21066-3718 Voltage Regulator for Kawasaki Ultra 310X 1500 2014-2021

Voltage Regulator for Kawasaki Ultra 310X

This voltage regulator maintains proper charging voltage on the Kawasaki Ultra 310X 1500, serving as a replacement for OEM cross-reference 21066-3718 to keep the battery and electrical system working correctly.

Overview

This voltage regulator for Kawasaki is a replacement unit designed for the Ultra 310X 1500 watercraft, matching OEM part number 21066-3718. It manages charging output from the stator so the battery charges properly and onboard electronics get stable voltage. A solid choice for riders needing a reliable voltage regulator for Kawasaki jet skis at a sensible price.

Built For Performance

• Maintains stable charging voltage across the rpm range
• Replaces OEM part number 21066-3718
• Durable solid-state internals handle vibration and heat
• Sealed enclosure guards against water intrusion
• Factory-style connector for straightforward installation

Fits These Machines

• for Kawasaki Ultra 310X 1500, 2014-2021

On-The-Job Use

• Replacing a worn or failed regulator causing charging issues
• Fixing a jet ski that drains its battery or stalls from low voltage
• Scheduled electrical upkeep on a Kawasaki Ultra 310X 1500
• Supporting reliable power for ignition, lights, and instruments on the water

Specs At A Glance

Good To Know

Q: What causes a voltage regulator to fail? A: Heat, vibration, and moisture are the usual culprits, along with age-related wear in the internal circuitry. A failed unit often shows up as battery drain or voltage readings outside the normal range.

Q: Does this replace the factory regulator directly? A: Yes, it is built to replace OEM part 21066-3718 using the factory mounting points and connector. It is an aftermarket part and not an original Kawasaki component.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.