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Audi A3 Engine Parts & Accessories

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JE Performance Forged Piston Set

Includes rings, wire locks, and 23mm wrist pins - 82.5mm bore (stock), 9.6:1 CR, 92.8mm stroke (stock) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
To be used with connecting rods that accept 23mm wrist pins

Brand:
JE Piston - Corporate Logo
ES#:
4698730
Mfg#:
345818
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up

JE Performance Forged Piston Set

Includes rings, wire locks, and 21mm wrist pins - 83.0mm bore (0.5mm overbore), 9.1:1 CR, 92.8mm stroke (stock) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
To be used with connecting rods that accept 21mm wrist pins

Brand:
JE Piston - Corporate Logo
ES#:
4840062
Mfg#:
314312
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump

ES#4421756 - 06L145100N - Vacuum Pump - Generates vacuum when under positive pressure - Genuine Volkswagen Audi - Audi Volkswagen

Generates vacuum when under positive pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4421756
Mfg#:
06L145100N
Ships in 1-2 days
7% off MSRP

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

$482.99

This product was last offered at the strikethrough price on
06-19-2026

$449.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Pro ECU Tune With POWERlink Cable

ES#5457564 - IESOVN15 - IE Pro ECU Tune With POWERlink Cable - The enthusiast™s choice that unlocks Stage 2 potential, requiring bolt-on hardware like a downpipe to maximize the stock IS20 turbo. - Integrated Engineering - Audi Volkswagen

The enthusiast’s choice that unlocks Stage 2 potential, requiring bolt-on hardware like a downpipe to maximize the stock IS20 turbo. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5457564
Mfg#:
IESOVN15
In Stock
Starting at $179.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#3442749 - 1K0122101LA - Radiator Hose - Upper - Connects the upper radiator port to the water pump housing and transmission cooler - Rein - Audi Volkswagen

Connects the upper radiator port to the water pump housing and transmission cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For TSI engine models with a CBFA engine code and automatic transmission only

Brand:
Rein - Corporate Logo
ES#:
3442749
Mfg#:
1K0122101LA
In Stock
Limited Qty Sale
$97.91

This product was last offered at the strikethrough price on
05-11-2026

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brisk Silver Racing DR12S Spark Plug - Priced Each

ES#4017473 - DR12S - Brisk Silver Racing DR12S Spark Plug - Priced Each - Featuring silver fine wire center electrode - Superior ignition ability increases engine power! - Brisk - Audi Volkswagen Mercedes Benz MINI

Featuring silver fine wire center electrode - Superior ignition ability increases engine power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
One heat range colder than stock with a non-projected tip

Brand:
Brisk - Corporate Logo
ES#:
4017473
Mfg#:
DR12S
In Stock
8% off MSRP

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

$12.99

This product was last offered at the strikethrough price on
06-19-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Torqbyte VAG PM4 High Power FPCM MQB

ES#4418776 - PM4MQBFWD - Torqbyte VAG PM4 High Power FPCM MQB - Performance factory fuel pump module - CTS - Audi Volkswagen

Performance factory fuel pump module affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4418776
Mfg#:
PM4MQBFWD
Special Order: No Guaranteed ETA
$899.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Guide Rail - Lower

ES#281406 - 06H109469AQ - Timing Chain Guide Rail - Lower - Upper right rail on the small chain - Genuine Volkswagen Audi - Audi Volkswagen

Upper right rail on the small chain affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From production date 5/29/2009

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281406
Mfg#:
06H109469AQ
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.

$37.18

This product was last offered at the strikethrough price on
06-19-2026

$35.93 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Wiring Harness

ES#2084775 - 03L972619AM - Engine Wiring Harness - Complete harness for the engine - Genuine Volkswagen Audi - Audi Volkswagen

Complete harness for the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2011 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2084775
Mfg#:
03L972619AM
Ships in 1-2 days
6% off MSRP

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

$953.99

This product was last offered at the strikethrough price on
06-19-2026

$897.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#4766181 - 1K0965561J - Auxiliary Water Pump - Secondary pump for more efficient cooling - Bremmen Parts - Audi Volkswagen

Secondary pump for more efficient cooling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766181
Mfg#:
1K0965561J
Ships on Oct 26, 2026
Auto Notify
ON SALE! SAVE 16%
$117.99

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

$99.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#281430 - 06H121113B - Thermostat - Keep your cooling system efficient - Genuine Volkswagen Audi - Audi Volkswagen

Keep your cooling system efficient affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281430
Mfg#:
06H121113B
In Stock
ON SALE!
$115.00

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

$112.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IP High Performance Ignition Coil Set - 3.2L

ES#4389441 - IP-A121607 - IP High Performance Ignition Coil Set - 3.2L - 4X more spark energy than stock coils! - Ignition Projects - Audi Volkswagen

4X more spark energy than stock coils! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Ignition Projects - Corporate Logo
ES#:
4389441
Mfg#:
IP-A121607
Ships in 5 Business Days
$895.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#3181799 - 06J903133D - Accessory Belt Tensioner - Includes tensioner and roller to help keep your drive belt tight - Genuine Volkswagen Audi - Audi Volkswagen

Includes tensioner and roller to help keep your drive belt tight affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with TSI engines only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181799
Mfg#:
06J903133D
Ships in 1-2 days
7% off MSRP

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

$191.99

This product was last offered at the strikethrough price on
06-19-2026

$178.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#2642956 - N10268304 - Hex Bolt - Priced Each - Install new hardware with your new parts. M8x45 - Vaico - Audi Volkswagen

Install new hardware with your new parts. M8x45 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with FSI engines - Secures the belt tensioner to the engine

Brand:
Vaico - Corporate Logo
ES#:
2642956
Mfg#:
N10268304
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank & Washer Fluid Reservoir Cap Set - Black

ES#2804150 - 009635ECS02KT - Expansion Tank & Washer Fluid Reservoir Cap Set - Black - Dress up your engine bay with black expansion tank and washer reservoir caps to replace the old blue ones - Assembled By ECS - Audi Volkswagen

Dress up your engine bay with black expansion tank and washer reservoir caps to replace the old blue ones affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804150
Mfg#:
009635ECS02KT
In Stock
ON SALE! SAVE 37%
$48.98

This product was last offered at the strikethrough price on
01-03-2026

$30.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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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