Features
- Battery-Powered Relay Design: Routes power directly from the battery via a relay, enhancing headlight brightness and protecting your factory switch.
- High-Heat Tolerance: Connectors and wiring are rated to withstand extreme temperatures—up to 480°F—for dependable performance during demanding use.
- Rugged Heavy-Duty Cabling: Constructed with durable 16-gauge wiring and hard-insulated plastic plugs to resist wear, heat, and harsh road conditions.
- Plug-and-Play Simplicity: No rewiring is needed—this harness plugs directly into your existing headlight or fog light setup for a fast and clean installation.
- Bulletproof Daily Use: Engineered for demanding environments and frequent use, with materials chosen for resilience and long-term reliability.
- Broad Compatibility: Available in configurations for popular bulb types—including 9004/9007, 9006/9012, H13/9008, and H4—ensuring the right match for your lighting setup.
- OEM-Safe Integration: Maintains use of your factory headlight switch while routing power safely through a reliable external relay.
- Low-Interference Installation: Avoids excess wiring or switch strain—perfect for vehicles with daytime running lights (DRLs), as relay-equipped units are DRL-safe.
- Warranty: Backed by Putco’s 1-year warranty.
- Designed in the USA: Putco Inc., Des Moines, Iowa.
Transform your headlight or fog light system into a high-performance powerhouse with the Putco Heavy-Duty Wiring Harness with Relay. This smart upgrade bypasses your stock headlight switch by drawing clean, uninterrupted power directly from the battery—boosting brightness while relieving stress on your vehicle’s factory wiring.
Built to withstand daily heavy-duty use, the harness features a robust 16-gauge wire setup and a heat-resistant, hard-insulated plastic connector, engineered to withstand temperatures exceeding 480°F—ideal for high-wattage lighting systems. The plug-and-play design mirrors your original connections, ensuring a seamless swap without the hassle of rewiring or splicing. Compatible with bulb types including 9004/9007, 9006/9012, H13/9008, and H4, this kit delivers powerful, reliable lighting backed by Putco’s 1-year warranty for peace of mind.
California Residents: Proposition 65 Warning
THIS PRODUCT ARRIVED WIRED FOR 9007 SYSTEM AND REQUIRED ME TO “REPIN” (REWIRE) TO FUNCTION AS A 9004 SYSTEM IN MY 1987 FORD F150. NO MENTION OF THIS PROCEDURE IN THE ADVERT. NO INSTRUCTIONS CAME WITH THE WIRING HARNESS TO ACCOMPLISH THIS TASK. ITEM MARKED 9007, NO REFERENCE TO BEING COMPATIBLE TO A 9004 SYSTEM. TOUTED TO BE A 100/90 WATT HARNESS AND APPEARING IN THE IMAGES TO HAVE WHITE CERAMIC HEADLIGHT SOCKETS, THEY WERE IN FACT WHITE PLASTIC, NOT FIT TO RUN 100 WATT BULBS. THIS REQUIRED CUTTING THE HARNESS TO ATTACH CERAMIC SOCKETS AS THE PINS WERE NOT INTERCHANGEABLE. ALSO, THE HARNESS DID NOT COME WITH 30 AMP FUSES & HOLDERS, THOSE TOO HAD TO BE ADDED ON, ANOTHER EXPENSE. RUNNING A 100 WATT SYSTEM WITHOUT FUSES IS A VERY RISKY CONCEPT. YOU GET TWO STARS BECAUSE THE WIRING ITSELF WAS ADEQUETE. I DO HAVE SOME CONERNS ABOUT THE QUALITY OF THE RELAYS, GIVEN THE OTHER INADEQUACIES. FOR THE PRICE OF ALMOST $59 I WOULD EXPECT MORE FROM THE PRODUCT. I HAVE UPGRADED IT BUT YET TO INSTALL IT. FOR ANYONE WITH A 9004 SYSTEM I COULD NOT RECCOMMEND THIS PRODUCT.