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⚡ Upgrade your ride’s glow—never drive dim again!
The H4 Relay Harness Kit is a vehicle-specific wiring upgrade designed for Toyota Tacoma (1995-1997) and Pickup (1988-1995) models. It resolves dim, flickering, and malfunctioning LED headlights caused by dual ground wiring issues. Featuring dual high-temperature ceramic relays, this 12V harness ensures reliable power delivery, protects your car’s electrical system, and supports 5x7 and 7x6 LED headlight upgrades for a seamless, professional installation.





| ASIN | B089M4DC45 |
| Auto Part Position | Front |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #45,239 in Automotive ( See Top 100 in Automotive ) #83 in Car Audio & Video Wiring Harnesses #100 in Automotive Replacement Electrical Wiring Harnesses |
| Brand Name | RENMAII-LIGHT |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,173) |
| Fit Type | Vehicle Specific Fit |
| Item Weight | 0.33 Kilograms |
| Light Source | Light Emitting Diode (LED) |
| Manufacturer | RENMAII-LIGHT |
| Manufacturer Part Number | REN012 |
| Manufacturer Warranty Description | One year warranty |
| Model Number | REN012 |
| Number of Pieces | 2 |
| Set Name | H4 Relay Harness Kit (2 Relays, 2 Headlight Sockets) |
| UPC | 653437481913 |
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