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Audi A4 Engine Parts & Accessories

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ES#2864539 - 034-101-3003 - Reinforced Silicone Breather Hose Kit - Upgrade from weaker rubber hoses - 034Motorsport - Audi

Upgrade from weaker rubber hoses 2X Entries Into Our F80 M3 Sweepstakes
From VIN 8E-3-500001, split is in the 2003 model year

Brand:
034Motorsport - Corporate Logo
ES#:
2864539
Mfg#:
034-101-3003
In Stock
$237.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2597993 - 001577ECS01A -  Performance Snub Mount - Reduce driveline lash with a full polyurethane mount - ECS - Audi Volkswagen

Reduce driveline lash with a full polyurethane mount 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
2597993
Mfg#:
001577ECS01A
In Stock
$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3365 - 058145703KO4WGKT - K04 0015 Turbocharger With Installation Kit - Great bolt on performance upgrade that can be used with or without specific programming - Assembled By ECS - Audi Volkswagen

Great bolt on performance upgrade that can be used with or without specific programming 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3365
Mfg#:
058145703KO4WGKT
Back Ordered
$1938.99

This product was last offered at the strikethrough price on
08-25-2026

$1893.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4069832 - CTSFPK004 - CTS Turbo Stage 3 Fuel Pump Kit - Walbro 525 - Fuel pump system to support all the power that your engine can handle! - CTS - Audi Volkswagen

Fuel pump system to support all the power that your engine can handle!

Brand:
CTS - Corporate Logo
ES#:
4069832
Mfg#:
CTSFPK004
Ships in 7 Business Days
ON SALE! SAVE 15%
$444.99

This product was last offered at the strikethrough price on
09-29-2026

$378.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4765661 - 06H903133G - Accessory Belt Tensioner - Keep your drive belt tight - Bremmen Parts - Audi

Keep your drive belt tight 10X Entries Into Our F80 M3 Sweepstakes

Up to the 2012 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4765661
Mfg#:
06H903133G
In Stock
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4753021 - 8W0121405L - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - URO - Audi

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4753021
Mfg#:
8W0121405L
In Stock
$81.99 USD
Free Shipping
ES#259936 - 078198025 - Valve Cover Gasket Set - Priced Each - Fits the left and right side - Elring - Audi Volkswagen

Fits the left and right side 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
259936
Mfg#:
078198025
In Stock
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5448029 - 53032801AC - Hemi Throttle Body - 80mm - The perfect solution for a high horsepower set ups - SMP - Audi Volkswagen

The perfect solution for a high horsepower set ups

Brand:
SMP - Corporate Logo
ES#:
5448029
Mfg#:
53032801AC
In Stock
$194.99

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

$187.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2827275 - SSXAU089 - Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual 100mm polished tips Fits 5 speed manual only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827275
Mfg#:
SSXAU089
Ships on Nov 30, 2026
$1875.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827276 - SSXAU090 - Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual 100mm polished tips Fits 6 speed manual only

Brand:
Milltek Sport - Corporate Logo
ES#:
2827276
Mfg#:
SSXAU090
Ships on Nov 30, 2026
$1875.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4019633 - 8K0201511A - Fuel Filter - Hengst - Audi
ECS Tuning recommends this product.

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
4019633
Mfg#:
8K0201511A
In Stock
$71.99 USD
Free Shipping
on orders $49 and up
ES#3618157 - 06k109158bsKT -  Ultimate Timing Chain Kit  - Includes all chains, tensioners, guide rails and securing hardware - Genuine Volkswagen Audi - Audi

Includes all chains, tensioners, guide rails and securing hardware For vehicles with production dates from 09/24/2008 through 05/18/2009

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3618157
Mfg#:
06K109158BSKT
In Stock
$976.99

This product was last offered at the strikethrough price on
09-23-2026

$934.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#3658465 - 06h906036abKT - Fuel Injectors - Set Of Four - Keep your engine running smooth! - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running smooth!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3658465
Mfg#:
06H906036ABKT
In Stock
$994.99

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

$934.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3200158 - 021097ECS01 - Carbon Fiber Oil Filter Cover - Easy to install carbon fiber cover to add subtle enhancements under your hood - ECS - Audi Volkswagen

Easy to install carbon fiber cover to add subtle enhancements under your hood 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
3200158
Mfg#:
021097ECS01
In Stock
27% off MSRP

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

$150.00

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

$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5457769 - 025254ECS01-04 - Gen3/DAZA Atmospheric Diverter Valve Spacer - Blue - Limited Edition - Individually Numbered - ECS - Audi Volkswagen

Limited Edition - Individually Numbered 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE
Fits models with OEM DV part numbers 06H145710J, 06H145710C, 06H145710E. Please verify before ordering.

Brand:
ECS - Corporate Logo
ES#:
5457769
Mfg#:
025254ECS01-04
In Stock
$84.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#269513 - 022109423D - Lash Adjuster - priced each - Maintain your factory tolerance - Genuine Volkswagen Audi - Audi Volkswagen

Maintain your factory tolerance

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
269513
Mfg#:
022109423D
In Stock
24% off MSRP

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

$21.57

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

$16.40 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.

Let us help you find the parts that fit your Audi

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

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