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Audi A4 Engine Parts & Accessories

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Unitronic Carbon Fiber Intake System 2.0TSI B9 A4/A5

ES#4362349 - UH016-INA - Unitronic Carbon Fiber Intake System 2.0TSI B9 A4/A5 - Engineered for seamless integration within the engine bay and improves the performance, look and sound of your vehicle. - Unitronic - Audi

Engineered for seamless integration within the engine bay and improves the performance, look and sound of your vehicle.

Brand:
Unitronic - Corporate Logo
ES#:
4362349
Mfg#:
UH016-INA
Ships in 5 Business Days
$1469.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover - Left

ES#4810721 - 06E103471P - Valve Cover - Left - For cylinder 4-6 and includes the gasket and bolts - Mahle - Audi

For cylinder 4-6 and includes the gasket and bolts

Brand:
Mahle - Corporate Logo
ES#:
4810721
Mfg#:
06E103471P
In Stock
$251.99

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

$244.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt Set

ES#2550745 - 06A103385A - Cylinder Head Bolt Set - A full set to secure your cylinder head. M10x1.5x115 - Elring - Audi Volkswagen

A full set to secure your cylinder head. M10x1.5x115 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2550745
Mfg#:
06A103385A
In Stock
$20.99 USD
Free Shipping
on orders $49 and up
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.

$39.59

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

$29.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug (PFR6Q) - Priced Each

ES#7539 - pfr6q - Spark Plug (PFR6Q) - Priced Each - PFR6Q - Factory heat range plugs with platinum cores - NGK - Audi Volkswagen

PFR6Q - Factory heat range plugs with platinum cores We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
7539
Mfg#:
PFR6Q
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Waste Gate Frequency Control N75 Valve

ES#4818469 - 06F906283F - Waste Gate Frequency Control N75 Valve - Controls the boost pressure on turbocharger systems - Bremmen Parts - Audi Volkswagen

Controls the boost pressure on turbocharger systems 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818469
Mfg#:
06F906283F
In Stock
ON SALE! SAVE 17%
$23.99

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

$19.93 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Pump

ES#2718712 - 06A115105B - Engine Oil Pump - Keeps oil flowing through the engine - Vaico - Audi Volkswagen

Keeps oil flowing through the engine We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2718712
Mfg#:
06A115105B
In Stock
$85.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan - Lower

ES#4504896 - 06E103604K - Oil Pan - Lower - Replace your cracked or broken pan - Rein - Audi Volkswagen

Replace your cracked or broken pan 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4504896
Mfg#:
06E103604K
In Stock
$107.99

This product was last offered at the strikethrough price on
04-24-2026

$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Premium Oil Service Kit - With ECS Magnetic Drain Plug

ES#3143344 - 06J115403CKT7 - Premium Oil Service Kit - With ECS Magnetic Drain Plug - Includes HENGST oil filter and Liqui-Moly High Tech 5w-40 oil - Assembled By ECS - Audi

Includes HENGST oil filter and Liqui-Moly High Tech 5w-40 oil 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3143344
Mfg#:
06J115403CKT7
In Stock
$107.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Intake camshaft Kit

ES#3569874 - 06L109021HKT - Intake camshaft Kit - Lobed shaft responsible for operating intake valves - Genuine Volkswagen Audi - Audi Volkswagen

Lobed shaft responsible for operating intake valves

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3569874
Mfg#:
06L109021HKT
Ships in 1 day
$1456.99 USD
Free Shipping
on orders $49 and up
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
07-29-2026

$17.58 USD
Free Shipping
on orders $49 and up

Forged Head Studs for 1.8T 20V 137MM - Set Of 10

ES#4766620 - EXPRIS27 - Forged Head Studs for 1.8T 20V 137MM - Set Of 10 - Upgrade the head studs for your 20v 1.8t for higher boost builds! - SPA Performance - Audi Volkswagen

Upgrade the head studs for your 20v 1.8t for higher boost builds!

Brand:
SPA Performance - Corporate Logo
ES#:
4766620
Mfg#:
EXPRIS27
In Stock
$125.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Gasket

ES#281189 - 06F129717D - Intake Manifold Gasket - Seal up your intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Seal up your intake manifold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281189
Mfg#:
06F129717D
In Stock
29% off MSRP

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

$59.38

This product was last offered at the strikethrough price on
02-23-2026

$41.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Sensor

ES#4766162 - 06J906051D - High Pressure Fuel Sensor - Located on the fuel rail - Bremmen Parts - Audi Volkswagen

Located on the fuel rail 10X Entries For Our 25th Anniversary Sweepstakes!

From VIN 8E-7-000001, split is in the 2007 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766162
Mfg#:
06J906051D
Ships in 8 Business Days
Auto Notify
ON SALE! SAVE 21%
$60.99

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

$48.14 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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