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Audi B5 S4 2.7T

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Audi B5 S4 2.7T Engine Electrical Parts

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CTEK D250SE

With award-winning Swedish technology, the dual input D250SE allows you to enjoy your vehicle more

Brand:
CTEK - Corporate Logo
ES#:
4492942
Mfg#:
40-315
In Stock
Limited Qty Sale
$569.99

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

$515.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#3190125 - 907-764 - Crankshaft Position Sensor - Also known as the RPM or speed sensor - Dorman - Audi Volkswagen

Also known as the RPM or speed sensor Manual transmission models

Brand:
Dorman - Corporate Logo
ES#:
3190125
Mfg#:
907-764
Ships in 4 Business Days
$76.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Control Unit - Priced Each

ES#3521177 - 4A0905351A - Ignition Control Unit - Priced Each - Cure misfires and clear the check engine light - Holstein - Audi

Cure misfires and clear the check engine light

Brand:
Holstein - Corporate Logo
ES#:
3521177
Mfg#:
4A0905351A
Ships in 1 Business Day
$149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

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 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

Oil Pressure Switch - Black

ES#5457350 - 06A919081A - Oil Pressure Switch - Black - Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR - URO - Audi Volkswagen

Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
5457350
Mfg#:
06A919081A
Ships in 1 Business Day
$5.99 USD

Ignition Coil - Priced Each

ES#2894739 - 058905105 - Ignition Coil - Priced Each - Includes the spark plug boot - Vemo - Audi Volkswagen

Includes the spark plug boot

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

Air Temperature Sensor

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

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

Ignition Coil - Priced Each

Includes the spark plug boot

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

A/C Pressure Safety Switch

Prevents excess pressure from building within the system

Brand:
Four Seasons - Corporate Logo
ES#:
4142139
Mfg#:
8D0959482B
In Stock at Vendor
$171.99

This product was last offered at the strikethrough price on
04-27-2026

$162.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Battery Mount Kit - Odyssey 925

Securely mount an Odyssey battery in your Audi

Brand:
Rennline - Corporate Logo
ES#:
2839920
Mfg#:
EL4235
Ships in 5 Business Days
$149.00 USD
Free Shipping
on orders $49 and up

Battery Mount Kit - Odyssey 680

Securely mount an Odyssey battery in your Audi

Brand:
Rennline - Corporate Logo
ES#:
2839921
Mfg#:
EL4237
Ships in 5 Business Days
$149.00 USD
Free Shipping
on orders $49 and up

Rennline Universal Battery Mount Kit Odyssey 680

Switch, remote pull, and battery are not included with this or any of the kits.

Brand:
Rennline - Corporate Logo
ES#:
2839917
Mfg#:
EL4137
Ships in 5 Business Days
$149.00 USD
Free Shipping
on orders $49 and up

Battery Mount Kit - Odyssey 680 - With Switch Mount

Securely mount an Odyssey battery in your Audi and add provisions for a switch

Brand:
Rennline - Corporate Logo
ES#:
2839922
Mfg#:
EL4238
Ships in 5 Business Days
$159.00 USD
Free Shipping
on orders $49 and up

Battery Mount Kit - Odyssey 925 - With Switch Mount

Securely mount an Odyssey battery in your Audi and add provisions for a switch

Brand:
Rennline - Corporate Logo
ES#:
2839919
Mfg#:
EL4234
Ships in 5 Business Days
$159.00 USD
Free Shipping
on orders $49 and up

Ignition Coil - Priced Each

Includes the spark plug boot

Brand:
SMP - Corporate Logo
ES#:
4142131
Mfg#:
058905105
In Stock at Vendor
$44.99

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve (N249) - Priced Each

Controls actuation of the Combi Valve or Diverter Valve

Brand:
SMP - Corporate Logo
ES#:
4142136
Mfg#:
026906283J
In Stock at Vendor
$306.99

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

$293.99 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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