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Audi B8/B8.5 S4 Quattro 3.0T

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Audi B8/B8.5 S4 Quattro 3.0T Engine Sensors

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CTS Turbo B5 S4 MAF Housing 85mm (HITACHI)

ES#2862954 - CTSHW040 - CTS Turbo B5 S4 MAF Housing 85mm (HITACHI) - Designed for cars running RS4 or larger turbochargers with upgraded software, and upgraded fuel injectors. - CTS - Audi

Designed for cars running RS4 or larger turbochargers with upgraded software, and upgraded fuel injectors. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
CTS - Corporate Logo
ES#:
2862954
Mfg#:
CTSHW040
Ships in 8 Business Days
ON SALE! SAVE 15%
$129.99

This product was last offered at the strikethrough price on
09-29-2026

$110.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft/Camshaft Position Sensor

Also known as the RPM or Impulse sensor. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From the 2013 model year

Brand:
Hitachi - Corporate Logo
ES#:
5396932
Mfg#:
059906433K
Ships in 7 Business Days
$104.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#3520868 - 07L905163A - Camshaft Position Sensor - Located in the cylinder head - Holstein - Audi Volkswagen

Located in the cylinder head Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Holstein - Corporate Logo
ES#:
3520868
Mfg#:
07L905163A
In Stock at Vendor
$23.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor O-Ring

ES#3624718 - 038103196B - Oil Level Sensor O-Ring - Seals the oil level sensor on the oil pan - MTC - Audi Volkswagen

Seals the oil level sensor on the oil pan Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
MTC - Corporate Logo
ES#:
3624718
Mfg#:
038103196B
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sensor Retaining Clip - Priced Each

ES#4940095 - 032121142 - Sensor Retaining Clip - Priced Each - Used for ECS 2.0T boost taps - Bremmen Parts - Audi Volkswagen

Used for ECS 2.0T boost taps 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940095
Mfg#:
032121142
In Stock
ON SALE! SAVE 50%
$1.99

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

$0.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#4057465 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - Victor Reinz - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Victor Reinz - Corporate Logo
ES#:
4057465
Mfg#:
N90316802
Ships in 3 Business Days
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor

Manifold absolute pressure sensor, lets your ECU know how much air pressure is in your intake manifold Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Located on the rear of the supercharger

Brand:
Facet - Corporate Logo
ES#:
4135624
Mfg#:
03C906051F
Ships in 2 Business Days
$78.99

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

$76.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - Grey Connector

ES#2678227 - 06E905376B - Knock Sensor - Grey Connector - Detects engine ping for timing adjustment - FAE - Audi

Detects engine ping for timing adjustment Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For cylinders 4-6

Brand:
FAE - Corporate Logo
ES#:
2678227
Mfg#:
06E905376B
Ships in 2 Business Days
$74.99

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

$71.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Knock Sensor - Grey Connector

ES#4135458 - 06E905376B - Knock Sensor - Grey Connector - Detects engine ping for timing adjustment - Facet - Audi

Detects engine ping for timing adjustment Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For cylinders 4-6

Brand:
Facet - Corporate Logo
ES#:
4135458
Mfg#:
06E905376B
Ships in 2 Business Days
$74.99

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

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dual Drive Oxygen Sensor Wrench

ES#2944218 - LIS12390 - Dual Drive Oxygen Sensor Wrench - Tool comes with both 1/2" and 3/8" drive. - Lisle - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tool comes with both 1/2" and 3/8" drive. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Lisle - Corporate Logo
ES#:
2944218
Mfg#:
LIS12390
Ships in 7 Business Days
$59.99 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 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Schley - Corporate Logo
ES#:
2949705
Mfg#:
SLY88750B
Ships on Nov 12, 2026
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Green Knock Sensor With Harness - 465mm

ES#4135454 - 06E905376A - Green Knock Sensor With Harness - 465mm - Detects engine ping for timing adjustment, 465mm length with green connector - Facet - Audi Volkswagen

Detects engine ping for timing adjustment, 465mm length with green connector Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For cylinders 1-3

Brand:
Facet - Corporate Logo
ES#:
4135454
Mfg#:
06E905376A
Back Ordered
$57.99

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

VW | Sensor, crankshaft pulse

ES#4853644 - 059906433K - VW | Sensor, crankshaft pulse - Vemo - Audi

Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Vemo - Corporate Logo
ES#:
4853644
Mfg#:
059906433K
Ships in 2 Business Days
$56.99

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

$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Pressure Switch

ES#4901122 - 5Q0959126B - A/C Pressure Switch - A/C Pressure Sensor Restore proper A/C compressor operation and keep your cabin cool. - Meyle - Audi Volkswagen

A/C Pressure Sensor Restore proper A/C compressor operation and keep your cabin cool. 5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4901122
Mfg#:
5Q0959126B
Ships on Jan 15, 2027
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Green Knock Sensor With Harness - 465mm

ES#4135457 - 06E905376A - Green Knock Sensor With Harness - 465mm - Detects engine ping for timing adjustment, 465mm length with green connector - Holstein - Audi Volkswagen

Detects engine ping for timing adjustment, 465mm length with green connector Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For cylinders 1-3

Brand:
Holstein - Corporate Logo
ES#:
4135457
Mfg#:
06E905376A
Ships in 2 Business Days
$40.99

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

VW | Sensor, crankshaft pulse

ES#4853643 - 059906433C - VW | Sensor, crankshaft pulse - Vemo - Audi

Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Vemo - Corporate Logo
ES#:
4853643
Mfg#:
059906433C
Ships in 2 Business Days
$44.99

This product was last offered at the strikethrough price on
06-20-2026

$34.05 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.

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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