Walker 242-1026 Ignition Knock (Detonation) Sensor

Walker Products 242-1026 Knock Sensor Overview

Walker Products 242-1026 is an ignition knock sensor for select Volkswagen applications. It is built with a rectangular female connector, 2 male terminals, and a blade-style terminal design for direct replacement service on listed vehicles.

Compatible With 1999-2001 Volkswagen Beetle, 2000-2001 Volkswagen Golf, and 2000-2001 Volkswagen Jetta. This Walker Products knock sensor is also listed for 1999 Volkswagen Golf and 1999 Volkswagen Jetta without harness.

Key Features

• Part number: 242-1026
• Ignition knock (detonation) sensor for engine management service
• 1 rectangular female connector
• 2 male blade terminals
• Wiring harness not included
• Mounting hardware not included
• Length: 43.7700

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946 and manufactures to meet or exceed OEM standards and specifications. The Walker Products line supports aftermarket repair with engineering, product management, and technical documentation focused on accurate vehicle applications. Part number 242-1026 is listed for Volkswagen Beetle, Volkswagen Golf, and Volkswagen Jetta applications in the 1999-2001 model years, making it a direct-fit replacement choice for knock sensor service on those vehicles.

This part cross-references Standard Ignition KS251 for the same application.

What It Helps Address

• Knock sensor fault codes
• Engine pinging or detonation-related drivability issues
• Rough running caused by inaccurate knock detection
• Check engine light concerns tied to the ignition knock sensor circuit
• Failed sensor signal on Volkswagen Beetle, Golf, or Jetta applications

Installation Notes

Verify connector style, terminal count, and harness routing before installation. Because the wiring harness is not included, reuse or replace the vehicle harness as needed. Confirm the sensor mounting surface is clean and follow the vehicle service procedure for torque and placement. For 1999 Volkswagen Golf and 1999 Volkswagen Jetta listings, note the application is specified as ignition knock (detonation) sensor without harness.

Quality Assurance

Walker Products is an ISO 9001/IATF16949 certified manufacturer and states that its engine sensor products are produced to meet or exceed OEM standards and specifications. The company also backs its catalog with in-house engineering and technical support for application accuracy.