Description
Product Overview
The Ohleats 4 Pin Starter Relay is engineered for demanding automotive environments where reliable high‑current switching is essential. Constructed with a black plastic shell that provides excellent insulation, waterproofing and flame retardancy, the relay houses copper pins and a silver‑alloy contact design that resists oxidation and maintains low contact resistance. The electromagnetic coil is made from all‑copper wire with an 80 Ω resistance, operating at 24 V DC to deliver a consistent 30 A current rating. Available in 2‑piece and 4‑piece packs, the relay comes in both 4‑pin (12 V/24 V) and 5‑pin (12 V) configurations, giving installers the flexibility to match a wide range of vehicle wiring harnesses. Each unit meets CCC specifications and is backed by Ohleats’ reputation for quality automotive components.
Usage
Designed for straightforward through‑hole mounting on vehicle PCBs or chassis brackets, this relay is ideal for controlling high‑current loads such as electric cooling fans, water pumps, fuel pumps, taillight circuits and power‑door lock solenoids. Its manual operation mode allows direct wire‑to‑relay connections without the need for additional tools, making it a favorite among DIY enthusiasts and professional mechanics alike. Whether you are upgrading an older vehicle’s electrical system or repairing a modern car’s power relay, the Ohleats starter relay offers a dependable solution that fits within standard automotive fuse boxes and relay sockets. 
Why Choose Us
Ohleats combines rigorous testing with premium materials to ensure each relay performs under extreme temperature fluctuations and vibration typical of automotive applications. The copper contacts provide superior conductivity, reducing heat buildup and extending service life. The silver‑alloy contact surface resists corrosion, guaranteeing consistent operation even in humid or salty environments. Our relays are CCC certified, reflecting compliance with stringent safety and performance standards. Additionally, the compact design saves valuable space in crowded engine bays, and the included packaging clearly labels voltage and pin configuration to prevent installation errors.
Key Features
- 30 A current rating at 12 V/24 V for reliable high‑load switching
- Copper pins and silver‑alloy contacts ensure low resistance and corrosion resistance
- Durable black plastic housing provides insulation, waterproofing and flame retardancy
- Through‑hole mounting simplifies installation on standard automotive PCBs
- Available in 2‑pack and 4‑pack options with 4‑pin or 5‑pin configurations
FAQ
What voltage does the relay support?
The relay is designed for 12 V or 24 V DC systems, with a minimum switching voltage of 24 V DC for the 4‑pin version and 12 V DC for the 5‑pin version.
Can I use this relay for 5 A low‑current circuits?
Yes, the relay can handle lower currents down to a few amperes, but it is optimized for high‑current loads up to 30 A, making it ideal for power‑intensive components.
Is the relay waterproof?
The black plastic housing is water‑resistant and meets automotive waterproof standards, suitable for engine compartment installations where exposure to moisture is common.
Do I need any special tools to install the relay?
No special tools are required. The relay uses a standard through‑hole mount; simply insert the pins into the appropriate holes and solder or secure with a clip as per your vehicle’s wiring diagram.
What is the warranty period?
Ohleats offers a one‑year limited warranty covering manufacturing defects, ensuring you receive a reliable component for your automotive projects.




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