Mercury Mariner Switch Box Power Pack CDI 6 to 25 HP 855713A3 855713A4

A quality Mercury Mariner Switch Box Power Pack CDI 6 to 25 HP 855713A3 855713A4 from Hook & Hull Co. — built to perform in demanding on-water conditions.

• Marine-grade construction for durability
• Precision-engineered for a correct fit
• Suitable for freshwater and saltwater use

Please check fitment, sizing, and compatibility before purchasing. Professional installation is recommended where required.