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Audi B5 Engine Parts & Accessories

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Cooling System Refresh Kit - Level 2

ES#2608135 - 030121121BKT3 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Engine codes AEB & ATW from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608135
Mfg#:
030121121BKT3
Ships in 1 Business Day
ON SALE!
$165.99

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

$152.15 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

2.0T Coil Pack Conversion Kit - Stage 1

ES#2731572 - 002598ECS25KT - 2.0T Coil Pack Conversion Kit - Stage 1 - Includes wrinkle red conversion plate and stainless still hardware - ECS - Audi Volkswagen

Includes wrinkle red conversion plate and stainless still hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits ATW & AWM engine code models only

Brand:
ECS - Corporate Logo
ES#:
2731572
Mfg#:
002598ECS25KT
In Stock
ON SALE! SAVE 10%
$168.99

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

$152.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Phenolic Intake Manifold Spacer - Transition Port

ES#4029539 - 034-108-9003TP - Phenolic Intake Manifold Spacer - Transition Port - Includes 16 longer high grade bolts and 4 gaskets, everything you need to convert. - 034Motorsport - Audi

Includes 16 longer high grade bolts and 4 gaskets, everything you need to convert. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For installing the RS4 intake manifold with 2.7T heads

Brand:
034Motorsport - Corporate Logo
ES#:
4029539
Mfg#:
034-108-9003TP
In Stock
$152.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Snub Mount - Black Series

ES#4871802 - PFF3-220BLK - Performance Snub Mount - Black Series - Put your power to the ground! - Powerflex Black Series - Audi Volkswagen

Put your power to the ground! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex Black Series - Corporate Logo
ES#:
4871802
Mfg#:
PFF3-220BLK
Ships in 1 Business Day
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter Gasket

ES#270997 - 028115441C - Oil Filter Adapter Gasket - Seals the oil filter adapter to the engine block - Genuine Volkswagen Audi - Audi Volkswagen

Seals the oil filter adapter to the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine codes AEB & ATW

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
270997
Mfg#:
028115441C
Ships in 1-2 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
06-20-2026

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

Auxiliary Fan Assembly

ES#3981182 - 4Z7959455 - Auxiliary Fan Assembly - Larger diameter fan on the left side - NRF B.V. - Audi

Larger diameter fan on the left side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NRF B.V. - Corporate Logo
ES#:
3981182
Mfg#:
4Z7959455
Ships in 1-2 days
$155.99

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

$150.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Installation Kit

ES#2586591 - 06B133555HAWMKT - Fuel Injector Installation Kit - Includes everything required to replace the fuel injectors - Genuine Volkswagen Audi - Audi

Includes everything required to replace the fuel injectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2586591
Mfg#:
06B133555HAWMKT
Ships on Oct 1, 2026
Auto Notify
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Supply Line - Left

ES#3638768 - 078145777B - Oil Supply Line - Left - Connects the oil distributor to the turbocharger - Original Equipment Supplier - Audi

Connects the oil distributor to the turbocharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Manual Transmissions only

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
3638768
Mfg#:
078145777B
Back Ordered
$153.99

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

$149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - Blue Connector - Priced Each

ES#2162503 - 06C905377 - Knock Sensor - Blue Connector - Priced Each - Detects engine ping for timing adjustment - Continental - Audi Volkswagen

Detects engine ping for timing adjustment affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2162503
Mfg#:
06C905377
Ships in 1-2 days
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#4818441 - 06B121058S - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water pipe - Bremmen Parts - Audi Volkswagen

Connects the oil cooler to the hard water pipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818441
Mfg#:
06B121058S
In Stock
ON SALE! SAVE 27%
$8.99

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

$6.52 USD
Free Shipping
on orders $49 and up

1.8T Launch Control

Upgrade your tune with Launch Control affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Only to be purchased in conjunction with another tune

Brand:
Tunezilla - Corporate Logo
ES#:
4172090
Mfg#:
18T-20V-UPD
Ships in 7 Business Days
$149.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Drivetrain Mount Kit

ES#2587252 - 8D0399151RKT3 - Drivetrain Mount Kit - Includes both engine and transmission mounts with hardware - Assembled By ECS - Audi Volkswagen

Includes both engine and transmission mounts with hardware 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#:
2587252
Mfg#:
8D0399151RKT3
Ships in 3 Business Days
$148.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Allen Bolt - Priced Each

ES#466521 - N01474011 - Allen Bolt - Priced Each - Install new hardware with your new parts. M6x16 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x16 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the air temperature sensor to the intake manifold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466521
Mfg#:
N01474011
In Stock
5% off MSRP

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

$3.06

This product was last offered at the strikethrough price on
06-20-2026

$2.91 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2865688 - 030121121B - Thermostat Housing - Located on the water pump assembly - Febi - Audi Volkswagen

Located on the water pump assembly 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!

Brand:
Febi - Corporate Logo
ES#:
2865688
Mfg#:
030121121B
In Stock
$9.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Voltage Regulator

ES#2575153 - 038903803EX - Remanufactured Voltage Regulator - Includes a $10 refundable core charge - Genuine Volkswagen Audi - Audi Volkswagen

Includes a $10 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 120 amp alternators from VIN 8D-X-200001, split is in the 1999 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2575153
Mfg#:
038903803EX
Ships in 5 Business Days
$146.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#2872396 - 8D0121055G - Radiator Hose - Lower - Connects the lower radiator port to the water pump & reservoir - Febi - Audi Volkswagen

Connects the lower radiator port to the water pump & reservoir 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!
Up to VIN 8D-Y-120000, split is in the 2000 model year

Brand:
Febi - Corporate Logo
ES#:
2872396
Mfg#:
8D0121055G
In Stock at Vendor
$49.99

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

$48.99 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

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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