Walker 242-1050 Ignition Knock (Detonation) Sensor

Walker 242-1050 Knock Sensor for Nissan and Infiniti

Walker Products 242-1050 is an ignition knock sensor built for direct replacement on select Nissan, INFINITI, and Smart applications. It uses a 2-terminal blade connection with a rectangular female connector and male terminals for a straightforward electrical interface.

Walker Products has supplied fuel system and engine management components since 1946, with manufacturing and engineering support focused on OEM-level specifications. The Walker Products line includes engine sensors and related components for import and domestic repair needs.

Key Features

• Ignition knock (detonation) sensor for engine timing feedback
• Part number 242-1050 for application matching and catalog lookup
• Rectangular connector with 1 connector and 2 terminals
• Female connector / male terminal configuration
• Blade terminal type for the specified vehicle harness interface
• No wiring harness included
• No mounting hardware included

Application Details

Compatible with select Nissan Frontier, NV200, Cube, Sentra, Versa, Pathfinder, Xterra, Armada, Quest, TITAN, Maxima, Altima, Pathfinder Armada, INFINITI QX56, and Smart Fortwo applications across the listed model years. This part number 242-1050 is also referenced in cross-application catalogs for the same sensor location and function.

Use this sensor when servicing knock control on vehicles such as the Nissan Sentra, Nissan Altima, and Nissan Frontier. The sensor monitors engine vibration patterns so the control system can respond to detonation-related signals and maintain proper engine operation.

What This Sensor Helps Address

• Knock sensor fault codes
• Detonation-related drivability concerns
• Reduced engine performance caused by inaccurate knock feedback
• Illuminated check engine light tied to sensor circuit faults
• Intermittent sensor signal issues from connector or terminal wear

Installation Notes

Verify connector shape, terminal count, and harness style before installation. Confirm vehicle-specific fitment by year and model, especially on Nissan Altima, Sentra, and Frontier applications where production date notes apply. Inspect the connector for corrosion or damaged terminals before connecting the new sensor, and follow the service procedure for the engine location specified by the vehicle.

Quality Assurance

Walker Products manufactures engine sensors to meet or exceed OEM standards and specifications, supported by in-house product management and engineering. The company is ISO 9001 and IATF 16949 certified, with technical support and application data maintained for aftermarket service accuracy.