Honda K24Z7 Knock Sensor Bolt 11109-R1A-A00

Honda K24Z7 Knock Sensor Bolt (11109-R1A-A00)

When you are replacing a knock sensor or freshening up the engine bay, the small hardware matters more than people like to admit. The Honda K24Z7 Knock Sensor Bolt with part number 11109-R1A-A00 is the correct factory bolt designed to secure the donut-style knock sensor used on several Honda and Acura engines. Haltech even offers a kit that uses a bolt and donut style knock sensor like the K20C1 Knock Sensor, 30530-RPY-G01. 

Knock sensors are sensitive by design, and using the wrong bolt length, shoulder, or thread can lead to false knock readings or poor sensor performance. This OEM Honda knock sensor bolt ensures the sensor sits flat, tight, and communicates accurately with the ECU.

It is a direct fit for the donut-style knock sensor found on the K24Z7 engine, and it was also used on the K24Y2 in the Honda Crosstour and the L-series engines found in the CR-Z. If you are chasing drivability issues, fixing a check engine light, or simply doing the job right the first time, this is the bolt you want holding your knock sensor in place.

Vehicle Compatibility

• 2013 to 2015 Acura ILX
• 2012 to 2015 Honda Civic Si
• 2012 to 2015 Honda Crosstour
• 2013 to 2016 Honda CR-Z
• 2012 to 2014 Honda CR-V
• 2016 to 2022 Honda HR-V

Key Features

• Genuine Honda knock sensor bolt
• Part number 11109-R1A-A00
• Designed for donut-style knock sensors
• Correct length and thread for proper sensor clamping
• Direct replacement for worn, corroded, or missing hardware
• Ensures accurate knock sensor readings and ECU feedback

If you are working on a K24Z7, K24Y2, or L-series engine, do not gamble with universal hardware. This OEM Honda knock sensor bolt gives you the proper fit and peace of mind that your knock sensor is doing its job exactly the way Honda intended.