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Audi B9 A4 FWD 2.0T

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Audi B9 A4 FWD 2.0T Engine Parts & Accessories

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Rear Crankshaft Seal - With Flange (Version B)

ES#4039458 - 06K103171G - Rear Crankshaft Seal - With Flange (Version B) - Also referred to as the rear main seal - Febi - Audi Volkswagen

Also referred to as the rear main seal We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4039458
Mfg#:
06K103171G
In Stock
$36.99

This product was last offered at the strikethrough price on
04-16-2026

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Stage 3 Fuel Pump Kit - Walbro 525

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 8 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

Coolant Expansion Tank

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

X34 Carbon Fiber Intake Air Duct

ES#3988147 - 034-108-1024 - X34 Carbon Fiber Intake Air Duct - The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System - 034Motorsport - Audi

The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System 2X Entries Into Our F80 M3 Sweepstakes
*To be used with 034Motorsport X34 Intake System or most aftermarket intakes that utilize the OEM air duct*

Brand:
034Motorsport - Corporate Logo
ES#:
3988147
Mfg#:
034-108-1024
In Stock
$377.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#4069168 - GN10632 - Ignition Coil - Priced Each - Keep your engine running smooth - Delphi - Audi Volkswagen

Keep your engine running smooth

Brand:
Delphi - Corporate Logo
ES#:
4069168
Mfg#:
GN10632
In Stock
$53.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Replacement MQB Drain Plug O-Ring - Priced Each

ES#3048195 - 9263K126 - Replacement MQB Drain Plug O-Ring - Priced Each - Finally, a replacement O-ring for your plastic oil pan's drain plug! Made from Viton Fluoroelastomer Rubber. - ECS - Audi Volkswagen Porsche

Finally, a replacement O-ring for your plastic oil pan's drain plug! Made from Viton® Fluoroelastomer Rubber. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3048195
Mfg#:
9263K126
In Stock
ON SALE! SAVE 25%
$4.99

This product was last offered at the strikethrough price on
06-13-2026

$3.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VTT Upgraded Ignition Coil Kit - Blue - Set Of Four

ES#4464726 - VTTCOILVAGBLUE4 - VTT Upgraded Ignition Coil Kit - Blue - Set Of Four - Exceeds the performance of factory RS3 coils and provides much higher spark output - Vargas Turbo Technologies - Audi Volkswagen

Exceeds the performance of factory RS3 coils and provides much higher spark output 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4464726
Mfg#:
VTTCOILVAGBLUE4
In Stock
$167.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Service Kit - With Service Tools

ES#4686055 - 002540LCA05KT - ECS Performance Ignition Service Kit - With Service Tools - Features ECS Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! - Assembled By ECS - Audi Volkswagen

Features ECS Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4686055
Mfg#:
002540LCA05KT
In Stock
ON SALE!
$367.99

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

$366.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

A/C Pressure Switch

ES#4145078 - 4H0959126B - A/C Pressure Switch - Prevents excess pressure from building within the system - Mahle - Audi

Prevents excess pressure from building within the system

Brand:
Mahle - Corporate Logo
ES#:
4145078
Mfg#:
4H0959126B
In Stock
$76.99

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

$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Crankshaft Seal - With Flange

ES#4046606 - 06K103171P - Rear Crankshaft Seal - With Flange - Also referred to as the rear main seal - Genuine Volkswagen Audi - Audi Volkswagen

Also referred to as the rear main seal

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4046606
Mfg#:
06K103171P
Ships in 3 Business Days
20% off MSRP

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

$321.65

This product was last offered at the strikethrough price on
10-12-2026

$258.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Priced Each

ES#3449346 - 06K905601D - Spark Plug - Priced Each - Platinum plug to keep your engine running strong - Bosch - Audi Volkswagen Porsche

Platinum plug to keep your engine running strong We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3449346
Mfg#:
06K905601D
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

1.8T/2.0T Gen3 Diverter Valve Upgrade - Black

ES#4839642 - 013907LA01-03KT - 1.8T/2.0T Gen3 Diverter Valve Upgrade - Black - The LAST diverter valve you'll ever need! Billet aluminum construction and heavy-duty Viton o-rings make for the ultimate upgrade in longevity and performance. - ECS - Audi Volkswagen Porsche

The LAST diverter valve you'll ever need! Billet aluminum construction and heavy-duty Viton o-rings make for the ultimate upgrade in longevity and performance. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4839642
Mfg#:
013907LA01-03KT
In Stock
ON SALE! SAVE 25%
$333.99

This product was last offered at the strikethrough price on
06-13-2026

$250.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Connecting Rod Bolts - Set Of Eight

ES#2575257 - WHT001319KT - Connecting Rod Bolts - Set Of Eight - Secures the connecting end caps. M9x50 - Genuine Volkswagen Audi - Audi Volkswagen

Secures the connecting end caps. M9x50

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2575257
Mfg#:
WHT001319KT
In Stock
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Connecting Rods - Set Of Four

ES#2831232 - 06H198401D - Connecting Rods - Set Of Four - Direct replacement connecting rods, includes rod bolts & caps - Genuine Volkswagen Audi - Audi Volkswagen

Direct replacement connecting rods, includes rod bolts & caps

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2831232
Mfg#:
06H198401D
Ships in 3 Business Days
4% off MSRP

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

$1829.99

This product was last offered at the strikethrough price on
10-12-2026

$1747.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lash Adjuster - priced each

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
Ships in 3 Business Days
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
10-12-2026

$16.40 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#3145391 - 06L903137A - Accessory Belt - Replaces your cracked or worn belt - Continental - Audi Volkswagen

Replaces your cracked or worn belt We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
3145391
Mfg#:
06L903137A
Ships in 9 Business Days
$24.99

This product was last offered at the strikethrough price on
06-24-2026

$18.65 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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