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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

Showing In Stock Items. Show All 49 Items.

Results 1 - 25 of 48

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: Tomorrow

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Holstein Parts Knock Sensors 2KNC0025

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0025

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holstein Parts Knock Sensors 2KNC0003

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0003

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0305

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0305

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0021

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0021

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0031

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0031

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0008

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0008

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

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: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0029

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0029

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holstein Parts Knock Sensors 2KNC0064

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0064

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holstein Parts Knock Sensors 2KNC0503

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0503

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holstein Parts Knock Sensors 2KNC0254

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0254

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holstein Parts Knock Sensors 2KNC0037

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0037

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Holstein Parts Knock Sensors 2KNC0002

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0002

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Holstein Parts Knock Sensors for 1996-1998 CIVIC, 1996-2004 RL - 2KNC0004

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0004

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Holstein Parts Knock Sensors for 2000-2005 CELICA, MR2 SPYDER, 1998-2002 COROLLA - 2KNC0507

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0507

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0081

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0081

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0128

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0128

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0219

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0219

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0032

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0032

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0052

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0052

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0123

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0123

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0201

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0201

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0195

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0195

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Holstein Parts Knock Sensors 2KNC0212

Sensor, Ignition Knock Sensor, Replacement, Each

Part Number: HLN-2KNC0212

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

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