Motorad 1KS1061 Ignition Knock (Detonation) Sensor

Motorad 1KS1061 Knock Sensor Overview

Motorad 1KS1061 is an ignition knock sensor built to monitor engine knock frequencies and send accurate condition data to the ECM for ignition timing control. It is a bolt-on, female-connector sensor with a blade terminal design, made for Subaru applications including Legacy and Impreza models.

For Subaru Legacy and Subaru Impreza owners searching for a direct replacement knock sensor, this Motorad part number 1KS1061 is engineered to meet OE-level fit and function expectations.

Key Features

• Ignition knock (detonation) sensor for engine timing feedback
• Uses piezoceramic sensing elements for precise signal response
• Built to tight tolerances for consistent durability and accuracy
• Bolt-on mounting type with oval female connector
• Blade terminal design with 1 terminal
• Length: 118.11 mm / 4.65 in
• Compatible with Subaru Legacy and Subaru Impreza applications

Detailed Description

The Motorad 1KS1061 knock sensor is designed to detect a wide range of engine knock frequencies and relay that information to the ECM so ignition timing can be adjusted correctly. That signal accuracy matters on Subaru Legacy and Subaru Impreza engines where knock control is part of maintaining smooth operation and proper combustion performance. Motorad uses high-quality piezoceramic elements and manufacturing tolerances intended to match OE specifications for dependable sensor output.

This part cross-references Standard Ignition KS86 and Hitachi Automotive KNS0004 for the same application. If you are replacing a failing Subaru knock sensor, 1KS1061 provides the correct style of bolt-on installation and connector layout for the listed vehicles.

What It Helps Address

• Check engine light related to knock sensor circuit faults
• Audible pinging or detonation under load
• Incorrect ignition timing caused by poor knock feedback
• Rough engine operation from inaccurate ECM input
• Driveability issues on Subaru Legacy and Subaru Impreza models

Installation Notes and Tips

Verify connector shape, terminal type, and mounting style before installation. This sensor uses a bolt-on mount and does not include mounting hardware or a wiring harness. Clean the mounting surface and follow the vehicle service procedure for torque and connector routing to help ensure accurate signal transfer.

Quality Assurance

Motorad designs this knock sensor to meet and exceed OEM specifications, with piezoceramic sensing elements manufactured to tight tolerances for durability and signal accuracy. It is built for direct replacement use on the listed Subaru Legacy and Subaru Impreza applications.