Gaogsiy Voltage Regulator 21066-7017 for 603cc‑726cc 4‑Stroke Engines

Description

Product Overview

The Gaogsiy Voltage Regulator (model 21066-7017) is engineered for 603cc‑726cc 4‑stroke engines commonly found in powersports applications. Its machined metal housing delivers high strength, excellent electrical conductivity, and resistance to heat and corrosion. Weighing only 1.44 ounces and measuring 3 x 2 x 1 inches, it fits compact engine bays while providing stable voltage output through its three terminals: B+, AC, and AC.

Usage

Designed for off‑road motorcycles, ATVs, and small utility vehicles, this regulator maintains consistent power to ignition and electronic systems even under demanding conditions. Whether you are tackling rugged trails or commuting daily, the regulator ensures smooth engine performance and protects sensitive components from voltage spikes. Ideal for riders who demand reliability without frequent maintenance.

Why Choose Us

Gaogsiy combines decades of engineering expertise with rigorous quality testing. Each regulator undergoes thermal cycling and vibration tests to meet automotive standards. Our commitment to precision machining guarantees a perfect fit for the listed OE numbers, reducing installation time and the risk of errors. We also provide responsive customer support to assist with fit verification and technical questions.

Key Features

• Durable metal construction for long‑lasting performance
• Stable voltage output protects engine electronics
• Compact size fits tight engine compartments
• Three terminals (B+, AC, AC) simplify wiring
• Responsive after‑sales support and easy replacement policy

FAQ

Which engine models are compatible?

The regulator fits FX730V, FR651V, FR691V, FS600V, FR730V, FS730V, FX651V, FS651V, FX691V, FS691V, FR600V, FX600V, FR541V, FX541V, FS541V, FS481V, FX481V and other 603cc‑726cc 4‑stroke engines.

How do I install the regulator?

Connect the three terminals to the corresponding B+, AC, and AC wires, secure the unit with the provided bolts, and ensure the wiring harness is properly insulated.

What warranty does Gaogsiy offer?

All regulators come with a one‑year limited warranty covering manufacturing defects and include access to our technical support team.

Is this regulator suitable for marine use?

While designed for powersports, the metal housing provides good corrosion resistance, but we recommend a dedicated marine‑grade regulator for prolonged water exposure.

Can I use this part as a direct replacement for the OEM regulator?

Yes, it matches OE numbers 21066-7017, 210667017, and 21066 7017, making it a direct bolt‑in replacement.