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Audi B6 A4 Quattro V6 30v

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Audi B6 A4 Quattro V6 30v Engine Covers & Accessories

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Coolant Expansion Tank Cap

ES#3485290 - 2Q0121321A - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen Porsche

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3485290
Mfg#:
2Q0121321A
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.

$42.99

This product was last offered at the strikethrough price on
02-26-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECU Cover

ES#442064 - 8E1907613D - ECU Cover - Top cover for the engine control module housing - Genuine Volkswagen Audi - Audi

Top cover for the engine control module housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
442064
Mfg#:
8E1907613D
Ships in 1 day
10% off MSRP

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

$123.99

This product was last offered at the strikethrough price on
02-26-2026

$110.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Belly Pan Installation Hardware Kit

ES#2587686 - 8D0805121KT - Front Belly Pan Installation Hardware Kit - Includes required hardware to secure the front belly pan - Assembled By ECS - Audi

Includes required hardware to secure the front belly pan 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#:
2587686
Mfg#:
8D0805121KT
In Stock
ON SALE! SAVE 24%
$164.99

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

$125.07 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Speed Nut - Priced Each

ES#2623238 - 8D0805960 - Speed Nut - Priced Each - Fits silver colored screws with attached washer - Vaico - Audi Volkswagen

Fits silver colored screws with attached washer affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Used in securing the belly pan to the vehicle

Brand:
Vaico - Corporate Logo
ES#:
2623238
Mfg#:
8D0805960
In Stock at Vendor
$5.99

This product was last offered at the strikethrough price on
06-01-2026

$4.99 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

$30.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Coolant Expansion Tank Cap

ES#4858532 - 2Q0121321A - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Bremmen Parts - Audi Volkswagen Porsche

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4858532
Mfg#:
2Q0121321A
In Stock
ON SALE! SAVE 22%
$19.99

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

$15.50 USD
Free Shipping
on orders $49 and up

ECU Housing

ES#442062 - 8E1907355C - ECU Housing - Keep your ECU protected - Genuine Volkswagen Audi - Audi

Keep your ECU protected affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
442062
Mfg#:
8E1907355C
Ships in 2 Business Days
11% off MSRP

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

$221.99

This product was last offered at the strikethrough price on
02-26-2026

$197.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Belly Pan

ES#2499506 - 8E0863821AL - Front Belly Pan - Keep your engine protected - Bremmen Parts - Audi

Keep your engine protected affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
2499506
Mfg#:
8E0863821AL
Ships in 8 Business Days
Auto Notify
ON SALE! SAVE 20%
$197.99

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

$158.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap - Black

ES#3690266 - 5Q0121321 - Expansion Tank Cap - Black - Keep proper pressure in your coolant system - Vaico - Audi Volkswagen Porsche

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3690266
Mfg#:
5Q0121321
Ships on Sep 28, 2026
$18.99

This product was last offered at the strikethrough price on
04-02-2026

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Speed Nut - Priced Each

ES#1597683 - 8D0805960 - Speed Nut - Priced Each - Fits silver colored screws with attached washers - Genuine Volkswagen Audi - Audi Volkswagen

Fits silver colored screws with attached washers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used in securing the belly pan to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1597683
Mfg#:
8D0805960
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.

$9.62

This product was last offered at the strikethrough price on
06-03-2026

$9.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Belly Pan Installation Hardware Kit

ES#3184623 - 8D0805960121kt - Front Belly Pan Installation Hardware Kit - Includes required hardware to secure your front Belly Pan - Assembled By ECS - Audi Volkswagen

Includes required hardware to secure your front Belly Pan 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#:
3184623
Mfg#:
8D0805960121KT
In Stock
ON SALE! SAVE 24%
$230.99

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

$174.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Washer Fluid Reservoir Cap

ES#261694 - 1K0955455 - Washer Fluid Reservoir Cap - Keep your washer fluid free from debris - Genuine Volkswagen Audi - Audi Volkswagen

Keep your washer fluid free from debris affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261694
Mfg#:
1K0955455
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.

$21.99

This product was last offered at the strikethrough price on
06-03-2026

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Engine Oil Cap - Clear Anodized

ES#4030547 - 022735ecs0102AKT - Billet Engine Oil Cap - Clear Anodized - Lose the plastic! - ECS - Audi Volkswagen

Lose the plastic! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4030547
Mfg#:
022735ECS0102AKT
In Stock
ON SALE! SAVE 15%
$110.99

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

$94.33 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap Seal

ES#302264 - 1H0121687A - Expansion Tank Cap Seal - Seals the expansion tank cap to the reservoir. 28.5x3.8 - Genuine Volkswagen Audi - Audi Volkswagen

Seals the expansion tank cap to the reservoir. 28.5x3.8 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
302264
Mfg#:
1H0121687A
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belly Pan & Installation Hardware Kit

ES#2702651 - 8E0863821ALKT1 - Belly Pan & Installation Hardware Kit - Includes a replacement belly pan with all necessary mounting hardware - Genuine Volkswagen Audi - Audi

Includes a replacement belly pan with all necessary mounting hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2702651
Mfg#:
8E0863821ALKT1
Ships in 1 day
$658.99

This product was last offered at the strikethrough price on
02-26-2026

$647.99 USD
This product is lifetime replacement eligible Lifetime Replacement

shouldered Plastic Nut - Priced Each

ES#438230 - 8E0825265C - shouldered Plastic Nut - Priced Each - Install new hardware with your new parts. - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the plastic underbody linings to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
438230
Mfg#:
8E0825265C
In Stock
25% off MSRP

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

$3.99

This product was last offered at the strikethrough price on
06-03-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Covers & Accessories

Engine covers are more than styling statements. They keep moisture, road salt, and debris from damaging your engine, battery, and other underhood components. Engine covers also help protect hoses and wiring harnesses from rodents.

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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