The Sierra 18-5775-1 Switch Box is a high-quality replacement ignition component designed for Mercury, Mariner, and Chrysler/Force marine outboard engines. This switch box, also known as a power pack or CDI module, is a critical component of the ignition system that controls the timing and firing of the spark plugs.
Key Features:
- Designed for 3 and 6-cylinder outboards equipped with ADI ignition systems
- Manufactured to meet or exceed OEM specifications for reliable performance
- Direct replacement with OEM-style connectors for straightforward installation
- Precision-engineered to deliver proper voltage and timing to the ignition coils
- Built with quality materials for durability in harsh marine environments
Replaces OEM Part Numbers: Mercury Marine 332-7778A1, 332-7778A3, 332-7778A6, 332-7778A9, 332-7778A12, 332-5524A1; Chrysler/Force 332-7778A6, 332-7778A9, 332-7778A12; CDI 114-7778; Mallory 9-25100
Compatible Applications: Fits various Mercury and Mariner 3-cylinder engines (50-90 HP) from 1976-1993 and 6-cylinder engines (90-300 HP) from 1978-2000, including Sport Jet and Race Outboard models with ADI ignition systems. Verify compatibility with your specific engine model and serial number before ordering.
Sierra Marine is a trusted leader in aftermarket marine engine parts, offering products backed by comprehensive warranty coverage. This switch box provides a cost-effective alternative to OEM parts without compromising on quality or performance.