68V-81960-00 Voltage Regulator Rectifier for Yamaha Mercury | JLM Marine

Voltage Regulator Rectifier – Fits Yamaha & Mercury Outboards and Personal Watercraft

This voltage regulator rectifier is engineered to deliver reliable charging performance across a wide range of Yamaha and Mercury engines. It fits Yamaha 4-stroke outboards from 50 to 115 HP (2000–2015), Yamaha personal watercraft including FX, FX Cruiser, GP1300R, and VX series models, as well as Mercury 4-stroke outboards from 75 to 115 HP (2000–2013).

This aftermarket replacement directly replaces Yamaha 6D3-81960-00-00, 6D3-81960-00, 68V-81960-00-00, 68V-81960-00 and Mercury 881346T. It provides a cost-effective solution without compromising electrical system integrity.

• Designed for both outboard motors and personal watercraft applications
• Ensures stable voltage output to protect electrical components
• Direct-fit replacement for straightforward installation

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 Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

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.

Package Contents

1 × Voltage Regulator / Rectifier

(The package contains all the parts shown in the picture.)

Installation Guide

1. Disconnect the negative battery cable to prevent electrical shock or short circuits.
2. Locate the old voltage regulator rectifier; it is typically mounted near the engine's electrical components.
3. Disconnect all wiring harness connectors from the old regulator, noting their positions for reassembly.
4. Remove the mounting bolts or screws securing the old unit to the engine or bracket.
5. Clean the mounting surface to ensure proper heat dissipation and electrical grounding.
6. Position the new voltage regulator rectifier onto the mounting surface, aligning the bolt holes.
7. Secure the new unit with the original mounting hardware, tightening bolts evenly to manufacturer specifications.
8. Reconnect all wiring harness connectors to the corresponding terminals on the new regulator.
9. Double-check all connections for tightness and proper orientation.
10. Reconnect the negative battery cable.
11. Start the engine and verify that the charging system is functioning correctly by checking battery voltage (should be around 13.5–14.5V at idle).
12. Perform a test run and monitor for any electrical issues or warning lights.

Troubleshooting & FAQ

How do I confirm this voltage regulator fits my engine?
Cross-reference your original part number with the OEM numbers listed (Yamaha 6D3-81960-00-00, 68V-81960-00-00, Mercury 881346T). Also verify your engine model and year against the compatibility table above.

What are the signs that my voltage regulator rectifier is failing?
Common symptoms include battery not charging, overcharging (voltage above 15V), dimming lights, or electrical components malfunctioning. A multimeter test showing inconsistent or out-of-range voltage output confirms failure.

Can this regulator be used on both outboards and personal watercraft?
Yes, this unit is compatible with both Yamaha 4-stroke outboard motors (50–115 HP) and Yamaha personal watercraft models listed in the compatibility table.

How often should I replace the voltage regulator rectifier?
There is no fixed replacement interval; replace it when you experience charging system issues or during routine electrical system inspections if corrosion or damage is visible. Regular voltage checks can help identify problems early.

What is the difference between this aftermarket part and the OEM version?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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.