OLIFANT Voltage Regulator Rectifier for Yamaha Grizzly 125–660 — 6‑Pin 12V Charging Stabilizer

This replacement regulator-rectifier is designed to restore reliable charging and prevent over-voltage or battery drain on a wide range of Yamaha ATVs and UTVs. Engineered to match OEM electrical connections (6-pin) and reference numbers 5GT-81960-00-00 / 5BN-81960-00-00, it fits many Grizzly, Raptor, Rhino, Bear Tracker, Bruin, Big Bear, Wolverine and Kodiak models. The unit converts alternator AC to regulated DC so lights, ignition and battery charging run smoothly.

Will this part fit my Yamaha model?

Compatibility covers many popular Yamaha utility and sport ATVs across several years. Check your OEM reference number and wiring plug to confirm a match before ordering.

• Fits Grizzly 125, 350, 400, 450, 600, 660 models
• Compatible with Raptor 250, 350, 660, 660R, 700, 700R
• Works for Rhino 450 (2006–2009), Rhino 660 (2004–2007)
• Also fits Bear Tracker, Bruin, Big Bear, Wolverine, Kodiak variants listed in product features
• Requires a 6-pin plug and matches reference numbers 5GT-81960-00-00 or 5BN-81960-00-00

How does this regulator-rectifier affect charging and electrical systems?

The device converts the alternator's AC current into a stable 12V DC output while limiting voltage spikes that can damage electronics or shorten battery life. Replacing a failing unit prevents dimming lights, poor starts, and erratic instrument behavior.

• Provides regulated DC output at 12V for battery charging
• Reduces voltage surges that harm lights and electronics
• Restores consistent charging to improve battery longevity
• Direct-fit 6-pin connector for straightforward installation

What should I know about installation and maintenance?

Installation is typically a bolt-on swap for OEM-style regulator-rectifiers; basic mechanical skills and a few hand tools are usually sufficient. Always disconnect the battery before replacing electrical components and verify connector orientation during reassembly.

• Disconnect battery negative before starting
• Remove and compare old part with new unit for plug and mounting alignment
• Tighten mounting fasteners to chassis ground for proper heat dissipation
• Inspect stator and wiring harness for damage while installing

What performance differences can I expect after swapping to this part?

Once installed, expect steadier illumination, improved battery charge behavior, and fewer electrical anomalies during idling and higher RPMs. The rectifier's heat-sink design helps manage thermal loads under prolonged use.

• Brighter, more consistent headlights and dash lighting
• More reliable starting and battery retention between rides
• Reduced risk of electronics failure from irregular voltages
• Durable housing and thermal management for extended service life

Who is this for? This OLIFANT regulator-rectifier is intended for Yamaha ATV and UTV owners, mechanics, and fleet managers needing a dependable OEM-style replacement. It suits riders restoring older machines, resolving charging system faults, or upgrading from a damaged or intermittent rectifier. Verify model and reference numbers to ensure correct fitment before purchase.