12V DC 40 Amp 4 Pin OEM Relay For GM Vehicles Including Buick GMC Cadillac Chevrolet Hummer Oldsmobile Pontiac Saturn Air Conditioning Fans Fuel Pump Ignition Fixes P0615 P0641 Errors Multi Purpose 9815 Relay Plug And Play

High-Power 12V 4-Pin GM Relay - Single Pack
✔️ 12V DC, 40A, 4-pin OEM GM relay, plug-and-play, install easy

This high-current 12V DC 4-pin relay is designed for GM vehicles including Buick, GMC, Cadillac, Chevrolet, Hummer, Oldsmobile, Pontiac, and Saturn. It serves as a reliable switch for A/C compressors, cooling fans, fuel pumps, ignition circuits, and other heavy-load devices, fitting into tight fuse boxes and engine bays.

✅ Terminal Type: Blade 4-pin SPST contact
✅ Voltage/Current: 12V DC, 40A rating
✅ Size: 26x23x15mm / 1.02x0.91x0.59in
✅ Material: Silver alloy contacts for durable conduction
✅ Operating temp: -40 to +125°C (no freezing)
✅ Easy install: Push-in mounting, compact fit in tight spaces

💡 What is a high-power 12V four-pin GM relay used for in automotive electrical systems and how does it help control heavy-load circuits? This handy device acts as a robust switch in many GM-based setups.
- Automotive electrical control for A/C compressors, fans, pumps
- Ignition and lighting circuit switching in GM platforms
- Compact power switching for HVAC and motor loads
- Fits in tight fuse boxes and engine bays for quick upgrades