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- Maximize your engine’s performance – regardless of fuel quality – with an ACDelco Knock Sensor
- Senses operation swings and relays an accurate signal to your vehicle’s engine control module
- Exceeds OE requirements and reduces potential damage to internal engine components
- Available for a wide range of applications and designed to fit just like the factory
- Offered as a direct-fit for a hassle-free installation
- Your ACDelco Engine Knock Sensor is covered by a 1-year or 12,000-mile limited warranty