332-5772A1 Switch Power Box for Mercury Force | JLM Marine

Switch Power Box for Mercury Force Outboard – 30-125 HP 4-Cylinder (332-5772A1)

This aftermarket switch power box is engineered for Mercury Force outboard engines ranging from 30 to 125 HP with 4-cylinder configurations. Designed to meet or exceed OEM specifications, it ensures reliable ignition performance across a wide range of serial numbers and model years.

This unit directly replaces multiple Mercury part numbers including 332-5772A1, 332-5772A2, 332-5772A3, 332-5772A4, 332-5772A5, 332-5772A7, 114-5772, and 18-5881, providing broad coverage for Force outboard applications.

• Easy Installation: Direct plug-and-play application with OE-style connectors
• Wide Compatibility: Fits 40, 45, 50, 75, 80, 85, 100, 115, and 125 HP Force 4-cylinder models
• Complete CDI Module: Ready to install out of the box

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

Your purchase includes:

• 1 × CDI Module (Switch Power Box)

The package contains all parts shown in the product images.

Installation Guide

1. Disconnect the battery: Before beginning, disconnect the negative terminal of your battery to prevent electrical shock or short circuits.
2. Locate the existing switch box: Find the CDI switch box on your Force outboard, typically mounted near the engine block or under the cowling.
3. Photograph or label the wiring: Take a photo of the existing wire connections to ensure correct reinstallation.
4. Disconnect the wiring harness: Carefully unplug all connectors from the old switch box.
5. Remove mounting hardware: Unbolt or unscrew the old switch box from its mounting bracket.
6. Position the new switch box: Place the new CDI module in the same location, aligning mounting holes.
7. Secure with fasteners: Reinstall bolts or screws to secure the new unit firmly in place.
8. Reconnect the wiring harness: Plug each connector into the corresponding port on the new switch box, referencing your photo.
9. Double-check all connections: Ensure all plugs are fully seated and wires are routed away from hot or moving parts.
10. Reconnect the battery: Reattach the negative battery terminal.
11. Test engine operation: Start the engine and verify smooth ignition, idle, and acceleration. Listen for unusual noises or misfires.
12. Inspect for issues: If the engine does not start or runs poorly, recheck all connections and consult your service manual.

Troubleshooting & FAQ

Q: How do I confirm this switch box fits my Mercury Force engine?
A: Check the compatibility table above for your engine's HP rating and serial number range. You can also cross-reference the OEM part numbers stamped on your existing switch box with those listed in the Part Number Cross-Reference section.

Q: What are the signs that my switch box is failing?
A: Common symptoms include hard starting, rough idling, misfires under load, loss of power at high RPM, or complete failure to start. If spark plugs and coils test good but ignition issues persist, the switch box is often the culprit.

Q: Can I install this myself, or do I need a marine technician?
A: Installation is plug-and-play with basic hand tools. If you're comfortable working with marine electrical systems and following a wiring diagram, you can install it yourself. For those unfamiliar with ignition systems, professional installation is recommended.

Q: How does this aftermarket switch box compare to the original Mercury part?
A: This is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.