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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Engine Parts & Accessories

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Allen Bolt (5mm) - Priced Each

ES#2770514 - N01474011 - Allen Bolt (5mm) - Priced Each - Stainless steel for extra corrosion resistance. M6x16 - ECS - Audi Volkswagen

Stainless steel for extra corrosion resistance. M6x16 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2770514
Mfg#:
N01474011
In Stock
ON SALE! SAVE 25%
$0.99

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

$0.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Sealing O-Ring - Priced Each

ES#274529 - 037121687 - Coolant Flange Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 36x3.15 - Genuine Volkswagen Audi - Audi Volkswagen

Install a new o-ring for a proper seal. 36x3.15 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274529
Mfg#:
037121687
In Stock
30% off MSRP

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

$7.08

This product was last offered at the strikethrough price on
06-11-2026

$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 2 With ECS Billet Aluminum J-Plug

ES#2795704 - 06B121111KT3 - Cooling System Refresh Kit - Level 2 With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-plug & replace your thermostat, temp sensors, coolant flange, & expansion tank with one kit! - Assembled By ECS - Audi

Includes ECS' upgraded J-plug & replace your thermostat, temp sensors, coolant flange, & expansion tank with one kit! 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#:
2795704
Mfg#:
06B121111KT3
In Stock at Vendor
ON SALE! SAVE 17%
$317.99

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

$264.08 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Density Line Mount Mount Kit - Track Density

ES#3183375 - 034-509-0007tdKT - Density Line Mount Mount Kit - Track Density - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi

Void-free and fluid-free, eliminating the slop associated with the factory mounts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3183375
Mfg#:
034-509-0007TDKT
In Stock
$264.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Hose

ES#280042 - 06B133356AG - Turbo Inlet Hose - Connects the air box to the turbocharger - Genuine Volkswagen Audi - Audi

Connects the air box to the turbocharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2004 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280042
Mfg#:
06B133356AG
Ships in 1-2 days
8% off MSRP

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

$287.99

This product was last offered at the strikethrough price on
06-11-2026

$263.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.0T Coil Pack Conversion Kit - Stage 1

ES#2731573 - 002598ECS26KT - 2.0T Coil Pack Conversion Kit - Stage 1 - Includes wrinkle black conversion plate and stainless steel hardware - ECS - Audi Volkswagen

Includes wrinkle black conversion plate and stainless steel hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2731573
Mfg#:
002598ECS26KT
In Stock
ON SALE! SAVE 20%
$164.99

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

$131.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit

ES#2731735 - MK44C3KKT2 - Oil Service Kit - Includes large Mann oil filter and Vaico 5w-40 oil - Assembled By ECS - Audi Volkswagen

Includes large Mann oil filter and Vaico 5w-40 oil 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#:
2731735
Mfg#:
MK44C3KKT2
Ships on Oct 7, 2026
ON SALE!
$66.99

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

$65.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

EGR Valve Gasket - Priced Each

ES#2718617 - 078131120K - EGR Valve Gasket - Priced Each - Ensure a proper seal - Elring - Audi Volkswagen

Ensure a proper seal 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#:
2718617
Mfg#:
078131120K
In Stock
$5.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose Elbow

ES#3194560 - 06A103213AM - Breather Hose Elbow - Connects the oil filter adapter to the hard breather tube - URO - Audi Volkswagen

Connects the oil filter adapter to the hard breather tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
From VIN 8E-4-000001, split is in the 2004 model year

Brand:
URO - Corporate Logo
ES#:
3194560
Mfg#:
06A103213AM
In Stock
$11.99

This product was last offered at the strikethrough price on
06-05-2026

$10.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Compression Dropping Head Gasket

ES#4028164 - 034-201-3100 - Compression Dropping Head Gasket - This gasket will drop compression 0.5 point over stock. - 034Motorsport - Audi Volkswagen

This gasket will drop compression 0.5 point over stock. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4028164
Mfg#:
034-201-3100
Back Ordered
$129.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley

ES#2562436 - 06A105243E - Crankshaft Pulley - Standard size replacement vibration dampening pulley - Febi - Audi Volkswagen

Standard size replacement vibration dampening pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2562436
Mfg#:
06A105243E
Ships in 4 Business Days
$132.99

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

$128.99 USD
Free Shipping

Ignition Coil - Priced Each

ES#3220407 - 06C905115M - Ignition Coil - Priced Each - Keep your engine running smooth - Delphi - Audi Volkswagen

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

Brand:
Delphi - Corporate Logo
ES#:
3220407
Mfg#:
06C905115M
Ships in 1-2 days
$43.99

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2581839 - 06B903133EKT - Accessory Belt Kit - Includes belt, tensioner, & hardware to ensure that your belt is tight and reliable. - Assembled By ECS - Audi

Includes belt, tensioner, & hardware to ensure that your belt is tight and reliable. 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:
Assembled By ECS - Corporate Logo
ES#:
2581839
Mfg#:
06B903133EKT
Ships on Jul 17, 2026
Auto Notify
ON SALE! SAVE 21%
$107.99

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

$85.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor

ES#2725346 - 038906051D - MAP Sensor - Measures the pressure in the turbocharger system (small design MAP sensor) - Vemo - Audi Volkswagen

Measures the pressure in the turbocharger system (small design MAP sensor) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2725346
Mfg#:
038906051D
In Stock at Vendor
$65.99

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

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Emissions Service Kit

ES#2219669 - 06A103213F - Emissions Service Kit - Complete PCV Refresh Kit for your engine - Assembled By ECS - Audi

Complete PCV Refresh Kit for your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8E-3-040000, split is in the 2003 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2219669
Mfg#:
06A103213F
Ships in 4 Business Days
ON SALE!
$268.99

This product was last offered at the strikethrough price on
01-29-2026

$255.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley Hardware Kit

ES#271279 - 028903320C - Alternator Pulley Hardware Kit - A new washer and nut to install your pulley - Genuine Volkswagen Audi - Audi Volkswagen

A new washer and nut to install your pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271279
Mfg#:
028903320C
Ships in 1-2 days
11% off MSRP

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

$18.99

This product was last offered at the strikethrough price on
06-11-2026

$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.

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