Sierra 18-7677 Knock Sensor for Marine Engines

The Sierra 18-7677 Knock Sensor is a precision replacement component designed for marine engine applications. This sensor monitors engine vibrations to detect abnormal combustion knock or detonation, sending critical data to the engine control module (ECM) to optimize ignition timing and prevent engine damage.

Key Features:

• Direct replacement knock sensor for marine engines
• Monitors engine vibrations to detect knock and detonation
• Sends real-time data to ECM for ignition timing adjustments
• Helps prevent engine damage from pre-ignition
• Manufactured to OEM specifications for reliable performance
• Corrosion-resistant construction for marine environments

Sierra Marine is known for providing high-quality replacement parts that meet or exceed original equipment standards. This knock sensor ensures optimal engine performance and longevity by maintaining proper combustion timing under varying load conditions.