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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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Crankshaft Position Sensor

ES#2550892 - 050906433 - Crankshaft Position Sensor - Also known as the RPM or speed sensor - Facet - Audi Volkswagen

Also known as the RPM or speed sensor

Brand:
Facet - Corporate Logo
ES#:
2550892
Mfg#:
050906433
Ships in 3 Business Days
$39.99

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

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Temperature Sensor

ES#277731 - 058905379 - Air Temperature Sensor - Measures the temperature of the air entering the engine - Genuine Volkswagen Audi - Audi Volkswagen

Measures the temperature of the air entering the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277731
Mfg#:
058905379
Ships in 3 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.

$121.99

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

$113.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#2642898 - 050906433B - Crankshaft Position Sensor - Also known as the RPM or speed sensor - Vemo - Audi

Also known as the RPM or speed sensor For vehicles with AEB or ATW engine codes only.

Brand:
Vemo - Corporate Logo
ES#:
2642898
Mfg#:
050906433B
In Stock
Limited Qty Sale
$108.99

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

$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Hose - Outlet

ES#2918547 - 058133817D - Secondary Air Injection Hose - Outlet - Connects the secondary air pump to the metal pipe - Vaico Q+ - Audi Volkswagen

Connects the secondary air pump to the metal pipe Engine codes ATW & AWM

Brand:
Vaico Q+ - Corporate Logo
ES#:
2918547
Mfg#:
058133817D
Ships in 1-2 days
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Shouldered Nut - Priced Each

ES#259786 - N90175205 - Shouldered Nut - Priced Each - Install new hardware with your new parts. M6 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6 Secures the leak detection pump bracket to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
259786
Mfg#:
N90175205
Ships in 2 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley

ES#275298 - 038903119K - Alternator Pulley - Does not include securing hardware - Genuine Volkswagen Audi - Audi Volkswagen

Does not include securing hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275298
Mfg#:
038903119K
In Stock
ON SALE!
$107.99

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

$106.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Nut - Priced Each

ES#252222 - N01100840 - Hex Nut - Priced Each - Install new hardware with your new parts. M8 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
252222
Mfg#:
N01100840
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2801195 - 8E0951253 - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Meistersatz - Audi Volkswagen

Replacement 4 pin relay

Brand:
Meistersatz - Corporate Logo
ES#:
2801195
Mfg#:
8E0951253
In Stock at Vendor
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp - Priced Each

ES#257625 - N90107203 - Hose Clamp - Priced Each - Ensure a leak free installation. 8-12x8x0.4 - Genuine Volkswagen Audi - Audi

Ensure a leak free installation. 8-12x8x0.4 Secures vacuum lines to the N75 valve

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
257625
Mfg#:
N90107203
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hall Sender - Priced Each

ES#2812980 - 058905161B - Hall Sender - Priced Each - Measures cam position and relays it to the ECU - Hamburg Tech - Audi Volkswagen

Measures cam position and relays it to the ECU We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812980
Mfg#:
058905161B
Ships in 1 Business Day
$95.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Priced Each

ES#4069842 - 101000063AA - Spark Plug - Priced Each - Keep your engine running strong - Bosch FR-7-KPP-33+ - Bosch - Audi Volkswagen

Keep your engine running strong - Bosch FR-7-KPP-33+ We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4069842
Mfg#:
101000063AA
In Stock at Vendor
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#2996236

Coil Pack Harness Replacement

ES#3082311 - 012211ecs01KT - Coil Pack Harness Replacement - Replace faulty coil pack wiring to keep your vehicle operating properly - ECS - Audi Volkswagen

Replace faulty coil pack wiring to keep your vehicle operating properly
Fits models with ATW & AWM engine codes only

Brand:
ECS - Corporate Logo
ES#:
3082311
Mfg#:
012211ECS01KT
In Stock
ON SALE! SAVE 25%
$126.99

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

$95.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#465681 - N01021533 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x15 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x15 Engine code ATW. Secures the secondary air pump bracket to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465681
Mfg#:
N01021533
In Stock
3% off MSRP

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

$3.38

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

$3.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#258812 - 058905105 - Ignition Coil - Priced Each - Does not include the spark plug boot - Genuine Volkswagen Audi - Audi Volkswagen

Does not include the spark plug boot

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
258812
Mfg#:
058905105
In Stock
ON SALE! SAVE 42%
$157.99

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

$92.23 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Relay - 372

ES#2899179 - 4D0951253 - Fuel Pump Relay - 372 - Keep the fuel pump going - Vemo - Audi Volkswagen

Keep the fuel pump going

Brand:
Vemo - Corporate Logo
ES#:
2899179
Mfg#:
4D0951253
Special Order: No Guaranteed ETA
$91.99 USD
Free Shipping
on orders $49 and up

Ignition Coil

ES#3200316 - 078905104A - Ignition Coil - Keep your engine running strong - URO - Audi Volkswagen

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

Brand:
URO - Corporate Logo
ES#:
3200316
Mfg#:
078905104A
Back Ordered
$90.40 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.

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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