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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Engine Parts & Accessories

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Oxygen Sensor - Priced Each

ES#2539127 - 1K0998262D - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi Volkswagen

Keep your engine running efficiently We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2539127
Mfg#:
1K0998262D
In Stock
$193.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Maestro Tuning Suite - With Powertap Air Flash Tool

ES#3148271 - ED-MT-A4-1.8TKT - Maestro Tuning Suite - With Powertap Air Flash Tool - Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware - Eurodyne - Audi

Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware

Brand:
Eurodyne - Corporate Logo
ES#:
3148271
Mfg#:
ED-MT-A4-1.8TKT
In Stock
$799.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Coils - Set Of Four

ES#5336660 - 056059la09-4KT - ECS Performance Ignition Coils - Set Of Four - Increased energy output over OE coils for a stronger, more consistent spark! - ECS - Audi Volkswagen

Increased energy output over OE coils for a stronger, more consistent spark! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
5336660
Mfg#:
056059LA09-4KT
In Stock
ON SALE! SAVE 20%
$143.99

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

$115.17 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

K03 Turbocharger

ES#251724 - 058145703J - K03 Turbocharger - Restore boost and get going! - BorgWarner - Audi Volkswagen

Restore boost and get going!

Brand:
BorgWarner - Corporate Logo
ES#:
251724
Mfg#:
058145703J
In Stock
$780.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

F21 Hybrid Turbocharger

ES#2840950 - f21l - F21 Hybrid Turbocharger - Complete bolt on Turbo upgrade includes exhaust manifold & Turbo inlet hose - FrankenTurbo - Audi

Complete bolt on Turbo upgrade includes exhaust manifold & Turbo inlet hose

Brand:
FrankenTurbo - Corporate Logo
ES#:
2840950
Mfg#:
F21L
Ships in 3 Business Days
$1299.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#264174 - 059919501AKT2 - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Updated Green sensor with square/round connector. Please check existing sensor color - Genuine Volkswagen Audi - Audi Volkswagen

Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color Located in the coolant flange

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
264174
Mfg#:
059919501AKT2
In Stock
$47.91 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

K04 0015 Turbocharger With Installation Kit

ES#3365 - 058145703KO4WGKT - K04 0015 Turbocharger With Installation Kit - Great bolt on performance upgrade that can be used with or without specific programming - Assembled By ECS - Audi Volkswagen

Great bolt on performance upgrade that can be used with or without specific programming 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3365
Mfg#:
058145703KO4WGKT
Back Ordered
$1938.99

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

$1937.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Radiator

ES#252302 - 8E0121251A - Coolant Radiator - Keep your cooling system operating properly - Nissens - Audi

Keep your cooling system operating properly We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
252302
Mfg#:
8E0121251A
Ships in 1 Business Day
$174.99

This product was last offered at the strikethrough price on
09-12-2026

$171.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#3545338 - 3451 - Radiator - Fix leaks and keep your cooling system efficient - Featuring OEM specified Plastic Tank/Aluminum Core Construction *Not plug and play - Has extra brass fittings* - CSF - Audi

Fix leaks and keep your cooling system efficient - Featuring OEM specified Plastic Tank/Aluminum Core Construction *Not plug and play - Has extra brass fittings* 2X Entries Into Our F80 M3 Sweepstakes

Brand:
CSF - Corporate Logo
ES#:
3545338
Mfg#:
3451
In Stock
$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS High Performance Ignition Coil - Set Of Four

ES#4419107 - cts-ign-006KT - CTS High Performance Ignition Coil - Set Of Four - These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at its peak performance. - CTS - Audi Volkswagen

These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at it’s peak performance. To be used with 2.0T conversion plate only

Brand:
CTS - Corporate Logo
ES#:
4419107
Mfg#:
CTS-IGN-006KT
In Stock
$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Stem Seal - Priced Each

ES#2581847 - 036109675 - Valve Stem Seal - Priced Each - Seals the valve stem in the cylinder head. 6mm - Elring - Audi Volkswagen

Seals the valve stem in the cylinder head. 6mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2581847
Mfg#:
036109675
In Stock
$2.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#4046596 - 05C919501 - Coolant Temperature Sensor - Monitors coolant temperature for fan control & gauge readings - Genuine Volkswagen Audi - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings 2-pin temperature sensor located in lower radiator hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4046596
Mfg#:
05C919501
In Stock
3% off MSRP

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

$35.99

This product was last offered at the strikethrough price on
09-12-2026

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#3447 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Bosch - Audi Volkswagen Porsche

Common cure for DTC P0441 We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3447
Mfg#:
1C0906517A
In Stock
$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2574945 - 06B121111KKT - Thermostat Replacement Kit - Includes new thermostat, j-plug, o-ring, and hardware - Assembled By ECS - Audi

Includes new thermostat, j-plug, o-ring, and hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2574945
Mfg#:
06B121111KKT
In Stock
ON SALE! SAVE 19%
$116.99

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

$94.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Zerex Coolant / Antifreeze - Pink G40 (Concentrate) 1 Gallon

ES#4884761 - 0009897110090109 - Zerex Coolant / Antifreeze - Pink G40 (Concentrate) 1 Gallon - MBZ Approval: 325.5 / 325.6 - Genuine Mercedes Benz - Audi Volkswagen Mercedes Benz Porsche

MBZ Approval: 325.5 / 325.6

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4884761
Mfg#:
0009897110090109
In Stock
2% off MSRP

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

$32.04

This product was last offered at the strikethrough price on
09-12-2026

$31.50 USD
Free Shipping
on orders $49 and up

Mass Air Flow Sensor (MAF)

ES#4940285 - 0280218063SJ - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - URO - Audi Volkswagen

Restore fuel economy and performance 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO - Corporate Logo
ES#:
4940285
Mfg#:
0280218063SJ
In Stock
$59.99 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.

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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