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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Engine Electrical Parts

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Mass Air Flow Sensor (MAF)

ES#2812926 - 037906461C - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Hamburg Tech - Audi Volkswagen

Restore fuel economy and performance We Price Match - Give Us A Call or Chat!
From VIN 8D-W-080001, split is in the 1998 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812926
Mfg#:
037906461C
In Stock
Limited Qty Sale
$109.95

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

$94.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor Adapter Flange

ES#3137484 - 034-145-F015 - MAP Sensor Adapter Flange - MAP Sensor adapter flange for VW/Audi MAP sensors - Perfect for use when building your own intercooler plumbing - 034Motorsport - Audi Volkswagen

MAP Sensor adapter flange for VW/Audi MAP sensors - Perfect for use when building your own intercooler plumbing 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3137484
Mfg#:
034-145-F015
In Stock
$42.00 USD
Free Shipping
on orders $49 and up
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
11% 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
10-08-2026

$41.99 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
11% 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

$375.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Gasket

ES#271042 - 028129748 - Throttle Body Gasket - Seals the throttle body to the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Seals the throttle body to the intake manifold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271042
Mfg#:
028129748
In Stock
12% off MSRP

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

$16.99

This product was last offered at the strikethrough price on
10-08-2026

$14.99 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!
From VIN 8D-X-200001, split is in the 1999 model year. Please check current alternator for correct amps

Brand:
Valeo - Corporate Logo
ES#:
2725355
Mfg#:
038903018EX
Ships on Nov 3, 2026
$368.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#279618 - 06A905115D - Ignition Coil - Priced Each - Keep your engine running smooth - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running smooth

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279618
Mfg#:
06A905115D
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.

$52.98

This product was last offered at the strikethrough price on
10-08-2026

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coils - Set Of Four

ES#1494 - 06B998115R - Ignition Coils - Set Of Four - A common cure for misfire codes - Genuine Volkswagen Audi - Audi Volkswagen

A common cure for misfire codes

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1494
Mfg#:
06B998115R
Ships in 3 Business Days
$183.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor Connector Repair Kit

ES#3189499 - 645-924 - Mass Air Flow Sensor Connector Repair Kit - Contact housing for the MAF sensor - Dorman - Audi Volkswagen

Contact housing for the MAF sensor Engine codes ATW & AWM

Brand:
Dorman - Corporate Logo
ES#:
3189499
Mfg#:
645-924
In Stock
$22.99 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 Engine codes ATW & AWM from VIN 8D-Y-100001, 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

Boost Control Valve (N75)

ES#4858458 - 034-145-D006 - Boost Control Valve (N75) - An excellent stock replacement. - 034Motorsport - Audi Volkswagen

An excellent stock replacement. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4858458
Mfg#:
034-145-D006
Back Ordered
$180.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Relay - 372

ES#3971010 - 4D0951253 - Fuel Pump Relay - 372 - Keep the fuel pump going - Meyle - Audi

Keep the fuel pump going 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3971010
Mfg#:
4D0951253
Ships in 1-2 days
$51.99

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

$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 90 Amps

ES#5897 - AL9370kt - Remanufactured Alternator - 90 Amps - Includes a $50 refundable core charge - Bosch - Audi Volkswagen

Includes a $50 refundable core charge We Price Match - Give Us A Call or Chat!
Up to VIN 8D-X-199999, split is in the 1999 model year. Please check current alternator for correct amps

Brand:
Bosch - Corporate Logo
ES#:
5897
Mfg#:
AL9370KT
Back Ordered
$355.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#4818501 - 071957147 - Crankshaft Position Sensor - Also known as the RPM or speed sensor - Bremmen Parts - Audi Volkswagen

Also known as the RPM or speed sensor 10X Entries Into Our F80 M3 Sweepstakes

For Vehicles with Engine code AWM

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818501
Mfg#:
071957147
In Stock
ON SALE! SAVE 15%
$45.99

This product was last offered at the strikethrough price on
09-16-2026

$39.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 120 Amps

ES#4743262 - al0795xktKT1 - Remanufactured Alternator - 120 Amps - Includes core charge - Bosch - Audi

Includes core charge We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4743262
Mfg#:
AL0795XKTKT1
Back Ordered
$350.99 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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