Nilight ATV/UTV Fan Override Switch Kit 16AWG w/Relay — Plug-and-Play T-Harness, Waterproof Illuminated Switch

The Nilight 16AWG ATV/UTV Fan Override Switch Kit with relay lets you manually activate or disable your vehicle's radiator fan quickly and without cutting factory wiring.

This compact, plug-and-play wiring harness and illuminated rocker switch give riders direct control over the cooling fan on many ATVs and UTVs. Built from reinforced plastic and fitted with a 5-pin waterproof switch and relay, the kit is designed to withstand outdoor conditions, simplify installation, and preserve original electrical systems. Included fuses and cable ties make it ready for a fast fit on compatible models.

How does this override switch help when you're stuck in mud or shallow water?

When you're navigating mud pits or shallow water, the fan can pull in debris or force water through the radiator area. The override switch allows you to shut the fan off manually so it doesn't run at inopportune times, reducing the risk of damage and making recovery easier.

• Manual fan shutdown without splicing into factory wiring
• Waterproof switch face to resist moisture during crossings
• Relay isolates vehicle circuits for safe operation
• Plug-and-play T-harness reconnects to the stock fan plug

Is the Nilight harness easy to install for an amateur mechanic?

Yes — the harness is intended for straightforward installation. The T-style harness plugs into the fan connector and powers from a 12V source, so you don't need advanced wiring skills. Basic hand tools suffice, and provided accessories speed the process.

• Direct T-harness connector fits into the fan plug
• 16AWG wiring for reliable current flow and durability
• Included blade fuses and cable ties for neat routing and protection
• Clear blue-illuminated rocker switch for night visibility

Which vehicles will this override switch fit?

The kit is compatible with a wide range of popular ATVs and UTVs from major manufacturers. It supports many Polaris, Can-Am, Kawasaki, Honda, and Yamaha models, but note a few specific exclusions for certain 2019 variants.

• Compatible: Polaris RZR (except 2019 RZR XP4 Turbo), General (except 2019 General 4 EPS)
• Also fits: Polaris Sportsman, Ranger 800/900, XP 1000 series
• Fitment includes Can-Am Defender, Maverick X3, Sport, Trail, Commander
• Works with Kawasaki MULE/TERYX, Honda Talon/Pioneer, Yamaha YXZ

What are the build quality and protective features?

The harness and switch are built for off-road use with materials selected to resist wear and exposure. The durable reinforced plastic housing, waterproof switch, and relay-mounted wiring extend the kit's service life when used in harsh environments.

• Reinforced, wear-resistant plastic housing for the switch
• Waterproof rocker switch with transparent blue backlight for visibility
• Relay-based control prevents overload on factory circuits
• Supplied fuses and cable ties help protect and secure the installation

Who is this for? Riders and DIY maintainers who want quick, reversible control over their UTV/ATV cooling fan will benefit most from the Nilight override kit. It suits trail riders, hunters, farmers, and anyone who encounters water, mud, or towing situations where stopping the fan temporarily is advantageous. If you need a simple, non-invasive solution to control fan operation while preserving factory wiring, this kit is built to be installed easily and reliably.