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Audi A4 Engine Electrical Parts

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Coolant Temperature Sensor

ES#2972929 - 059919501AKT2 - Coolant Temperature Sensor - Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head - Hamburg Tech - Audi Volkswagen

Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head We Price Match - Give Us A Call or Chat!
Located in the coolant flange

Brand:
Hamburg Tech - Corporate Logo
ES#:
2972929
Mfg#:
059919501AKT2
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2613 - 078906265G - Oxygen Sensor - Priced Each - Keep your engine running efficiently, restore MPG, and clear check engine lights - Bosch - Audi

Keep your engine running efficiently, restore MPG, and clear check engine lights We Price Match - Give Us A Call or Chat!
For engine code AHA, fits right rear position

Brand:
Bosch - Corporate Logo
ES#:
2613
Mfg#:
078906265G
In Stock at Vendor
$164.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Speed Sensor - Priced Each

ES#12047 - 078905381A - Engine Speed Sensor - Priced Each - Also known as the RPM sensor - Original Equipment Supplier - Audi

Also known as the RPM sensor

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
12047
Mfg#:
078905381A
Ships in 1-2 days
$163.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coils - Set Of Four

ES#252896 - 06B998115E - Ignition Coils - Set Of Four - A common cure for misfire codes - Karlyn - Audi Volkswagen

A common cure for misfire codes

Brand:
Karlyn - Corporate Logo
ES#:
252896
Mfg#:
06B998115E
Ships on Sep 9, 2026
$163.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

LK-2M 2 Pin Connector Package

ES#4875873 - LK2M - LK-2M 2 Pin Connector Package - Includes connector housing with terminals and seals. Bosch style connector used in various positions on the cars. - ECS - Audi BMW Volkswagen MINI Porsche

Includes connector housing with terminals and seals. Bosch style connector used in various positions on the cars.

Brand:
ECS - Corporate Logo
ES#:
4875873
Mfg#:
LK2M
In Stock
ON SALE! SAVE 29%
$6.99

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

$4.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil

ES#2866471 - 078905104 - Ignition Coil - Keep your engine running strong - Febi - Audi Volkswagen

Keep your engine running strong We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2866471
Mfg#:
078905104
Ships on Oct 20, 2026
Auto Notify
$162.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Voltage Regulator

ES#4849592 - 038903803E - Voltage Regulator - Maintains a constant voltage level by controlling the alternator's output. - Vemo - Audi Volkswagen

Maintains a constant voltage level by controlling the alternator's output. For Bosch style alternators

Brand:
Vemo - Corporate Logo
ES#:
4849592
Mfg#:
038903803E
In Stock at Vendor
$54.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#3419389 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - Rein - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3419389
Mfg#:
N90316802
In Stock
$2.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2612 - 078906265F - Oxygen Sensor - Priced Each - Keep your engine running efficiently, restore MPG, and clear check engine lights - Bosch - Audi Volkswagen

Keep your engine running efficiently, restore MPG, and clear check engine lights We Price Match - Give Us A Call or Chat!
For engine code AHA, fits left rear position

Brand:
Bosch - Corporate Logo
ES#:
2612
Mfg#:
078906265F
Ships in 1-2 days
$160.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Pump O-Ring

ES#4342380 - 03C127311 - High Pressure Fuel Pump O-Ring - Seals the high pressure fuel pump to the cylinder head - Febi - Audi Volkswagen

Seals the high pressure fuel pump to the cylinder head We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4342380
Mfg#:
03C127311
Ships on Sep 18, 2026
Auto Notify
$7.99

This product was last offered at the strikethrough price on
03-23-2026

$4.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump

ES#2816307 - 8D0906089A - Fuel Pump - Located inside the fuel tank - Hamburg Tech - Audi

Located inside the fuel tank We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816307
Mfg#:
8D0906089A
Ships in 1 Business Day
$159.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor

ES#2765390 - 038906051 - MAP Sensor - Measures pressure in the intake system (large design MAP sensor) - Vemo - Audi Volkswagen

Measures pressure in the intake system (large design MAP sensor)

Brand:
Vemo - Corporate Logo
ES#:
2765390
Mfg#:
038906051
In Stock at Vendor
$163.99

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

$159.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#3419351 - 06A906433G - Crankshaft Position Sensor - Also known as the RPM or Impulse sensor. - Delphi - Audi Volkswagen

Also known as the RPM or Impulse sensor.

Brand:
Delphi - Corporate Logo
ES#:
3419351
Mfg#:
06A906433G
Ships in 1 Business Day
$39.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor

ES#4030970 - 030905377D - Knock Sensor - Detects engine knock and changes timing accordingly (Sensor only) - Genuine Volkswagen Audi - Audi Volkswagen

Detects engine knock and changes timing accordingly (Sensor only)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4030970
Mfg#:
030905377D
Ships in 1-2 days
6% off MSRP

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

$169.99

This product was last offered at the strikethrough price on
08-22-2026

$158.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuse Box

ES#433794 - 8D1941824 - Fuse Box - In-dash fuse box - Genuine Volkswagen Audi - Audi Volkswagen

In-dash fuse box

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
433794
Mfg#:
8D1941824
Ships in 2 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.

$173.99

This product was last offered at the strikethrough price on
08-22-2026

$158.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - Green Connector

ES#277140 - 054905377A - Knock Sensor - Green Connector - Detects engine ping for timing adjustment - Genuine Volkswagen Audi - Audi Volkswagen

Detects engine ping for timing adjustment

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277140
Mfg#:
054905377A
Ships in 7 Business Days
6% off MSRP

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

$169.99

This product was last offered at the strikethrough price on
08-22-2026

$158.99 USD
Free Shipping
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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