WARN Winch Contactor 107487 replacement relay — sealed heavy-duty compact contactor

The WARN 107487 Winch Contactor is a heavy-duty replacement relay assembly that reliably switches high current to WARN winches and other compatible off-road winch systems.

Designed by WARN, a leader in off-road recovery equipment since 1948, the 107487 contactor provides the electrical switching needed to engage your winch motor safely and consistently. Built for rugged environments, this compact module replaces worn or damaged contactors to restore proper winch function without replacing the entire winch. It’s an automotive-grade accessory sized for straightforward installation into winch control circuits or factory mounting points.

How does the WARN 107487 improve winch performance?

The contactor acts as the main high-current switch between your battery and winch motor, ensuring full power delivery when you need it. A reliable contactor reduces voltage drop and prevents intermittent engagement that can stall a recovery. WARN builds these components to withstand frequent cycling and exposure typical of off-road use.

• Provides a low-resistance conduction path for peak winch current
• Reduces electrical arcing and contact wear compared with degraded relays
• Maintains consistent engagement under heavy load

What should I know about installation and fitment?

The 107487 is a compact, single-package contactor designed for compatibility with WARN winch models and many aftermarket wiring setups. Installation typically requires basic hand tools, correct battery and motor terminal connections, and secure mounting to prevent vibration damage. Follow WARN wiring diagrams or a certified technician’s guidance for safe electrical work.

• Compact package dimensions make it easy to mount in winch control compartments
• Connect battery, motor, and control switch terminals per WARN wiring specifications
• Use proper ring terminals and torque to prevent loose connections

What durability features matter for off-road use?

Warn designs electrical components to endure dirt, moisture, and repeated mechanical stress encountered off-road. The 107487 contactor uses robust contacts and a sealed enclosure to minimize contamination and corrosion. That durability helps maintain recovery readiness even in harsh climates and rugged terrain.

• Heavy-duty contact points resist pitting from repeated high-current switching
• Enclosed housing limits ingress of dust and moisture
• Sized and weighted for vibration resistance when mounted on vehicles

How can I tell when the contactor needs replacement?

Symptoms of a failing contactor include intermittent winch engagement, buzzing or arcing noises, excessive heat at terminals, or a winch that only runs in one direction. Visual signs like burned or corroded contacts and melting on terminal ends also indicate replacement is necessary. Swapping in a WARN 107487 restores proper switching behavior when these issues appear.

• Intermittent or no winch motor activation despite correct control input
• Visible damage, pitting, or discoloration on contact surfaces or terminals
• Unusual electrical noises or terminal heating during operation

Who this is for: The WARN 107487 Winch Contactor is intended for off-road enthusiasts, professional recovery operators, and vehicle owners needing a direct replacement contactor for WARN winches or compatible systems. It suits DIY mechanics and shops that perform electrical maintenance on winches and want a durable, OEM-quality switching component to restore safe, consistent winch operation.

Product details:

• Item Package Dimension: 0.2L x 0.2W x 0.2H inches
• Item Package Weight: 1.0 Pounds
• Item Package Quantity: 1
• Product Type: AUTO ACCESSORY

California residents: This product can expose you to chemicals including Chromium (hexavalent compounds), which the State of California lists as causing reproductive harm. For more information consult WARN or California resources.