Motorad 1KS1041 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for Toyota and Lexus

The Motorad 1KS1041 ignition knock sensor monitors engine knock frequencies and sends accurate signal data to the ECM for ignition timing control. It is built with a high-quality piezoceramic element held to tight tolerances for durability and consistent response.

• Part number 1KS1041 for direct replacement research
• Threaded end diameter: 12.0
• Designed to meet or exceed OEM specifications
• Manufactured in ISO TS16949 facilities
• Fits Toyota 4Runner, Tacoma, T100, Pickup, Celica, and MR2 applications
• Fits Lexus LS400 and SC400 applications

Fitment Coverage

• Fits 1996-2000 Toyota 4Runner, N/A. Replaces part built by Matsushita.
• Fits 2000 Toyota Tacoma, N/A. With Federal Emissions System.
• Fits 1995-1999 Toyota Tacoma, N/A.
• Fits 1993-1998 Toyota T100, N/A.
• Fits 1991-1997 Lexus LS400, N/A.
• Fits 1992-1997 Lexus SC400, N/A.
• Fits 1992-1995 Toyota 4Runner, N/A.
• Fits 1992-1995 Toyota Pickup, N/A.
• Fits 1992-1993 Toyota Celica, N/A.
• Fits 1992-1993 Toyota MR2, N/A. Replaces part built by Matsushita.
• Fits 1990 Lexus LS400, N/A. From 06/1990.

What This Sensor Helps Address

• Knock sensor fault codes
• Incorrect ignition timing from poor knock detection
• Engine pinging or detonation under load
• Rough running caused by inaccurate ECM input
• Check engine light conditions tied to knock sensor failure

Installation Notes

Confirm the threaded end diameter is 12.0 before installation. Verify the vehicle application by year, make, model, and emissions configuration, especially for the 2000 Toyota Tacoma with Federal Emissions System and the listed Matsushita replacement applications. This part cross-references 2131824 and 89052892 for the same application.

Quality Assurance

Motorad designs this knock sensor to meet or exceed OEM specifications and produces it in ISO TS16949 manufacturing facilities for controlled quality and fit consistency. The 1KS1041 is engineered for accurate engine-condition feedback to the ECM on Toyota and Lexus applications.