Holstein 2KNC0122 Ignition Knock (Detonation) Sensor

Holstein Knock Sensor for Subaru Legacy and Outback

The Holstein Parts 2KNC0122 ignition knock sensor is built for Subaru engines that need accurate detonation detection and stable ignition timing control. It is a direct-fit sensor for select 2010-2012 Subaru Legacy and Subaru Outback applications, with a rectangular female connector and blade terminals for OE-style electrical connection.

Key Features

• Ignition knock (detonation) sensor for engine timing feedback
• Holstein Parts brand line for emission control sensor applications
• Rectangular connector shape with 1 connector
• Female connector gender with 2 male blade terminals
• Direct application coverage for select Subaru Legacy and Subaru Outback models
• Part number 2KNC0122 for accurate catalog matching

Detailed Description

The Holstein 2KNC0122 is an emission control sensor designed to monitor engine knock and send the signal needed for proper ignition adjustment. This matters on Subaru Legacy and Subaru Outback models where knock detection supports smoother combustion control and helps the engine management system respond to abnormal detonation. The Holstein Parts line focuses on replacement components for emission and engine management systems, and this sensor follows the OE-style connector layout for straightforward electrical integration. This part cross-references Standard Ignition KS381 for the same application.

Compatible With 2010 Subaru Legacy, N/A from 02/2009; 2011-2012 Subaru Legacy, N/A; 2010 Subaru Outback, N/A from 02/2009; and 2011-2012 Subaru Outback, N/A. Search terms such as Subaru Legacy knock sensor replacement, Subaru Outback detonation sensor, and Holstein 2KNC0122 knock sensor for Subaru Legacy and Outback can help confirm the correct application.

What It Helps Address

• Knock sensor fault codes related to detonation detection
• Rough engine operation caused by incorrect ignition timing response
• Reduced drivability from a failing Subaru knock sensor
• Check engine light concerns tied to engine knock monitoring
• Timing control issues on select Subaru Legacy and Outback models

Installation Notes and Tips

Verify the connector shape, terminal count, and vehicle application before installation. The 2KNC0122 uses a rectangular female connector with two blade terminals, so matching the harness connection is important for proper fitment. Confirm the model year and note the 2010 Subaru Legacy and Outback coverage begins from 02/2009. Follow factory service procedures for sensor replacement and torque specifications.

Quality Assurance

Holstein Parts supplies replacement emission control sensors for vehicle-specific applications, and this part is cataloged for direct fitment on the listed Subaru Legacy and Subaru Outback models. Use the part number 2KNC0122 to confirm the correct sensor before ordering.