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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Engine Sensors

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Innovate LC-2 Wideband O2 Controller Kit

ES#4809696 - 38770 - Innovate LC-2 Wideband O2 Controller Kit - Includes Lambda cable & 8-foot sensor cable. - Innovate Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Includes Lambda cable & 8-foot sensor cable.

Brand:
Innovate Motorsports - Corporate Logo
ES#:
4809696
Mfg#:
38770
In Stock at Vendor
$212.99 USD
Free Shipping
on orders $49 and up
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
$35.99

This product was last offered at the strikethrough price on
01-22-2026

$34.99 USD
Free Shipping
on orders $49 and up
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

Coolant Temperature Sensor - 2 Pin

ES#4745319 - 079919523J - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Vemo - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings

Brand:
Vemo - Corporate Logo
ES#:
4745319
Mfg#:
079919523J
In Stock at Vendor
$40.99

This product was last offered at the strikethrough price on
04-27-2026

$38.99 USD
Free Shipping
on orders $49 and up

Oxygen Sensor Socket - 22mm

ES#4490396 - 4680-1 - Oxygen Sensor Socket - 22mm - Properly remove stubborn o2 sensors. - Hazet - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Properly remove stubborn o2 sensors.

Brand:
Hazet - Corporate Logo
ES#:
4490396
Mfg#:
4680-1
Ships in 2 Business Days
$118.99

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

$115.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor - Priced Each

ES#3679591 - 06E906051AC - MAP Sensor - Priced Each - one located on both the charge pipe and inlet after the throttle body - Genuine Volkswagen Audi - Audi

one located on both the charge pipe and inlet after the throttle body For vehicles with production date from 10/15/2018

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3679591
Mfg#:
06E906051AC
Ships in 1-2 days
8% off MSRP

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

$180.00

This product was last offered at the strikethrough price on
07-21-2026

$164.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electrical Connector Kit - Housing With Pins & Wire Seals (3)

ES#4460528 - 1J0973723G-KIT - Electrical Connector Kit - Housing With Pins & Wire Seals (3) - Includes connector housing with terminals and seals. Great for an OE replacement or custom upgrades. - ECS - Audi Volkswagen

Includes connector housing with terminals and seals. Great for an OE replacement or custom upgrades. 10X Entries For Our 25th Anniversary Sweepstakes!
Please reference original part number from existing connector to confirm fitment, prior to ordering. *OEM

Brand:
ECS - Corporate Logo
ES#:
4460528
Mfg#:
1J0973723G-KIT
Ships in 9 Business Days
Auto Notify
ON SALE! SAVE 25%
$26.99

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

$20.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

TTE 4 Bar MAP Sensors - EA839 3.0T

ES#4658273 - TTE10434 - TTE 4 Bar MAP Sensors - EA839 3.0T - Plug directly into the OEM harness and are a direct drop-in replacement. - The Turbo Engineers - Audi

Plug directly into the OEM harness and are a direct drop-in replacement.

Brand:
The Turbo Engineers - Corporate Logo
ES#:
4658273
Mfg#:
TTE10434
Ships on Aug 7, 2026
$285.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Rear

ES#3607764 - 8W0906265AJ - Oxygen Sensor - Rear - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi

Keep your engine running efficiently

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3607764
Mfg#:
8W0906265AJ
Ships in 1-2 days
9% off MSRP

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

$303.99

This product was last offered at the strikethrough price on
07-21-2026

$277.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor Kit

ES#4818213 - 06m907601gKT - Camshaft Position Sensor Kit - Also referred to as the impulse sender - Genuine Volkswagen Audi - Audi

Also referred to as the impulse sender

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4818213
Mfg#:
06M907601GKT
Ships in 1-2 days
$138.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Coolant Temperature Sensor - 2 Pin

ES#3211792 - 06M919501 - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - Genuine Volkswagen Audi - Audi

Monitors coolant temperature for fan control & gauge readings

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3211792
Mfg#:
06M919501
Ships in 1-2 days
6% off MSRP

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

$50.00

This product was last offered at the strikethrough price on
07-21-2026

$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electrical Connector Kit - Housing With Pins & Wire Seals (3)

ES#4460523 - 3B0973703G-KIT - Electrical Connector Kit - Housing With Pins & Wire Seals (3) - Includes connector housing with terminals and seals. Great for an OE replacement or custom upgrades. - ECS - Audi Volkswagen

Includes connector housing with terminals and seals. Great for an OE replacement or custom upgrades. 10X Entries For Our 25th Anniversary Sweepstakes!
Please reference original part number from existing connector to confirm fitment, prior to ordering. *OEM

Brand:
ECS - Corporate Logo
ES#:
4460523
Mfg#:
3B0973703G-KIT
In Stock
ON SALE! SAVE 88%
$25.99

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

$3.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

Monitors coolant temperature for fan control & gauge readings

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
4690990
Mfg#:
06M919501
In Stock
ON SALE! SAVE 13%
$45.99

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

$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Wrench 3/8" drive

ES#2949705 - SLY88750B - Oxygen Sensor Wrench 3/8" drive - O2 Sensor Socket - Schley - Audi Volkswagen Mercedes Benz MINI

O2 Sensor Socket

Brand:
Schley - Corporate Logo
ES#:
2949705
Mfg#:
SLY88750B
Ships in 5 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch

ES#2697046 - 079919081D - Oil Pressure Switch - Senses low engine oil pressure - Genuine Volkswagen Audi - Audi

Senses low engine oil pressure

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2697046
Mfg#:
079919081D
Ships in 1-2 days
12% off MSRP

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

$32.99

This product was last offered at the strikethrough price on
07-21-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Sensors

Random check engine light got you down? It's probably a bad sensor! We have all the electrical sensors your engine needs to send information to your ECU so everything stays happy. Find it, fix it, and replace it with our OEM sensors or save some money with quality aftermarket sensors.

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Manufacturer names and/or part numbers are used only for identification purposes.

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