A failed knock sensor can cause major performance issues
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:
ES#:
34423
Mfg#:
13627566786
In Stock
9% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$173.99
This product was last offered at the strikethrough price on 10-25-2026
OEM Bosch Downstream O2 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 We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4316418
Mfg#:
11788631049
Ships in 2 Business Days
$154.99
This product was last offered at the strikethrough price on 05-07-2026
Replace your faulty sensor to restore engine performance and fuel economy
2X 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!
N54 N55 N20 Direct-fit OE replacement design restores proper oxygen sensor function and engine air/fuel mixture
2X 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!
Fuel control and emissions control 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
Brand:
ES#:
4465193
Mfg#:
11788611294
Ships in 3 Business Days
$142.99
This product was last offered at the strikethrough price on 05-07-2026
Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.
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:
ES#:
4772597
Mfg#:
61132359999
In Stock
ON SALE!
SAVE 25%
$10.99
This product was last offered at the strikethrough price on 06-13-2026
Located on the side of the engine block.
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:
ES#:
4871941
Mfg#:
13627580635
In Stock
ON SALE!
SAVE 21%
$26.99
This product was last offered at the strikethrough price on 05-02-2026
550mm. Rear O2 sensor/Lambda probe
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 7/2013 production date
Brand:
ES#:
2706967
Mfg#:
11787645875
Ships in 1-2 days
13% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$325.99
This product was last offered at the strikethrough price on 10-25-2026
Used to seal sensor to the oil pan
2X 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:
ES#:
3478331
Mfg#:
12611744292
In Stock
$11.71
This product was last offered at the strikethrough price on 07-08-2026
550mm. Rear O2 sensor/Lambda probe
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 7/2013 production date
Brand:
ES#:
4820838
Mfg#:
11787645875
Ships in 2 Business Days
$93.99
This product was last offered at the strikethrough price on 05-07-2026
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.
Lifetime Replacement
