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

Voltage Regulator for Kawasaki Ultra 310LX 1500

This voltage regulator maintains steady charging output on your Kawasaki Ultra 310LX 1500 jet ski by regulating voltage to the battery; it is a replacement unit referencing OEM 21066-3718.

Overview

This voltage regulator is a replacement charging system component made for the Kawasaki Ultra 310LX 1500 watercraft sold from 2014 through 2021. It controls the voltage fed to the battery so the charging system stays within spec and electronics run without spikes. It is intended for owners repairing or refreshing the electrical system on their Kawasaki Ultra 310LX 1500.

Built For Performance

• Controls charging voltage to prevent battery overcharge
• Replacement for OEM part number 21066-3718
• Solid-state design with no wearing parts
• Sealed body resists water and spray intrusion
• Mounts using the factory location and hardware points
• Built to match the charging demands of the 1500 engine

Fits These Machines

• for Kawasaki Ultra 310LX 1500, 2014-2021

On-The-Job Use

• Fixing a charging system that leaves the battery flat
• Replacing a regulator that has failed or run hot
• Scheduled electrical upkeep on the 1500 platform
• Keeping gauges, ignition, and accessories powered consistently

Specs At A Glance

Good To Know

Q: What causes a voltage regulator to fail on a jet ski? A: Heat, corrosion, and vibration are the usual culprits in a marine charging system. A failed regulator often shows up as a dead battery or unstable voltage readings.

Q: Does this regulator replace part 21066-3718 directly? A: It is supplied as a replacement referencing that part number for the listed models and years. Check your original part number and connectors against this listing before purchase.

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