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Audi B5 A4 FWD 1.8T

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Audi B5 A4 FWD 1.8T Engine Electrical Parts

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Secondary Air Injection Pump

Keep your engine running efficiently 10X Entries Into Our F80 M3 Sweepstakes
Engine codes ATW & AWM from VIN 8D-Y-100001, split is in the 2000 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
5491634
Mfg#:
06A959253E
Ships on Nov 10, 2026
ON SALE! SAVE 10%
$159.99

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

$143.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#3970962 - 165906381 - Multipurpose Relay - Priced Each - Electronic control module relay - Meyle - Audi Volkswagen

Electronic control module relay 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8D-X-200001, split is in the 1999 model year

Brand:
Meyle - Corporate Logo
ES#:
3970962
Mfg#:
165906381
Ships on Nov 13, 2026
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - Green Connector

ES#4487635 - 054905377A - Knock Sensor - Green Connector - Detects engine ping for timing adjustment - Meyle - Audi Volkswagen

Detects engine ping for timing adjustment 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Please check connector color before ordering

Brand:
Meyle - Corporate Logo
ES#:
4487635
Mfg#:
054905377A
Ships on Nov 13, 2026
$43.99

This product was last offered at the strikethrough price on
10-06-2026

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi - Engine/Transmission management

ES#4900524 - 021906265AG - Audi - Engine/Transmission management - Meyle - Audi Volkswagen

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4900524
Mfg#:
021906265AG
Ships on Nov 13, 2026
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - Green Connector

ES#4900598 - 07D905377 - Knock Sensor - Green Connector - Detects engine ping for timing adjustment - Meyle - Audi Volkswagen

Detects engine ping for timing adjustment 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4900598
Mfg#:
07D905377
Ships on Nov 13, 2026
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - Blue Connector - Priced Each

ES#4487634 - 054905377G - Knock Sensor - Blue Connector - Priced Each - Detects engine ping for timing adjustment - Meyle - Audi Volkswagen

Detects engine ping for timing adjustment 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4487634
Mfg#:
054905377G
Ships on Nov 13, 2026
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuse Box Relay Plate

ES#3970913 - 8L0941822A - Fuse Box Relay Plate - The portion of the fuse box that accepts the relays - Meyle - Audi Volkswagen

The portion of the fuse box that accepts the relays 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Meyle - Corporate Logo
ES#:
3970913
Mfg#:
8L0941822A
Ships on Nov 13, 2026
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump

ES#2643003 - 8D0906089A - Fuel Pump - Located inside the fuel tank - Meyle - Audi

Located inside the fuel tank 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
2643003
Mfg#:
8D0906089A
Ships on Nov 13, 2026
$143.99 USD
Free Shipping
on orders $49 and up

Starter - Remanufactured

ES#4625 - SR0421kt - Starter - Remanufactured - Price includes a $120.99 core charge, see learn more - Bosch - Audi Volkswagen

Price includes a $120.99 core charge, see learn more We Price Match - Give Us A Call or Chat!
From Vin 8D-W-230000

Brand:
Bosch - Corporate Logo
ES#:
4625
Mfg#:
SR0421KT
Ships on Nov 17, 2026
$300.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 120 Amp

Price includes a $101.4 refundable core charge

Brand:
Bosch - Corporate Logo
ES#:
5506418
Mfg#:
038903018FXBKT
Ships on Nov 17, 2026
$407.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Modules

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

Brand:
VDO - Corporate Logo
ES#:
4415148
Mfg#:
8D0906089A
Special Order: No Guaranteed ETA
$269.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Elring - Corporate Logo
ES#:
5340675
Mfg#:
N90316802
Special Order: No Guaranteed ETA
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Gasket

Located between the union nut and the fuel tank 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Elring - Corporate Logo
ES#:
5340912
Mfg#:
1J0919133
Special Order: No Guaranteed ETA
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#4040034 - 058905105 - Ignition Coil - Priced Each - Includes the spark plug boot - Hella - Audi Volkswagen

Includes the spark plug boot

Brand:
Hella - Corporate Logo
ES#:
4040034
Mfg#:
058905105
Special Order: No Guaranteed ETA
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body

ES#2866222 - 06B133062B - Throttle Body - Febi - Audi Volkswagen

We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2866222
Mfg#:
06B133062B
Special Order: No Guaranteed ETA
$227.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 4 Pin

<font color='blue'>Blue</font> sensor with square connector. Please check existing sensor color - 078919501B Up to VIN 8D-X-500000, split is in the 1999 model year

Brand:
Refak - Corporate Logo
ES#:
3143185
Mfg#:
078919501B
Special Order: No Guaranteed ETA
$4.99 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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