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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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Purge Valve

ES#4376432 - 1C0 906 517A - Purge Valve - Common cure for DTC P0441 - URO - Audi Volkswagen

Common cure for DTC P0441 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4376432
Mfg#:
1C0 906 517A
Ships in 2 Business Days
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Plastic Dowel Pin - Priced Each

ES#2628447 - 4A0805121A - Plastic Dowel Pin - Priced Each - Secures the belly pan to the fender liners - Vaico - Audi Volkswagen

Secures the belly pan to the fender liners We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2628447
Mfg#:
4A0805121A
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Stud - Priced Each

ES#252395 - n90835802 - Valve Cover Stud - Priced Each - Used in securing the valve cover to the cylinder head. M6x35 - Genuine Volkswagen Audi - Audi Volkswagen

Used in securing the valve cover to the cylinder head. M6x35

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
252395
Mfg#:
N90835802
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor Adapter Flange

ES#3137484 - 034-145-F015 - MAP Sensor Adapter Flange - MAP Sensor adapter flange for VW/Audi MAP sensors - Perfect for use when building your own intercooler plumbing - 034Motorsport - Audi Volkswagen

MAP Sensor adapter flange for VW/Audi MAP sensors - Perfect for use when building your own intercooler plumbing

Brand:
034Motorsport - Corporate Logo
ES#:
3137484
Mfg#:
034-145-F015
In Stock
$42.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor

ES#279795 - 06A906473A - Mass Air Flow Sensor - Sensor only without housing - Genuine Volkswagen Audi - Audi

Sensor only without housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279795
Mfg#:
06A906473A
Ships in 9 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.

$404.99

This product was last offered at the strikethrough price on
07-26-2026

$376.99 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 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2731735
Mfg#:
MK44C3KKT2
Ships on Oct 14, 2026
Auto Notify
$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Lower Connecting Rod Bearing - Priced Each

ES#280396 - 06D105701KGLB - Lower Connecting Rod Bearing - Priced Each - Lower portion of the bearing shell - Genuine Volkswagen Audi - Audi Volkswagen

Lower portion of the bearing shell

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280396
Mfg#:
06D105701KGLB
Ships in 3 Business Days
10% off MSRP

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

$51.99

This product was last offered at the strikethrough price on
07-26-2026

$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#4818457 - 06E117021L - Oil Cooler - Common source of undiscoverable coolant leaks - Bremmen Parts - Audi Volkswagen

Common source of undiscoverable coolant leaks 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818457
Mfg#:
06E117021L
In Stock
ON SALE! SAVE 20%
$93.99

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

$75.06 USD
Free Shipping
on orders $49 and up

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 For Our 25th Anniversary 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

Secondary Air Injection Pump

ES#2816564 - 95560560101 - Secondary Air Injection Pump - Keep your engine running efficiently - Hamburg Tech - Audi Volkswagen Porsche

Keep your engine running efficiently We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816564
Mfg#:
95560560101
Ships in 2 Business Days
$185.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#4817 - N90369001 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M10 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M10 Used to secure the catalyst/downpipe to the turbo

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4817
Mfg#:
N90369001
In Stock
31% off MSRP

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

$17.45

This product was last offered at the strikethrough price on
07-08-2026

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

Accessory Belt Kit

ES#2581840 - 06B903133EKT1 - Accessory Belt Kit - Includes belt, tensioner, & hardware to ensure that your belt is tight! - Assembled By ECS - Audi

Includes belt, tensioner, & hardware to ensure that your belt is tight! 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8E-4-191001 - split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581840
Mfg#:
06B903133EKT1
In Stock
ON SALE! SAVE 18%
$112.99

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

$92.73 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR K04 Software Upgrade Service

ES#2063664 - APRLNGK04-SWUSRV - APR K04 Software Upgrade Service - Software upgrade for existing APR Chip customers with a K04 already installed - Minimum requirements of K04-0015 turbocharger, Injectors, and high flow cat - APR - Audi

Software upgrade for existing APR Chip customers with a K04 already installed - Minimum requirements of K04-0015 turbocharger, Injectors, and high flow cat Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
For customers with existing APR software - This upgrade must be performed via our Chip & Ship method.

Brand:
APR - Corporate Logo
ES#:
2063664
Mfg#:
APRLNGK04-SWUSRV
In Stock
$369.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Plus Timing Belt Kit - With Gates Racing Timing Belt

ES#2569782 - 06B198500KT - 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 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#:
2569782
Mfg#:
06B198500KT
In Stock
ON SALE! SAVE 14%
$429.99

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

$369.41 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Timing Belt Idler Roller - Lower

ES#3958 - 06B109244 - Timing Belt Idler Roller - Lower - Replace with timing belt service - NTN - Audi Volkswagen

Replace with timing belt service

Brand:
NTN - Corporate Logo
ES#:
3958
Mfg#:
06B109244
Ships in 1-2 days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2.0T Coil Pack Conversion Kit - Stage 2

ES#2713405 - 002598ECS16KT - 2.0T Coil Pack Conversion Kit - Stage 2 - Includes anodized black conversion plate -w- black 2.0T coils and silver hold down kit - ECS - Audi Volkswagen

Includes anodized black conversion plate -w- black 2.0T coils and silver hold down kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2713405
Mfg#:
002598ECS16KT
In Stock
$366.99 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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