate Plus - The ultimate in preventative maintenance! - Assembled By ECS - Audi

The ultimate in preventative maintenance! 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
8146
Mfg#:
06B198500
In Stock
ON SALE!
$317.99

This product was last offered at the strikethrough price on
09-10-2026

$296.02 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Lower Radiator Hose

ES#2575466 - 8E0121049N - Lower Radiator Hose - Connects the lower radiator to the expansion tank and thermostat housing - Rein - Audi

Connects the lower radiator to the expansion tank and thermostat housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2575466
Mfg#:
8E0121049N
Ships in 3 Business Days
$91.58

This product was last offered at the strikethrough price on
08-26-2026

$80.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Valve - Priced Each

ES#2801285 - 058109611E - Exhaust Valve - Priced Each - A sodium filled valve - Rein - Audi Volkswagen

A sodium filled valve 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801285
Mfg#:
058109611E
Ships in 4 Business Days
$24.99

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

$16.99 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings