CDI Electronics 114-7452K1 Mercury Mariner Switch Box, 2 Cylinder, Fits 18-40 HP 1980-1987

The CDI Electronics 114-7452K1 is a capacitor discharge (CD) switch box built for 2 cylinder Mercury and Mariner outboards. It uses bullet connectors to interface with the engine's wiring harness, making it a direct fit for engines originally equipped with a stud-type ignition pack. The switch box is the core ignition component that fires the ignition coils in sequence, and replacing a worn or failing unit restores proper spark timing and reliable starting.

This switch box is designed for Mercury and Mariner 18 HP, 20 HP, 25 HP, 35 HP, and 40 HP outboards from 1980 to 1987. It cross-references directly to several Mercury and CDI part numbers, so it can be used to replace any of those numbers on a compatible engine. Because it retains the bullet connector wiring style, no harness modification is needed when swapping out the original switch box.

Specifications

• Brand: CDI Electronics
• Manufacturer Part Number: 114-7452K1
• Connector Type: Bullet Connectors
• Compatible Engine Type: Stud Type Pack Engines
• Number of Cylinders: 2
• Fitment: 18 HP, 20 HP, 25 HP, 35 HP, 40 HP Mercury/Mariner outboards, 1980-1987
• OEM Cross Reference: 114-7452A-3, 18-5776, 339-7452A-2, 339-7452A-3, 899883230, 9-25101, M899883230
• Weight: 0.8 pounds
• Package Dimensions: 5.67 x 4.41 x 2.32 inches

Fitment

• Mercury/Mariner 18 HP, 1980-1987
• Mercury/Mariner 20 HP, 1980-1987
• Mercury/Mariner 25 HP, 1980-1987
• Mercury/Mariner 35 HP, 1980-1987
• Mercury/Mariner 40 HP, 1980-1987

Replaces (OEM)

• 114-7452A-3
• 18-5776
• 339-7452A-2
• 339-7452A-3
• 899883230
• 9-25101
• M899883230

Frequently Asked Questions

What engines does the CDI Electronics 114-7452K1 switch box fit? The 114-7452K1 fits 2 cylinder Mercury/Mariner outboards rated 18 HP, 20 HP, 25 HP, 35 HP, and 40 HP, model years 1980-1987.

Does this switch box use bullet connectors or a stud-type connection? The 114-7452K1 uses bullet connectors, making it a match for engines that were originally equipped with a stud-type ignition pack.

What OEM part numbers does the 114-7452K1 replace? This switch box cross-references to 114-7452A-3, 18-5776, 339-7452A-2, 339-7452A-3, 899883230, 9-25101, and M899883230, so any of those numbers can be replaced with the 114-7452K1.

How much does the switch box weigh? The CDI Electronics 114-7452K1 weighs 0.8 pounds.

What are the package dimensions of this switch box? The 114-7452K1 ships in packaging measuring 5.67 x 4.41 x 2.32 inches.

Is the 114-7452K1 a genuine CDI Electronics part? Yes, the 114-7452K1 is manufactured by CDI Electronics as a switch box for 2 cylinder Mercury/Mariner outboards.

Will this switch box work on a 3 or 4 cylinder Mercury outboard? No, the 114-7452K1 is built specifically for 2 cylinder Mercury/Mariner outboards in the 18-40 HP range for 1980-1987.

Does installing the 114-7452K1 require rewiring the harness? No rewiring is needed as long as the original harness uses bullet connectors, since the 114-7452K1 is designed to plug into that same connection style.

What does a switch box like the 114-7452K1 actually do? It is the CD ignition switch box that stores and discharges the electrical energy used to fire the ignition coils on the Mercury/Mariner 2 cylinder outboard, controlling spark timing.

Can the 114-7452K1 be used across all the listed horsepower ratings interchangeably? Yes, the same 114-7452K1 switch box covers the 18 HP, 20 HP, 25 HP, 35 HP, and 40 HP Mercury/Mariner outboards from 1980-1987 as long as the engine uses the bullet connector, stud-type-pack wiring.

Is the 114-7452K1 compatible with engines outside the 1980-1987 range? The 114-7452K1 is specified for the 1980-1987 model years on the listed Mercury/Mariner horsepower ratings; compatibility outside that range is not specified.