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Audi B5 S4 2.7T Engine Electrical Parts

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ES#4810341 - 56-926 - Lithium US 4.3 Amp 12 Volt Battery Charger - CTEK - The LITHIUM US is a versatile, microprocessor-controlled charger designed for recharging and maintaining Lithium-Iron (LiFePO4) batteries, featuring automatic operation, and multiple safety protections. - CTEK - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The LITHIUM US is a versatile, microprocessor-controlled charger designed for recharging and maintaining Lithium-Iron (LiFePO4) batteries, featuring automatic operation, and multiple safety protections. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTEK - Corporate Logo
ES#:
4810341
Mfg#:
56-926
Back Ordered
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2873369 - 06A919081J - Oil Pressure Switch - black - Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR - Febi - Audi Volkswagen

Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR 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#:
2873369
Mfg#:
06A919081J
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4039716 - 079133062C - Throttle Body Assembly - Priced Each - Includes the throttle position sensor - Vemo - Audi Volkswagen

Includes the throttle position sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
4039716
Mfg#:
079133062C
In Stock
Limited Qty Sale
$837.53

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

$651.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2447 - 058905379 - Air Temperature Sensor - Measures the temperature of the air entering the engine - Bosch - Audi Volkswagen

Measures the temperature of the air entering the engine 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:
Bosch - Corporate Logo
ES#:
2447
Mfg#:
058905379
In Stock
$38.99

This product was last offered at the strikethrough price on
03-30-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#576 - PFR6QS4 - Spark Plugs - Set Of Six - Featuring a laser platinum resistor - NGK - Audi

Featuring a laser platinum resistor 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#:
576
Mfg#:
PFR6QS4
In Stock
$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4045936 - B5255LPFP - JHM Fuel Pump Upgrade Kit - High-Flow 255 LPH w/ Drop-In Adapter - Drop in kit to work in conjunction with your factory fuel system - JH Motorsports  - Audi

Drop in kit to work in conjunction with your factory fuel system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports  - Corporate Logo
ES#:
4045936
Mfg#:
B5255LPFP
Ships in 2 Business Days
$314.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4389648 - GBX45 - Boost X UltraSafe Lithium 1250 Amp Jump Starter - NOCO - X for Extreme - Boost X is the next generation in jump packs with an all-new design and more powerful jump starts. This 12V battery jumper will jump gas vehicles up to 6.5 and diesel engines up to 4.0L. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

X for Extreme - Boost X is the next generation in jump packs with an all-new design and more powerful jump starts. This 12V battery jumper will jump gas vehicles up to 6.5 and diesel engines up to 4.0L. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4389648
Mfg#:
GBX45
Ships in 8 Business Days
22% off MSRP

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

$159.99

This product was last offered at the strikethrough price on
07-03-2026

$124.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3419777 - 034-106-A003 - FP34 Fuel Pump Surge Tank - With Pump  - Fully enclosed FP34 fuel pump surge tank with Bosch 044 "Motorsport" fuel pump - 034Motorsport - Audi Volkswagen

Fully enclosed FP34 fuel pump surge tank with Bosch 044 "Motorsport" fuel pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3419777
Mfg#:
034-106-A003
Back Ordered
ON SALE! SAVE 10%
$690.00

This product was last offered at the strikethrough price on
06-28-2026

$621.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4111 - 5304 - Denso Spark Plugs - Priced Each - Stock #5304, Plug #IK20, Iridium plugs - Denso - Audi Volkswagen

Stock #5304, Plug #IK20, Iridium plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Denso - Corporate Logo
ES#:
4111
Mfg#:
5304
In Stock
$8.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4492945 - 40-327 - CTEK PRO25SE - The PRO25SE is an innovative, versatile, and highly efficient 25A battery charger and power supply. - CTEK - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The PRO25SE is an innovative, versatile, and highly efficient 25A battery charger and power supply. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTEK - Corporate Logo
ES#:
4492945
Mfg#:
40-327
In Stock at Vendor
$604.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4346391 - GENIUSPRO25 - GENIUS PRO 6V / 12V / 24V 25 Amp Battery Charger - NOCO - Similar to the G15000, just more powerful. With the greatest performance and functionality yet, it's a world-class battery charger to let professionals push the limits at incredible charging speeds. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Similar to the G15000, just more powerful. With the greatest performance and functionality yet, it's a world-class battery charger to let professionals push the limits at incredible charging speeds. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4346391
Mfg#:
GENIUSPRO25
Ships in 8 Business Days
20% off MSRP

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

$749.99

This product was last offered at the strikethrough price on
07-03-2026

$599.99 USD
Free Shipping
on orders $49 and up
ES#3604640 - EL-28606 - Battery Disconnect Switch - 6 Pole W/ Removable Key - Quickly shut down your battery in an emergency. - Rennline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Quickly shut down your battery in an emergency. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
3604640
Mfg#:
EL-28606
In Stock
$59.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#8037 - 058998105 - Ignition Coils - Set Of Six - A common cure for misfire codes - Beru - Audi

A common cure for misfire codes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Beru - Corporate Logo
ES#:
8037
Mfg#:
058998105
Ships in 1 Business Day
$331.99

This product was last offered at the strikethrough price on
04-09-2026

$293.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3006397 - 216EVOOT.F - EVO Series Digital Oil Temperature Gauge - 100-300F - Digital oil temperature gauge with dimmable red or blue backlighting - Prosport Performance - Audi BMW Volkswagen MINI

Digital oil temperature gauge with dimmable red or blue backlighting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3006397
Mfg#:
216EVOOT.F
Ships in 1 Business Day
$78.99 USD
Free Shipping
ES#2623216 - 059919501A - Coolant Temperature Sensor - Green coolant temp sensor, located commonly in the cooling flange near the head - Vemo - Audi Volkswagen

Green coolant temp sensor, located commonly in the cooling flange near the head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2623216
Mfg#:
059919501A
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#11920 - 1J0973705 - Mass Air Flow Connector Housing - Female Connector - Contact housing for the MAF sensor - Genuine Volkswagen Audi - Audi

Contact housing for the MAF sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from the 2001 model year for vehicles with Hitachi style MAF

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
11920
Mfg#:
1J0973705
In Stock
7% off MSRP

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

$26.99

This product was last offered at the strikethrough price on
07-03-2026

$24.99 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.

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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