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Audi B9 A5 Quattro 2.0T Cabriolet

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Audi B9 A5 Quattro 2.0T Cabriolet Engine Covers & Accessories

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Audi B9 A4/A5 ECU Cover - Matte Black

ES#3739793 - 028799ECS01 - Audi B9 A4/A5 ECU Cover - Matte Black - Compliment your engine bay and hide away the exposed ECU - ECS - Audi

Compliment your engine bay and hide away the exposed ECU 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3739793
Mfg#:
028799ECS01
In Stock
ON SALE! SAVE 25%
$103.99

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

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Oil Filler Cap

ES#3188198 - VWR19G702 - VWR Billet Oil Filler Cap - Replace the factory plastic cap with this sturdy aluminum one in gloss midnight black anodizing - Racingline - Audi Volkswagen Porsche

Replace the factory plastic cap with this sturdy aluminum one in gloss midnight black anodizing For vehicles up through the 2020 model year only

Brand:
Racingline - Corporate Logo
ES#:
3188198
Mfg#:
VWR19G702
Ships in 8 Business Days
$103.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cap

ES#4172030 - 06K103485C - Oil Cap - Clean up your engine bay with a new engine oil fill cap - Rein - Audi Volkswagen Porsche

Clean up your engine bay with a new engine oil fill cap 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles up through the 2020 model year only

Brand:
Rein - Corporate Logo
ES#:
4172030
Mfg#:
06K103485C
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Brake Fluid Cap

ES#4040602 - VWR19G707 - VWR Billet Brake Fluid Cap - Replace your brake fluid reservoir cap for improved pressure equalization and stunning appearance. - Racingline - Audi Volkswagen

Replace your brake fluid reservoir cap for improved pressure equalization and stunning appearance.

Brand:
Racingline - Corporate Logo
ES#:
4040602
Mfg#:
VWR19G707
In Stock
$103.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber ECU Cover - Audi B9 A4/A5

ES#3136956 - 019468ECS01A - Carbon Fiber ECU Cover - Audi B9 A4/A5 - Compliment your engine bay and hide away the exposed ECU - ECS - Audi

Compliment your engine bay and hide away the exposed ECU 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3136956
Mfg#:
019468ECS01A
In Stock
ON SALE! SAVE 15%
$214.99

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

$182.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Porsche 911 Expansion Tank Cap

ES#3496004 - 99110645702 - Porsche 911 Expansion Tank Cap - Black and satin aluminum colored coolant cap from the Porsche 991. - Genuine Porsche - Audi Volkswagen Porsche

Black and satin aluminum colored coolant cap from the Porsche 991.

Brand:
Genuine Porsche - Corporate Logo
ES#:
3496004
Mfg#:
99110645702
In Stock
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Engine Cover Overlay

ES#3426555 - 022526ecs01KT - Carbon Fiber Engine Cover Overlay - Add a touch of carbon fiber to your stock engine cover! - ECS - Audi

Add a touch of carbon fiber to your stock engine cover! 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with production dates up to 03/22/2021

Brand:
ECS - Corporate Logo
ES#:
3426555
Mfg#:
022526ECS01KT
In Stock
ON SALE! SAVE 15%
$262.99

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

$223.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Oil Filler Cap

ES#4447031 - VWR190002 - VWR Billet Oil Filler Cap - Replace the factory plastic cap with this sturdy aluminum one in gloss midnight black anodizing - Racingline - Audi Volkswagen

Replace the factory plastic cap with this sturdy aluminum one in gloss midnight black anodizing For vehicles from the 2021 model year only.

Brand:
Racingline - Corporate Logo
ES#:
4447031
Mfg#:
VWR190002
In Stock
$103.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Billet Oil Cap

ES#4681105 - 034-110-Z014 - 034Motorsport Billet Oil Cap - Machined from 6061-T6 aluminum and anodized bright black for lifelong great looks! - 034Motorsport - Audi Volkswagen Porsche

Machined from 6061-T6 aluminum and anodized bright black for lifelong great looks! For vehicles up through the 2020 model year only

Brand:
034Motorsport - Corporate Logo
ES#:
4681105
Mfg#:
034-110-Z014
In Stock
$97.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Coolant Reservoir Cap - Black Anodized

ES#3509688 - 022731ECS01-01 - Billet Coolant Reservoir Cap - Black Anodized - Lose the plastic! - ECS - Audi

Lose the plastic! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3509688
Mfg#:
022731ECS01-01
Ships on Dec 10, 2026
$96.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Oil Cap - Red

ES#4165020 - VTT-VAG-OILCAPR - Billet Oil Cap - Red - Billet aluminum oil cap to spice up your engine bay. - Vargas Turbo Technologies - Audi Volkswagen Porsche

Billet aluminum oil cap to spice up your engine bay. 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles up through the 2020 model year only

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4165020
Mfg#:
VTT-VAG-OILCAPR
In Stock
$62.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Washer Fluid Reservoir Cap - Black Anodized

ES#3194626 - 022732ECS01-01 - Billet Washer Fluid Reservoir Cap - Black Anodized - Lose the plastic! - ECS - Audi

Lose the plastic! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3194626
Mfg#:
022732ECS01-01
In Stock
ON SALE!
$86.99

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

$82.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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 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

VTT VAG Billet One Way Crankcase Breather - Tall

ES#4370482 - VTT-VAG-CC-BTR-L - VTT VAG Billet One Way Crankcase Breather - Tall - First of it's kind for VW/Audi/Porsche vehicles! - Vargas Turbo Technologies - Audi Volkswagen Porsche

First of it's kind for VW/Audi/Porsche vehicles! 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles up through the 2020 model year only

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4370482
Mfg#:
VTT-VAG-CC-BTR-L
Ships on Aug 17, 2026
$156.99 USD
Free Shipping
on orders $49 and up
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 We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3690266
Mfg#:
5Q0121321
Ships in 1-2 days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Billet Oil Cap

ES#4745412 - 034-110-Z015 - 034Motorsport Billet Oil Cap - Transform your engine bay with the beautiful and sexy 034Motorsport Billet Oil Cap. - 034Motorsport - Audi Volkswagen

Transform your engine bay with the beautiful and sexy 034Motorsport Billet Oil Cap. For vehicles from the 2021 model year only.

Brand:
034Motorsport - Corporate Logo
ES#:
4745412
Mfg#:
034-110-Z015
In Stock
$99.00 USD
Free Shipping

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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings