Wells Knock Sensor 5S12504

Restore optimal engine performance and prevent detonation damage with the Wells Knock Sensor 5S12504 (SKU 41-091). This premium OEM-quality knock sensor is specifically engineered for GM and Holden vehicles, delivering precise knock detection for optimal ignition timing, engine protection, and maximum performance.

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Key Features & Benefits

• Wells Quality - OEM-grade component built to GM and Holden exact specifications
• Direct Replacement - Perfect fit for compatible GM and Holden models
• Engine Protection - Detects engine knock to prevent detonation damage and optimize timing
• Enhanced Performance - Ensures optimal ignition timing for maximum power and efficiency
• Durable Construction - Built to withstand extreme temperatures and engine vibration
• Easy Installation - Direct plug-and-play replacement

Vehicle Compatibility

This knock sensor is designed for:

• GM vehicles with compatible engines
• Holden vehicles with compatible engines
• Other compatible GM applications
  
  

CLICK HERE TO CHECK IF THIS FITS YOUR VEHICLE.

OEM Part Number Cross-Reference

This Wells knock sensor replaces the following GM and Holden OEM part numbers:

• 55563372
• 1236006

Wells Part Number

5S12504

Cross Reference Number

KNS-091 KNS091

Common Symptoms of Faulty Knock Sensors

• Engine knocking or pinging noise
• Poor fuel economy
• Loss of power during acceleration
• Check engine light illuminated (P0325, P0326, P0327, P0328 codes)
• Engine hesitation or rough running
• Reduced engine performance
• Increased emissions

Why Choose LM15 Motorsport?

We supply genuine Wells engine management components with fast shipping across Australia. Every part is carefully inspected to ensure you receive the exact component your GM or Holden needs for reliable performance and longevity.

Need help with fitment or installation? Contact our expert team for advice specific to your vehicle.