Beat-a-Price Guarantee - You Find It, We'll Beat It!

Beat-a-Price Guarantee - You Find It, We'll Beat It!

Save Now on Select Stock Replacement Parts!

Filters

  • In Stock
  • Make/Model
  • Make/Engine
  • Engine VIN Code

    Show All

  • Price Range
  • In Stock
  • Savings Central

Selected Filters

Filter Results by Vehicle

Loading...

Availability

  • Filters

  • Make/Model
  • Make/Engine
  • Engine VIN Code

    Show All

  • Price Range
  • Savings Central
Holstein

Holstein Parts Knock Sensors

4.0 out of 5 stars 3 Customer Reviews

The knock sensor is able to detect mechanical stress and produces a voltage when the car knocks or pings. Under heavy acceleration, it sends signals to the ECU and
The knock sensor is able to detect mechanical stress and produces a voltage when the car knocks or pings. Under heavy acceleration, it sends signals to the ECU and the ECU retards the ignition timing to compensate for the knocking, which in effect protects the pistons and rings from damage. Knocking also occurs when using low-grade fuel and having the knock sensor allows you to use different grade fuels without causing engine damage. Holstein Parts focuses on using only the highest quality materials, manufactured to exacting standards for an aftermarket product that is truly built to match or exceed the OE part. Hols
The knock sensor is able to detect mechanical stress and produces a voltage when the car knocks or pings. Under heavy acceleration, it sends signals to the ECU and the ECU retards the ignition timing to compensate for the knocking, which in effect protects the pistons and rings from damage. Knocking also occurs when using low-grade fuel and having the knock sensor allows you to use different grade fuels without causing engine damage. Holstein Parts focuses on using only the highest quality materials, manufactured to exacting standards for an aftermarket product that is truly built to match or exceed the OE part. Holstein Parts knock sensors line has superior coverage for domestic and import applications.

Showing In Stock Items. Show All 115 Items.

Results 1 - 25 of 114

Holstein Parts Knock Sensors 2KNC0025KIT

Holstein Parts Knock Sensors 2KNC0025KIT

Holstein Parts Knock Sensors 2KNC0025KIT

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0025KIT

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors 2KNC0025

Holstein Parts Knock Sensors 2KNC0025

Holstein Parts Knock Sensors 2KNC0025

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0025

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors 2KNC0135

Holstein Parts Knock Sensors 2KNC0135

Holstein Parts Knock Sensors 2KNC0135

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0135

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0031

Holstein Parts Knock Sensors 2KNC0031

Holstein Parts Knock Sensors 2KNC0031

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0031

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0021

Holstein Parts Knock Sensors 2KNC0021

Holstein Parts Knock Sensors 2KNC0021

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0021

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors for 2006-2011 CIVIC, 2006-2009 S2000 - 2KNC0075

Holstein Parts Knock Sensors for 2006-2011 CIVIC, 2006-2009 S2000 - 2KNC0075

Holstein Parts Knock Sensors for 2006-2011 CIVIC, 2006-2009 S2000 - 2KNC0075

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0075

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors for 2002-2006 RSX - 2KNC0040

Holstein Parts Knock Sensors for 2002-2006 RSX - 2KNC0040

Holstein Parts Knock Sensors for 2002-2006 RSX - 2KNC0040

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0040

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors for 1995 928 - 2KNC0008

Holstein Parts Knock Sensors for 1995 928 - 2KNC0008

Holstein Parts Knock Sensors for 1995 928 - 2KNC0008

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0008

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 23, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0130

Holstein Parts Knock Sensors 2KNC0130

Holstein Parts Knock Sensors 2KNC0130

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0130

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 22, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0199

Holstein Parts Knock Sensors 2KNC0199

Holstein Parts Knock Sensors 2KNC0199

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0199

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 23, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0006

Holstein Parts Knock Sensors 2KNC0006

Holstein Parts Knock Sensors 2KNC0006

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0006

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0029

Holstein Parts Knock Sensors 2KNC0029

Holstein Parts Knock Sensors 2KNC0029

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0029

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors 2KNC0156

Holstein Parts Knock Sensors 2KNC0156

Holstein Parts Knock Sensors 2KNC0156

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0156

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors 2KNC0220

Holstein Parts Knock Sensors 2KNC0220

Holstein Parts Knock Sensors 2KNC0220

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0220

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors for 2000-2005 S2000 - 2KNC0078

Holstein Parts Knock Sensors for 2000-2005 S2000 - 2KNC0078

Holstein Parts Knock Sensors for 2000-2005 S2000 - 2KNC0078

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0078

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0003

Holstein Parts Knock Sensors 2KNC0003

Holstein Parts Knock Sensors 2KNC0003

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0003

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors for 2001-2005 ACCENT, 2001-2003 ELANTRA, 2003 TIBURON - 2KNC0068

Holstein Parts Knock Sensors for 2001-2005 ACCENT, 2001-2003 ELANTRA, 2003 TIBURON - 2KNC0068

Holstein Parts Knock Sensors for 2001-2005 ACCENT, 2001-2003 ELANTRA, 2003 TIBURON - 2KNC0068

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0068

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 23, 2026 if ordered today

Holstein Parts Knock Sensors for 2003-2008 6 - 2KNC0291

Holstein Parts Knock Sensors for 2003-2008 6 - 2KNC0291

Holstein Parts Knock Sensors for 2003-2008 6 - 2KNC0291

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0291

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 26, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0085

Holstein Parts Knock Sensors 2KNC0085

Holstein Parts Knock Sensors 2KNC0085

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0085

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 23, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0064

Holstein Parts Knock Sensors 2KNC0064

Holstein Parts Knock Sensors 2KNC0064

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0064

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors for 2007-2015 COOPER, 2011-2016 COOPER COUNTRYMAN, 2013-2016 COOPER PACEMAN - 2KNC0091

Holstein Parts Knock Sensors for 2007-2015 COOPER, 2011-2016 COOPER COUNTRYMAN, 2013-2016 COOPER PACEMAN - 2KNC0091

Holstein Parts Knock Sensors for 2007-2015 COOPER, 2011-2016 COOPER COUNTRYMAN, 2013-2016 COOPER PACEMAN - 2KNC0091

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0091

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors 2KNC0254

Holstein Parts Knock Sensors 2KNC0254

Holstein Parts Knock Sensors 2KNC0254

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0254

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors 2KNC0503

Holstein Parts Knock Sensors 2KNC0503

Holstein Parts Knock Sensors 2KNC0503

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0503

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors 2KNC0037

Holstein Parts Knock Sensors 2KNC0037

Holstein Parts Knock Sensors 2KNC0037

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0037

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Holstein Parts Knock Sensors for 2007-2008 I-370, I-290, 2005-2008 ASCENDER - 2KNC0194

Holstein Parts Knock Sensors for 2007-2008 I-370, I-290, 2005-2008 ASCENDER - 2KNC0194

Holstein Parts Knock Sensors for 2007-2008 I-370, I-290, 2005-2008 ASCENDER - 2KNC0194

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0194

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify