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CDI 114-7452A3 339-7452A3 Switch Box For Mercury 2 Cylinder 18 20 25 35 40 Hp
$70.99
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$70.99
Regular price
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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
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Product Overview
The CDI 114-7452A3 339-7452A3 Switch Box for Mercury 2 Cylinder outboards is a critical engine component designed to restore proper ignition system operation. By controlling the exact firing sequence and providing reliable high-energy CDI switching, this module ensures smooth engine acceleration and stable performance under challenging marine conditions. Built with marine-grade sealed electronics and insulated internal circuitry, it effectively handles high thermal demands while resisting vibration and humidity.
Key Features & Performance
- Marine-grade sealed electronic construction protects internal circuitry
- Designed to maintain precise and stable spark sequencing
- Vibration-resistant circuitry engineered for harsh outboard environments
- High-energy CDI ignition switching design enhances throttle response
Fitment & Compatibility
- for Mercury 18 HP 2 Cylinder
- for Mercury 20 HP 2 Cylinder
- for Mercury 25 HP 2 Cylinder
- for Mercury 35 HP 2 Cylinder
- for Mercury 40 HP 2 Cylinder
Common Uses
- Replacing a failing switch box causing intermittent spark or engine misfires
- Resolving random cylinder firing issues and top-end RPM loss
- Restoring stable electrical operation to outboard ignition systems
Technical Specifications
- Product Type: Switch Box
- Part Number(s): 114-7452A3, 339-7452A3
- Replacement Number(s): 18-5776, 9-25101, 332-7452A2, 332-7452A3, 899883230
- Brand Compatibility: for Mercury
- Engine Compatibility: 18HP, 20HP, 25HP, 35HP, 40HP 2-Cylinder
- Equipment Type: Outboard Engine
Frequently Asked Questions
Q: How do I ensure this switch box will fit my outboard engine? A: You should verify your existing module's part number against the listed OEM and replacement references such as 339-7452A3 or 114-7452A3 before ordering.
Q: What are the common symptoms that indicate this part needs replacement? A: Typical signs include an intermittent spark, unexpected engine drop-out, random cylinder misfires during acceleration, or a noticeable loss of top-end RPM.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.