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Audi A4 Engine Parts & Accessories

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Radiator

Fix leaks and keep your cooling system efficient

Brand:
Spectra Premium - Corporate Logo
ES#:
4066923
Mfg#:
8K0121251H
In Stock at Vendor
$276.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Radiator

Keep your cooling system operating properly

Brand:
Spectra Premium - Corporate Logo
ES#:
4146571
Mfg#:
8E0121251A
In Stock at Vendor
$231.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

Includes the spark plug boot

Brand:
Spectra Premium - Corporate Logo
ES#:
4142132
Mfg#:
058905105
In Stock at Vendor
$44.99

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

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body

Includes the throttle sensor

Brand:
Spectra Premium - Corporate Logo
ES#:
4057643
Mfg#:
06F133062TSD12
In Stock at Vendor
$321.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

Keep your engine running smoothly

Brand:
Spectra Premium - Corporate Logo
ES#:
4057638
Mfg#:
06D906461
In Stock at Vendor
$192.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intercooler

Also referred to as the intercooler

Brand:
TYC - Corporate Logo
ES#:
4846329
Mfg#:
8W0145805AD
In Stock at Vendor
$272.99

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

$264.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 1+

Average gain of 58 horsepower and 80 lb-ft of torque on 93 Octane

Brand:
Tunezilla - Corporate Logo
ES#:
3437352
Mfg#:
TFSI-20T-1+
Ships in 7 Business Days
$599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Assembly - 280mm

300W with round 2 pin connector, Valeo style fans We Price Match - Give Us A Call or Chat!

Brand:
VDO - Corporate Logo
ES#:
4135635
Mfg#:
8D0959455C
In Stock at Vendor
$139.86

This product was last offered at the strikethrough price on
07-25-2026

$136.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

Monitors coolant temperature for fan control & gauge readings

Brand:
VNE - Corporate Logo
ES#:
4745318
Mfg#:
079919523J
In Stock at Vendor
$64.99 USD
Free Shipping
on orders $49 and up

Cylinder Head Coolant Pipe

Coolant supply pipe for the cylinder heads We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4707503
Mfg#:
06E121045R
In Stock at Vendor
$149.99

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

$145.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Tank

Holds vacuum pressure We Price Match - Give Us A Call or Chat!
Up to VIN 8E-3-100000, split is in the 2003 model year

Brand:
Vaico - Corporate Logo
ES#:
4714971
Mfg#:
038129807
In Stock at Vendor
$61.99

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

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor - Priced Each

Used to locate the position of the valves for proper engine operation under all conditions For vehicles with CYMC engine code only

Brand:
Walker - Corporate Logo
ES#:
4758300
Mfg#:
04C907601K
In Stock at Vendor
$54.99

This product was last offered at the strikethrough price on
04-11-2026

$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Plus ECU Upgrade

ES#3690535 - b9a420tstg1KT1 - APR Plus ECU Upgrade - Higher peak figures of 306 HP with 376 FT-LBS of torque - *with APR PLUS limited powertrain warranty* - APR - Audi Porsche

Higher peak figures of 306 HP with 376 FT-LBS of torque - *with APR PLUS limited powertrain warranty* Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
3690535
Mfg#:
B9A420TSTG1KT1
Ships in 1 day
ON SALE! SAVE 10%
$1099.99

This product was last offered at the strikethrough price on
07-31-2026

$989.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Engine Mount Kit

ES#4213948 - 8D0199339PKT4 - Complete Engine Mount Kit - Reduce excessive engine vibrations with new mounts and hardware - Assembled By ECS - Audi

Reduce excessive engine vibrations with new mounts and hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4213948
Mfg#:
8D0199339PKT4
Ships in 1 day
ON SALE!
$189.99

This product was last offered at the strikethrough price on
07-06-2026

$181.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

40k Service Kit

ES#258205 - B7A43.2SKKT - 40k Service Kit - Includes everything you need to complete the factory 40k service. - Assembled By ECS - Audi

Includes everything you need to complete the factory 40k service. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
258205
Mfg#:
B7A43.2SKKT
Ships in 1-2 days
$321.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Complete Transmission Mount Kit

ES#2796079 - 8E0399105HEKT - Complete Transmission Mount Kit - Includes mount and hardware to reduce driveline vibrations - Assembled By ECS - Audi

Includes mount and hardware to reduce driveline vibrations 10X Entries For Our 25th Anniversary Sweepstakes!
Fits 5-speed transmission codes ENN, FPS, FTW, & GBN

Brand:
Assembled By ECS - Corporate Logo
ES#:
2796079
Mfg#:
8E0399105HEKT
Ships in 1 day
ON SALE!
$98.99

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

$95.93 USD
Free Shipping
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

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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