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Audi A4 Engine Parts & Accessories

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Valve Cover Breather Adapter - 21mm Nipple Fittings

ES#3432298 - 034-101-5004 - Valve Cover Breather Adapter - 21mm Nipple Fittings - DIY breather port adapter to allow a provision for custom catch can setups on 2.0T FSI - 034Motorsport - Audi Volkswagen

DIY breather port adapter to allow a provision for custom catch can setups on 2.0T FSI 2X Entries Into Our F80 M3 Sweepstakes
FSI Engines only - To be used for DIY custom catch can setups

Brand:
034Motorsport - Corporate Logo
ES#:
3432298
Mfg#:
034-101-5004
Ships in 3 Business Days
ON SALE! SAVE 14%
$90.00

This product was last offered at the strikethrough price on
08-17-2026

$76.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Camshaft Seal

ES#3419775 - 06H103483D - Front Camshaft Seal - Seals leaks and ensures they don't return - Victor Reinz - Audi Volkswagen

Seals leaks and ensures they don't return

Brand:
Victor Reinz - Corporate Logo
ES#:
3419775
Mfg#:
06H103483D
In Stock at Vendor
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Speed Sensor O-Ring

ES#279783 - 06A906445 - Engine Speed Sensor O-Ring - Seals the connection between the speed sensor and the engine - Genuine Volkswagen Audi - Audi Volkswagen

Seals the connection between the speed sensor and the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279783
Mfg#:
06A906445
Ships in 5 Business 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.

$11.99

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

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#471150 - N90912501 - O-Ring - Priced Each - 32x5 - Genuine Volkswagen Audi - Audi

32x5

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471150
Mfg#:
N90912501
Ships in 1-2 days
3% off MSRP

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

$7.18

This product was last offered at the strikethrough price on
08-13-2026

$6.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2710668 - 06H121113B - Thermostat - Keep your cooling system efficient - Vemo - Audi Volkswagen

Keep your cooling system efficient For vehicles up to production date 6/3/2012

Brand:
Vemo - Corporate Logo
ES#:
2710668
Mfg#:
06H121113B
In Stock
ON SALE! SAVE 54%
$54.99

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

$25.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Control Unit

ES#2526295 - 4D0905351 - Ignition Control Unit - Cure misfires and clear the check engine light - Meyle - Audi Volkswagen

Cure misfires and clear the check engine light 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Engine code AEB - For vehicles with Bosch style ICM

Brand:
Meyle - Corporate Logo
ES#:
2526295
Mfg#:
4D0905351
Ships on Sep 11, 2026
$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pump Drive Chain

ES#2847744 - 06F115230 - Oil Pump Drive Chain - Chain that drives the oil pump - Febi - Audi Volkswagen

Chain that drives the oil pump We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2847744
Mfg#:
06F115230
Ships on Nov 20, 2026
$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Hose - Inlet

ES#2918548 - 058133817H - Secondary Air Injection Hose - Inlet - Connects the secondary air pump to the air box - Vaico Q+ - Audi Volkswagen

Connects the secondary air pump to the air box Engine codes ATW & AWM

Brand:
Vaico Q+ - Corporate Logo
ES#:
2918548
Mfg#:
058133817H
Special Order: No Guaranteed ETA
$75.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#3648459 - 06e903137jktKT3 - 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. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648459
Mfg#:
06E903137JKTKT3
Back Ordered
Auto Notify
$83.99

This product was last offered at the strikethrough price on
04-28-2026

$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Engine Mount - Right

ES#2808772 - 8E0199382AH - Hydraulic Engine Mount - Right - Eliminate excessive engine vibrations - Febi - Audi

Eliminate excessive engine vibrations We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2808772
Mfg#:
8E0199382AH
Ships in 3 Business Days
$75.99

This product was last offered at the strikethrough price on
08-20-2026

$75.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#2627317 - 8D0121055T - Radiator Hose - Lower - Connects the lower radiator port to the thermostat housing - Rein - Audi Volkswagen

Connects the lower radiator port to the thermostat housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8D -X-003501, split is in the 1999 model year

Brand:
Rein - Corporate Logo
ES#:
2627317
Mfg#:
8D0121055T
Ships in 4 Business Days
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Gasket - Priced Each

Fits left or right bank, O-Ring style Gasket From the 2004 model year

Brand:
Victor Reinz - Corporate Logo
ES#:
4145041
Mfg#:
078129717P
Ships in 3 Business Days
$38.99

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

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#3676786 - 8W0133843E - Air Filter - Ensure that your engine is getting clean air with a new OE Hengst filter - Hengst - Audi
ECS Tuning recommends this product.

Ensure that your engine is getting clean air with a new OE Hengst filter 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!
For vehicles with DBPA engine code only

Brand:
Hengst - Corporate Logo
ES#:
3676786
Mfg#:
8W0133843E
Ships on Sep 17, 2026
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Control Line

ES#450433 - 8K0201933M - Vacuum Control Line - Keep your vacuum system in check - Genuine Volkswagen Audi - Audi

Keep your vacuum system in check

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450433
Mfg#:
8K0201933M
Back Ordered
12% off MSRP

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

$42.99

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

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Priced Each

Iridium Long-Life

Brand:
Denso - Corporate Logo
ES#:
4810126
Mfg#:
101000016AA
Ships in 2 Business Days
$19.99

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

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor Gasket

ES#333318 - 357129625A - Mass Air Flow Sensor Gasket - Connects MAF to Air Cleaner. 79x6 - Genuine Volkswagen Audi - Audi Volkswagen

Connects MAF to Air Cleaner. 79x6

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
333318
Mfg#:
357129625A
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.

$20.99

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

$18.99 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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Manufacturer names and/or part numbers are used only for identification purposes.

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