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Audi A4 Engine Parts & Accessories

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CTS Turbo B8/B8.5 2.0T BOSS 600 Turbo Kit

ES#4017688 - CTS-B8A4-BOSS600 - CTS Turbo B8/B8.5 2.0T BOSS 600 Turbo Kit - A big turbo kit that is truly bolt-on! - This kit replaces the factory turbo and is made to work with most of your installed parts - CTS - Audi

A big turbo kit that is truly bolt-on! - This kit replaces the factory turbo and is made to work with most of your installed parts *Does not include fueling, charge pipe setup, or tuning - Proper software is required*

Brand:
CTS - Corporate Logo
ES#:
4017688
Mfg#:
CTS-B8A4-BOSS600
Ships in 7 Business Days
$2899.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B7 A4 2.0T Cat-Back Exhaust System - Resonated

ES#2917843 - SSXAU517 - B7 A4 2.0T Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual GT 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual GT 100mm polished tips Automatic transmission only

Brand:
Milltek Sport - Corporate Logo
ES#:
2917843
Mfg#:
SSXAU517
Ships in 5 Business Days
ON SALE! SAVE 10%
$1606.99

This product was last offered at the strikethrough price on
09-18-2026

$1445.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Resonator Delete Kit

ES#4830681 - CTS-EXH-TP-0011 - Resonator Delete Kit - Installing this part allows for a subtle exhaust sound increase on your factory exhaust - CTS - Audi

Installing this part allows for a subtle exhaust sound increase on your factory exhaust

Brand:
CTS - Corporate Logo
ES#:
4830681
Mfg#:
CTS-EXH-TP-0011
Back Ordered
$179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#4030465 - 06L117021G - Oil Cooler - A possible source of leaking oil or coolant - URO - Audi Volkswagen

A possible source of leaking oil or coolant 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4030465
Mfg#:
06L117021G
In Stock
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug - Pack Of 10

ES#4352834 - 06L103801KT2 - Oil Drain Plug - Pack Of 10 - Stock up and save! - Hamburg Tech - Audi Volkswagen Porsche

Stock up and save! We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4352834
Mfg#:
06L103801KT2
In Stock
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Ultimate

ES#6143 - B6A4UTBKLV - Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save. - Assembled By ECS - Audi

Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save. 10X Entries Into Our F80 M3 Sweepstakes
From VIN 8E-4-191001, split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
6143
Mfg#:
B6A4UTBKLV
In Stock
ON SALE!
$236.99

This product was last offered at the strikethrough price on
04-08-2026

$221.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Breather Tube

ES#2099472 - 06D103215A - Breather Tube - If you have boost leaks, get a new breather tube today - Genuine Volkswagen Audi - Audi

If you have boost leaks, get a new breather tube today Fits from VIN 8E-6-165 001 - Split is in the 2006 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2099472
Mfg#:
06D103215A
In Stock
20% off MSRP

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

$143.33

This product was last offered at the strikethrough price on
09-20-2026

$115.07 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Motorsport Street Density Motor Mount Kit

ES#2864596 - 034-509-0005 - Motorsport Street Density Motor Mount Kit - The ultimate in performance and durability - 034Motorsport - Audi Volkswagen

The ultimate in performance and durability 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864596
Mfg#:
034-509-0005
In Stock
$359.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#253082 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
253082
Mfg#:
3B0121321
In Stock
25% off MSRP

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

$37.18

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

$27.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler

ES#3545462 - 06J117021J - Engine Oil Cooler - Lowers engine oil temperature - URO - Audi Volkswagen

Lowers engine oil temperature 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3545462
Mfg#:
06J117021J
In Stock
$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N205 Valve

ES#4272109 - 06F109257C - N205 Valve - Valve that controls cam adjustment - URO - Audi Volkswagen

Valve that controls cam adjustment 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4272109
Mfg#:
06F109257C
In Stock
$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Timing Chain Kit

ES#2669434 - 06K109158AKT3 - 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 From production date 7/2/2013

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2669434
Mfg#:
06K109158AKT3
In Stock
$965.99

This product was last offered at the strikethrough price on
08-03-2026

$955.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8100 X-Clean Engine Oil (5w-40) - 1 Liter

ES#261461 - 841611 - 8100 X-Clean Engine Oil (5w-40) - 1 Liter - 100% Synthetic engine oil specially designed around the demands of direct fuel injection engines. - Motul - Audi BMW Volkswagen

100% Synthetic engine oil specially designed around the demands of direct fuel injection engines.

Brand:
Motul - Corporate Logo
ES#:
261461
Mfg#:
841611
In Stock
10% off MSRP

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

$19.53

This product was last offered at the strikethrough price on
09-20-2026

$17.58 USD
Free Shipping
on orders $49 and up

Idler Pulley

ES#3981244 - YC0B - Idler Pulley - Provides mounting for the fan clutch - URO - Audi Volkswagen

Provides mounting for the fan clutch 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3981244
Mfg#:
078121235G
In Stock
$150.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#251228 - 06A906433L - Crankshaft Position Sensor - Also known as the RPM or Impulse sensor. - Bosch - Audi Volkswagen

Also known as the RPM or Impulse sensor. We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
251228
Mfg#:
06A906433L
In Stock
$45.99 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.

Let us help you find the parts that fit your Audi

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