Call Us330-331-2003 ChatLive Chat Text Us!
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle

Audi S4 Engine Electrical Parts

Sort By
Filter By
Return to Top
ES#516390 - 4H0951253 - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Genuine Volkswagen Audi - Audi Volkswagen

Replacement 4 pin relay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
516390
Mfg#:
4H0951253
Ships in 3 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.

$46.99

This product was last offered at the strikethrough price on
06-08-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4031173 - GENIUS2 - GENIUS 6V / 12V 2 Amp Battery Charger - NOCO - The GENIUS2 is similar to the G1100, just better. It's 30% smaller and delivers 140% more power. And it's simpler and easier to use than ever before. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The GENIUS2 is similar to the G1100, just better. It's 30% smaller and delivers 140% more power. And it's simpler and easier to use than ever before. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4031173
Mfg#:
GENIUS2
In Stock
23% off MSRP

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

$64.95

This product was last offered at the strikethrough price on
06-08-2026

$49.94 USD
Free Shipping
on orders $49 and up
ES#2017505 - BKR6EQUA - Spark Plug - Priced Each  - BKR6EQUA NGK - NGK - Audi Volkswagen

BKR6EQUA NGK affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
2017505
Mfg#:
BKR6EQUA
In Stock
$9.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#283052 - 077905115T - Ignition Coil - Priced Each - Keep your engine running smooth - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283052
Mfg#:
077905115T
In Stock
Limited Qty Sale
$98.99

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

$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2664704 - 078133073J - Throttle Body Gasket - priced each - Seals the throttle body to the intake manifold - Genuine Volkswagen Audi - Audi

Seals the throttle body to the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2664704
Mfg#:
078133073J
In Stock
4% off MSRP

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

$27.99

This product was last offered at the strikethrough price on
06-08-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3437888 - 078905377 - Knock Sensor - Brown Connector - Priced Each  - Detects engine ping for timing adjustment - Facet - Audi

Detects engine ping for timing adjustment affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8D-X-260001, split is in the 1999 model year

Brand:
Facet - Corporate Logo
ES#:
3437888
Mfg#:
078905377
In Stock at Vendor
$48.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2774540 - 06H903803E - Voltage Regulator - Located on the rear of the alternator - Genuine Volkswagen Audi - Audi

Located on the rear of the alternator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Bosch style alternators from the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2774540
Mfg#:
06H903803E
Ships in 1-2 days
9% off MSRP

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

$263.99

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

$240.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2949705 - SLY88750B - Oxygen Sensor Wrench 3/8" drive - O2 Sensor Socket - Schley - Audi Volkswagen Mercedes Benz MINI

O2 Sensor Socket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Schley - Corporate Logo
ES#:
2949705
Mfg#:
SLY88750B
Ships in 5 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4475371 - CTS-IGN-007-6KT - CTS High Performance Ignition Coil - Red - Set of Six - These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at its peak performance. - CTS - Audi

These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at it’s peak performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4475371
Mfg#:
CTS-IGN-007-6KT
Ships in 3 Business Days
$239.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#283065 - 077905381F - Crankshaft Position Sensor - Referred to as the speed sensor & reference sensor - Genuine Volkswagen Audi - Audi

Referred to as the speed sensor & reference sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283065
Mfg#:
077905381F
Ships in 3 Business 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.

$256.67

This product was last offered at the strikethrough price on
06-08-2026

$238.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3709117 - 8K0906253N - Leak Detection Pump - Tests the fueling system for leaks - Genuine Volkswagen Audi - Audi

Tests the fueling system for leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3709117
Mfg#:
8K0906253N
Ships in 4 Business Days
8% off MSRP

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

$258.99

This product was last offered at the strikethrough price on
06-08-2026

$236.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4846426 - VWR900003-6KT - RacingLine Higher Output Ignition Coils - Red - Set of Six - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4846426
Mfg#:
VWR900003-6KT
In Stock
$236.04 USD
Free Shipping
on orders $49 and up
ES#2594298 - 4A0905351A - Ignition Control Unit - Priced Each - Cure misfires and clear the check engine light - Huco - Audi

Cure misfires and clear the check engine light affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Huco - Corporate Logo
ES#:
2594298
Mfg#:
4A0905351A
Back Ordered
$117.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#279782 - 06A906433C - Crankshaft Position Sensor - Also known as the RPM or speed sensor - Genuine Volkswagen Audi - Audi Volkswagen

Also known as the RPM or speed sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Manual transmission models

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279782
Mfg#:
06A906433C
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.

$251.99

This product was last offered at the strikethrough price on
06-08-2026

$234.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#440851 - 8E0919673AT - Fuel Level Sensor - Right - Informs the instrument cluster of the tank's fuel level - Genuine Volkswagen Audi - Audi

Informs the instrument cluster of the tank's fuel level affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8E-6-265 831 - Split is in the 2006 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
440851
Mfg#:
8E0919673AT
Ships in 4 Business Days
9% off MSRP

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

$256.99

This product was last offered at the strikethrough price on
06-08-2026

$234.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Informs the instrument cluster of the tank's fuel level affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8E-6-265 831 - Split is in the 2006 model year

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
4057653
Mfg#:
8E0919673AT
Back Ordered
$241.99

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

$234.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Electrical Parts

With automotive electrical content growing yearly, it has never been more important to keep your charging and electrical system in top working condition. ECS Tuning stocks a huge and constantly growing inventory of electrical sensors, electric motors, and electronic actuators from original equipment and name-brand aftermarket suppliers.

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.

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