Description
Product Overview
The WM Auto Part radiator fan relay is engineered for automotive cooling applications where reliability and precise performance are essential. Constructed with high‑conductivity copper contacts (or optional silver), the relay delivers a consistent 50 milliwatt wattage while operating in an automatic mode. Its through‑hole, PCB‑mount design mirrors original equipment (OE) specifications, ensuring a seamless fit in existing radiator fan circuits. The unit complies with OE part numbers 36152, 39794SDAA01‑04 and carries the manufacturer part number WMR218. Weighing just 0.528 oz and packaged in a compact 6.73 × 3.07 × 0.55 in box, it is lightweight yet robust, suitable for both professional service centers and home garages.
Usage
Designed for modern vehicles equipped with electric cooling fans, this relay is ideal for replacing worn or faulty OEM units. It excels in high‑temperature environments, rapidly dissipating heat to maintain cooler operating temperatures and extend component life. Installers benefit from the identical mounting and connector layout, allowing a drop‑in replacement without rewiring. Whether you are servicing a passenger car, light truck, or performance vehicle, the relay’s normally open contact type ensures the fan engages only when needed, protecting the engine from overheating.
Why Choose Us
WM Auto Part stands for quality and precision. Each relay undergoes rigorous testing to meet OE standards, guaranteeing form, fit, and function identical to the original component. Our copper contact material provides superior conductivity and durability compared to generic alternatives. The rapid heat‑dissipation design reduces thermal stress, while the built‑in short‑circuit protection safeguards the vehicle’s electrical system. Backed by a 4.8‑star rating from verified customers, this relay delivers dependable performance that technicians trust.
Key Features
- High‑conductivity copper contacts for reliable electrical flow
- Through‑hole PCB mount matches OE dimensions for easy installation
- Automatic operation mode with precise short‑circuit protection
- Rapid heat dissipation extends part life and maintains cooler temperatures
- OE‑approved fit and function for multiple OEM part numbers
FAQ
What vehicles are compatible with this relay?
The relay fits any vehicle that uses the OEM part numbers listed (36152, 39794SDAA01‑04). It is commonly found in many mid‑size sedans, SUVs, and light trucks from various manufacturers.
Can I replace the relay without removing other components?
Yes. The mounting style and connector layout are identical to the original, allowing a direct swap without additional disassembly.
Is the relay suitable for high‑performance engines?
Absolutely. Its copper contacts and efficient heat‑dissipation design handle higher current demands, making it appropriate for performance and racing applications.
What warranty does WM Auto Part provide?
WM Auto Part offers a one‑year limited warranty covering defects in materials and workmanship, ensuring peace of mind for professional and DIY users alike.
How does the short‑circuit protection work?
The relay includes an internal mechanism that detects abnormal current spikes and opens the circuit, preventing damage to the fan motor and vehicle’s electrical system.
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