Engineered Marine Products 1300-36039 Marine Knock Sensor

The Engineered Marine Products 1300-36039 is a replacement knock sensor designed for GM small block marine engines. The knock sensor monitors the engine block for abnormal vibrations caused by detonation and pre-ignition, signaling the engine control module (ECM) to retard ignition timing before damage can occur — protecting your powerplant from harmful knock events during operation.

This sensor is a direct-fit aftermarket replacement that cross-references to Mercury Marine 806612T, Volvo Penta 22024631, Mallory Marine 9-33503, and Sierra Marine 18-7677, making it a widely compatible option for popular MerCruiser inboard and sterndrive applications.

Key Features:

• Monitors engine block vibration to detect detonation and pre-ignition
• Signals ECM to correct ignition timing and prevent engine damage
• Direct replacement for Mercury Marine OEM part 806612T
• Compatible with 5.0L, 5.7L, and 6.2L MX GM-based marine engines
• Cross-references: Mercury Marine 806612T, Volvo Penta 22024631, Mallory Marine 9-33503, Sierra 18-7677

Compatible Engine Applications:

• MerCruiser 200, 230, 260
• MerCruiser 350 Scorpion, 350 MAG
• MerCruiser 5.0L, 5.7L, 5.7L LX
• MerCruiser 6.2L MX
• MCM/MIE GM V-8 (305, 350 & 377 CID) engines

Manufactured by Engineered Marine Products (EMP), a trusted name in aftermarket marine engine components. UPC: 77942341275.