879147T62 Rectifier for Mercury Tohatsu F10 F15 F20 MFS9.9C MFS15C MFS15D MFS20C MFS20D | JLM Marine

Rectifier 879147T62 – Fits Mercury & Tohatsu 4-Stroke Outboards 10–20 HP

This aftermarket Voltage Regulator Rectifier is engineered for Mercury F10, F15, F20 and Tohatsu MFS9.9C, MFS15C, MFS15D, MFS20C, MFS20D 4-stroke outboard engines. It delivers reliable voltage regulation and charging performance, ensuring your electrical system runs smoothly on the water.

Direct replacement for OEM part numbers 879147T62, 3BJ-76060-0, and 3BJ-76060-1. This unit features improved heat sink design, higher-grade electrical components, and plug-and-play installation—no modifications required.

• Plug-and-play design: Direct fit with 4-pin connector—no assembly needed.
• Enhanced components: Upgraded heat dissipation and charging capabilities exceed OEM standards.
• Factory tested: Each unit is inspected before shipment for quality assurance.

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

• 1 × Voltage Regulator Rectifier

Note: The package contains all the parts shown in the product images.

Installation Guide

1. Disconnect the battery: Turn off the engine and disconnect the negative terminal to prevent electrical shock.
2. Locate the old rectifier: Find the existing voltage regulator rectifier on your outboard—typically mounted near the engine block or charging system.
3. Disconnect the wiring harness: Carefully unplug the 4-pin connector from the old rectifier.
4. Remove mounting hardware: Unscrew the bolts securing the rectifier to the mounting bracket (fixation holes are 63.8 mm apart).
5. Install the new rectifier: Position the new unit in place and secure it with the original bolts, ensuring a snug fit.
6. Reconnect the wiring: Plug the 4-pin connector into the new rectifier—it should click securely into place.
7. Inspect connections: Verify that all wires are seated properly and free from corrosion or damage.
8. Reconnect the battery: Attach the negative terminal and ensure it is tightened securely.
9. Test the system: Start the engine and check for proper charging voltage using a multimeter (typically 13.5–14.5 V at idle).
10. Monitor performance: Run the engine for a few minutes and confirm there are no warning lights or irregular electrical behavior.

Troubleshooting & FAQ

Q: How do I confirm this rectifier fits my engine?
A: Cross-reference your engine model and year with the compatibility table above. Also verify that your original part number matches 879147T62, 3BJ-76060-0, or 3BJ-76060-1. If dimensions or connector pin count differ, do not proceed with installation.

Q: What are the signs that my rectifier is failing?
A: Common symptoms include dim lights at idle, battery not charging, overheating rectifier, or intermittent electrical issues. Use a multimeter to check charging voltage—readings significantly below 13.5 V or above 15 V indicate a faulty rectifier.

Q: How often should I replace the rectifier?
A: Rectifiers typically last several years under normal use. Replace immediately if you notice charging problems, physical damage, or corrosion. Regular inspections during seasonal maintenance can help identify issues early.

Q: Can I install this myself or do I need a mechanic?
A: Installation is straightforward—plug-and-play with a 4-pin connector and two mounting bolts. If you are comfortable with basic electrical work and have a multimeter, you can do it yourself. Otherwise, professional installation is recommended for safety.

Q: What is the difference between this aftermarket rectifier and the OEM version?
A: This aftermarket unit is built to OEM specifications with comparable-grade materials and enhanced heat sink design. It meets or exceeds original performance standards at a more competitive price point, and each unit is factory tested before shipment.

Q: OEM vs. Aftermarket?
A: This listing 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.