8961512040 Engine Knock Detonation Sensor for Toyota Lexus

Product Overview

This aftermarket replacement engine knock sensor is intended for Toyota and Lexus applications and references part number 8961512040. An engine knock sensor detects abnormal combustion vibration in the engine block and sends a signal that allows the engine management system to adjust ignition timing. Proper sensing of detonation helps the engine control system manage combustion under varying load conditions.

Key Features & Performance

• Detects engine block vibration associated with knock or detonation and relays a signal to the engine management system
• Supports the engine control system in adjusting ignition timing based on combustion signals
• References part number 8961512040 for comparison with the existing component
• Suitable for replacement when the original sensor is worn, damaged, or malfunctioning

Fitment & Compatibility

• for Toyota applications as indicated by the supplied part number
• for Lexus applications as indicated by the supplied part number

Common Uses

• Replacing a worn, damaged, or malfunctioning knock sensor
• Routine maintenance of the engine management and ignition timing system
• Restoring normal knock detection function after the original sensor has failed

Technical Specifications

• Product Type: Engine Knock Detonation Sensor
• Part Number: 8961512040
• General Application: Toyota and Lexus

Frequently Asked Questions

Q: What does an engine knock sensor do? A: It detects vibration caused by abnormal combustion in the engine block and sends a signal to the engine management system so ignition timing can be adjusted.

Q: How should fitment be verified? A: Compare the complete existing part number 8961512040 and the full Toyota or Lexus model designation against the information supplied before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.