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Audi S4 Engine Electrical Parts

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ES#3521742 - 078906433F - Crankshaft Position Sensor - Also know as the RPM Reference sensor or Impulse Sender - Holstein - Audi

Also know as the RPM Reference sensor or Impulse Sender affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Automatic transmission models

Brand:
Holstein - Corporate Logo
ES#:
3521742
Mfg#:
078906433F
Ships in 1 Business Day
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4940214 - M127KT - Rennline OE+ Upgraded Ignition Coil - Set Of 6	 - Regain power loss & fuel economy from worn or failed ignition coils! - Rennline - Audi

Regain power loss & fuel economy from worn or failed ignition coils! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
4940214
Mfg#:
M127KT
Ships in 5 Business Days
$270.00 USD
Free Shipping
on orders $49 and up
ES#2894889 - 06E905163 - Camshaft Impulse Sensor - Priced Each - Keep your engine running strong - Vemo - Audi

Keep your engine running strong affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Left side cam position sensor

Brand:
Vemo - Corporate Logo
ES#:
2894889
Mfg#:
06E905163
In Stock at Vendor
$56.99

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

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2894739 - 058905105 - Ignition Coil - Priced Each - Includes the spark plug boot - Vemo - Audi Volkswagen

Includes the spark plug boot affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2894739
Mfg#:
058905105
In Stock at Vendor
$70.99

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

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#9437 - 078905375 - Reference Sensor - Ignition Timing Sensor - Vemo - Audi

Ignition Timing Sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
9437
Mfg#:
078905375
In Stock at Vendor
$117.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2894741 - 058905379 - Air Temperature Sensor - Measures the temperature of the air entering the engine - Vemo - Audi Volkswagen Porsche

Measures the temperature of the air entering the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2894741
Mfg#:
058905379
In Stock at Vendor
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Also referred to as the impulse sender 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#:
4818216
Mfg#:
06M907601DKT
In Stock at Vendor
ON SALE! SAVE 10%
$112.99

This product was last offered at the strikethrough price on
04-11-2026

$102.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Replace your level sensor with new bolts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 02/05/2024

Brand:
Assembled By ECS - Corporate Logo
ES#:
4818155
Mfg#:
079907660A2KT
In Stock at Vendor
ON SALE!
$160.99

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

$152.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Don't let your car sit dead! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4812519
Mfg#:
06M911021
In Stock at Vendor
$553.99

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

$537.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Manifold absolute pressure sensor, lets your ECU know how much air pressure is in your intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Located on the rear of the supercharger

Brand:
Delphi - Corporate Logo
ES#:
4135574
Mfg#:
03C906051F
In Stock at Vendor
$111.99

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

$108.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Includes the spark plug boot affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Delphi - Corporate Logo
ES#:
4142130
Mfg#:
058905105
In Stock at Vendor
$50.99

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

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Detects engine ping for timing adjustment, 465mm length with green connector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For cylinders 1-3

Brand:
Facet - Corporate Logo
ES#:
5447075
Mfg#:
06E905377J
In Stock at Vendor
$51.99

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

$49.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Prevents excess pressure from building within the system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Four Seasons - Corporate Logo
ES#:
4142139
Mfg#:
8D0959482B
In Stock at Vendor
$175.99

This product was last offered at the strikethrough price on
01-17-2026

$165.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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

Brand:
Hitachi - Corporate Logo
ES#:
5396959
Mfg#:
077905381F
Ships in 6 Business Days
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Also known as the RPM or Impulse sensor. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Hitachi - Corporate Logo
ES#:
5396932
Mfg#:
059906433K
Ships in 6 Business Days
$104.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Keep your engine running strong affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Left side cam position sensor

Brand:
Hitachi - Corporate Logo
ES#:
5397125
Mfg#:
06E905163
Ships in 6 Business Days
$17.99 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.

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