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Audi B5 Engine Electrical Parts

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Alternator - 120 Amps

ES#259915 - 078903016H - Alternator - 120 Amps - Brand new, no core charge - Valeo - Audi

Brand new, no core charge We Price Match - Give Us A Call or Chat!
For cars that came with Valeo alternators. Please check existing alternator part number before ordering

Brand:
Valeo - Corporate Logo
ES#:
259915
Mfg#:
078903016H
Back Ordered
$400.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit - Stage 2

ES#2730878 - 09356KT2 - Ignition Service Kit - Stage 2 - Includes Bosch plug wires, Bosch spark plugs, and a Prenco ignition coil - Assembled By ECS - Audi

Includes Bosch plug wires, Bosch spark plugs, and a Prenco ignition coil 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2730878
Mfg#:
09356KT2
Back Ordered
ON SALE!
$417.99

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

$400.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

GENIUS 2 Bank 6V / 12V 4 Amp Battery Charger - NOCO

ES#4364628 - GENIUS2X2 - GENIUS 2 Bank 6V / 12V 4 Amp Battery Charger - NOCO - A two-bank battery charger, battery maintainer, trickle charger, and battery desulfator - the perfect all-in-one solution for battery maintenance. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A two-bank battery charger, battery maintainer, trickle charger, and battery desulfator - the perfect all-in-one solution for battery maintenance.

Brand:
NOCO - Corporate Logo
ES#:
4364628
Mfg#:
GENIUS2X2
In Stock
20% off MSRP

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

$124.99

This product was last offered at the strikethrough price on
09-13-2026

$99.99 USD
Free Shipping
on orders $49 and up

Mass Air Flow Sensor (MAF)

ES#4941247 - 077133471K - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Holstein - Audi

Restore fuel economy and performance

Brand:
Holstein - Corporate Logo
ES#:
4941247
Mfg#:
077133471K
Ships in 2 Business Days
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Four

ES#593 - FR7LDC+/4 - Spark Plugs - Set Of Four - Keep your engine running strong. - Bosch - Audi Volkswagen

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

Brand:
Bosch - Corporate Logo
ES#:
593
Mfg#:
FR7LDC+/4
In Stock
$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor O-Ring

ES#2953981 - 038103196 - Oil Level Sensor O-Ring - Seals oil level sensor to the oil pan - URO - Audi Volkswagen

Seals oil level sensor to the oil pan 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2953981
Mfg#:
038103196
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Voltage Regulator

ES#280125 - 06B903803B - Voltage Regulator - Located on the rear of the alternator - Genuine Volkswagen Audi - Audi Volkswagen

Located on the rear of the alternator For 90 amp alternators from VIN 8D-X-200001, split is in the 1999 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280125
Mfg#:
06B903803B
Ships in 7 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.

$420.99

This product was last offered at the strikethrough price on
08-31-2026

$390.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Precision Raceworks Ethanol Sensor Breakout Harness

ES#4858864 - 201-0411 - Precision Raceworks Ethanol Sensor Breakout Harness - This breakout harness isolates the signal wire from your flex fuel sensor, allowing an external gauge to access the signal without modifying your existing flex fuel harness. - Precision Raceworks - Audi BMW Volkswagen

This breakout harness isolates the signal wire from your flex fuel sensor, allowing an external gauge to access the signal without modifying your existing flex fuel harness.

Brand:
Precision Raceworks - Corporate Logo
ES#:
4858864
Mfg#:
201-0411
In Stock
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Connector Housing - Female Connector

ES#4303 - 1J0973775A - Mass Air Flow Connector Housing - Female Connector - Contact housing for the MAF sensor - Genuine Volkswagen Audi - Audi Volkswagen

Contact housing for the MAF sensor Engine codes ATW & AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4303
Mfg#:
1J0973775A
In Stock
25% off MSRP

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

$15.99

This product was last offered at the strikethrough price on
08-12-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Pump

ES#2816564 - 95560560101 - Secondary Air Injection Pump - Keep your engine running efficiently - Hamburg Tech - Audi Volkswagen Porsche

Keep your engine running efficiently We Price Match - Give Us A Call or Chat!
For vehicles from VIN 8D-Y-100,001, split is in the 2000 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816564
Mfg#:
95560560101
Ships in 2 Business Days
$185.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Control Unit - Priced Each

ES#2795802 - 4A0905351A - Ignition Control Unit - Priced Each - Cure misfires and clear the check engine light - Hamburg Tech - Audi

Cure misfires and clear the check engine light We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2795802
Mfg#:
4A0905351A
Ships in 2 Business Days
$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator - 90 Amps

ES#2725355 - 038903018EX - Alternator - 90 Amps - Keep your charging system running properly - Valeo - Audi Volkswagen

Keep your charging system running properly We Price Match - Give Us A Call or Chat!
For cars with Bosch style 90 amp alternators. Please check current part number before ordering.

Brand:
Valeo - Corporate Logo
ES#:
2725355
Mfg#:
038903018EX
Back Ordered
$368.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#516390 - 4H0951253 - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Genuine Volkswagen Audi - Audi Volkswagen

Replacement 4 pin relay

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
516390
Mfg#:
4H0951253
In Stock
13% 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
08-31-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Pump

ES#1876813 - 06A959253B - Secondary Air Injection Pump - Keep your engine running efficiently - MTC - Audi Volkswagen

Keep your engine running efficiently For vehicles from VIN 8D-Y-100,001, split is in the 2000 model year

Brand:
MTC - Corporate Logo
ES#:
1876813
Mfg#:
06A959253B
Ships in 10 Business Days
$366.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#2538550 - 06B905115EKT - Ignition Service Kit - Includes four OE coil packs and four OE spark plugs - Genuine Volkswagen Audi - Audi Volkswagen

Includes four OE coil packs and four OE spark plugs For vehicles with ATW engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2538550
Mfg#:
06B905115EKT
Ships in 3 Business Days
$364.99 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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