Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi A4 Engine Electrical Parts

Sort By
Filter By
Return to Top

Billet Drop-In Fuel Pump Upgrade Kit - Bosch Motorsport 044

ES#3419589 - 034-106-6014 - Billet Drop-In Fuel Pump Upgrade Kit - Bosch Motorsport 044 - Features Motorsport Bosch 044 fuel pump with billet 034 mounting bracket for a direct-fit. - 034Motorsport - Audi

Features Motorsport Bosch 044 fuel pump with billet 034 mounting bracket for a direct-fit.

Brand:
034Motorsport - Corporate Logo
ES#:
3419589
Mfg#:
034-106-6014
Ships in 2 Business Days
ON SALE! SAVE 10%
$526.00

This product was last offered at the strikethrough price on
08-17-2026

$473.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Pump

ES#4159245 - 079959231L - Secondary Air Injection Pump - Keep your engine running efficiently - Pierburg - Audi

Keep your engine running efficiently

Brand:
Pierburg - Corporate Logo
ES#:
4159245
Mfg#:
079959231L
Ships in 1-2 days
$745.99

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

$472.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Pump O-Ring

ES#2739735 - WHT005184 - High Pressure Fuel Pump O-Ring - Seals the high pressure fuel pump to the cylinder head - Elring - Audi Volkswagen

Seals the high pressure fuel pump to the cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2739735
Mfg#:
WHT005184
In Stock
ON SALE! SAVE 30%
$10.53

This product was last offered at the strikethrough price on
07-30-2026

$7.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTEK PRO25S

Advanced technology will ensure that a safe, fast charge is delivered to exactly meet the needs of the individual battery.

Brand:
CTEK - Corporate Logo
ES#:
4492944
Mfg#:
40-328
In Stock at Vendor
$468.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2678226 - 4H0951253A - Multipurpose Relay - Priced Each - Replacement 4-pin/30 amp relay - Bosch - Audi Volkswagen

Replacement 4-pin/30 amp relay 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2678226
Mfg#:
4H0951253A
In Stock
74% off MSRP

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

$27.30

This product was last offered at the strikethrough price on
03-16-2026

$7.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cloth Webbed Adhesive Tape - 10m

ES#10764 - 000979950 - Cloth Webbed Adhesive Tape - 10m - 19mm wide & 10m in length - Genuine Volkswagen Audi - Audi Volkswagen

19mm wide & 10m in length

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
10764
Mfg#:
000979950
Ships in 1-2 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.

$43.99

This product was last offered at the strikethrough price on
08-21-2026

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

Throttle Body Assembly - Priced Each

ES#3551556 - 079133062C - Throttle Body Assembly - Priced Each - Includes the throttle position sensor - Hudson - Audi Volkswagen

Includes the throttle position sensor

Brand:
Hudson - Corporate Logo
ES#:
3551556
Mfg#:
079133062C
Ships in 1-2 days
$464.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thin Wall Oxygen Sensor Socket

ES#4001177 - CTA2064 - Thin Wall Oxygen Sensor Socket - Out of space? Use this thin wall socket. - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Out of space? Use this thin wall socket.

Brand:
CTA Tools - Corporate Logo
ES#:
4001177
Mfg#:
CTA2064
In Stock
$17.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#2598610 - 06E906265S - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi

Keep your engine running efficiently 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits the left and right position

Brand:
Bosch - Corporate Logo
ES#:
2598610
Mfg#:
06E906265S
In Stock at Vendor
$239.99

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

$230.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#8541 - 059919501A - Coolant Temperature Sensor - Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head - Meyle - Audi Volkswagen

Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Located in the coolant flange

Brand:
Meyle - Corporate Logo
ES#:
8541
Mfg#:
059919501A
In Stock
$11.11

This product was last offered at the strikethrough price on
04-30-2026

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#1884502 - 4H0951253A - Multipurpose Relay - Priced Each - Replacement 4-pin/40 amp relay - Genuine Volkswagen Audi - Audi Volkswagen

Replacement 4-pin/40 amp relay

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1884502
Mfg#:
4H0951253A
Ships in 4 Business Days
10% off MSRP

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

$50.99

This product was last offered at the strikethrough price on
08-21-2026

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

Ignition Service Kit

ES#2918769 - 06l905110dkt - Ignition Service Kit - Includes four Genuine coil packs and NGK revision spark plugs - Genuine Volkswagen Audi - Audi

Includes four Genuine coil packs and NGK revision spark plugs

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2918769
Mfg#:
06L905110DKT
In Stock
$458.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor

ES#4504870 - 1J0907660F - Oil Level Sensor - Mounted on the bottom of the oil pan - Vemo - Audi Volkswagen

Mounted on the bottom of the oil pan From the 2003 model year

Brand:
Vemo - Corporate Logo
ES#:
4504870
Mfg#:
1J0907660F
In Stock at Vendor
$133.99

This product was last offered at the strikethrough price on
07-23-2026

$114.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Washer - Priced Each

ES#465962 - N01155813 - Washer - Priced Each - Install new hardware with your new parts. 8.4x15x1.6 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 8.4x15x1.6 Used in securing the alternator to the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465962
Mfg#:
N01155813
In Stock
$5.99 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.

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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings