H4 Headlight Conversion Kit w/ Night Lighter Harness for 66-77 Bronco

Name: H4 Headlight Conversion Kit w/ Night Lighter Harness for 66-77 Bronco
Brand: WH
Price: 139.99 USD
Availability: InStock
Rating: 4.87 (15 reviews)

Item #: 6086W

The complete kit to upgrade to the brighter H4 Headlights. Includes the Night Lighter Headlight Harness Kit.

Read 15 Reviews | Write a Review

Read 3 Customer Questions | Ask a Question

Installation PDF

Price: ~~$139.99~~

Description

H4 Headlight Conversion Kit
This is a great H4 headlight upgrade kit. These can be powered through the stock wiring but we always recommend wiring upgrade when running H4s.

Multi-surface reflector with clear glass lens provides a modern look. It's strong, durable and impact resistant.

60% more luminous bean than conventional sealed beam lights.

SAE/DOT approved street legal 55-60 watt bulbs.

Easy install for all factory replacement 7" round headlights.

Night Lighter Headlight Harness
Here is our new Night Lighter Headlight Harness. The old Bronco light switch can barely handle the current needed to run stock headlights. Maybe you have had the flickering Bronco headlight syndrome. The stock headlight switch definitely can't handle the current needed to run modern H4 bulbs. How the Bronco is wired is the power runs from the battery into the dash, branches off a few times, then into the headlight switch. The headlights are then drawing power from this switch. What that means is after all the voltage drops you end up with 9-10 volts at the headlights. These harness use a relay system to put direct battery voltage (often 14.4 volts)directly to your headlights creating a brighter light.

Plug the harness in and the old light switch activates the new harness and the load bearing relays to bring power from the battery directly to the headlights. The harness is all "plug and play" and very simple to install.

WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
www.P65Warnings.ca.gov

H4 Headlight Conversion Kit w/ Night Lighter Harness for 66-77 Bronco
Item #: 6086W

Qty.

~~$139.99~~

Installation

Installation Instructions

Product Reviews

Write a review

Great Lights!

Nov 16, 2022 | By Pete R

Install was super easy. The lights illuminate the trail ahead significantly better than my old sealed beam halogens. They look great too... A little old school yet a touch of modern.

Big improvement over stock. Could use some tweaks.

Jan 13, 2022 | By Bryan Welsh

Relay harness and lights appear well built. Delivery was prompt. WH did a good job of communicating. Relatively easy to install - though lights interfere with spring bracket in bucket a bit. Also seems to hang them up a bit when adjusting beam. Once all tucked in and aligned is fine. Regarding Harness: Suggest it come with a fuse rather than the white connector. All circuits in my Bronco are to be fused to eliminate risk of short on positive terminal. = potential meltdown. Black ties would be preferred to white, since the wire harness is black. Directions could use: Explain what the angle brace and bolt is for. Give a suggested wire routing. (though since these are probably universal that may not be appropriate). In the case of a Bronco, it is necessary to remove the battery, not just disconnect it, to make the install. Regarding Lights: As noted above, interference with spring bracket. This is the rubber boot. No instructions provided. Particularly, what direction to point the two rubber "vents" on the boot would be good to know. I pointed them down and away from the spring bracket as they made the interference worse. Thank you.

Big improvement

Apr 26, 2021 | By Tracy

These new headlights are a vast improvement from my old headlights. The brightness was remarkably better. Much safer. They were an easy swap-out.

Brightest Lights

Mar 23, 2021 | By John

Best lights I have ever seen on a 1975 Ford Bronco. Install wasn't too bad. Just make sure you have a good clean ground connection.

Headlight solution

Jan 6, 2020 | By Frank

This Halogen headlight setup with relays & harness solve the mystery flickering headlight gremlins I had lurking in the Bronco. The light is also whiter and brighter than the sealed beam lights I was using prior. This is a "must have" if you ever drive your Bronco at night.

Looks great!

Aug 27, 2019 | By Dean T.

Upgrading with this kit makes a big difference in stock sealed beam. They look great and fit. I also installed LED bulbs and they're even brighter and whiter.

Epic!!

Oct 29, 2018 | By Jacob Jaeckle

Great product! Easy to install, look great, work great!

H4 headlights

Jul 29, 2018 | By jeff bohn

Very nice upgrade. Was easy to put in, looks good and much better than original lights for driving at night.

Light up the Night

May 7, 2018 | By Jim

Good Quality and fit

Fantastic!

Apr 26, 2018 | By Sam Botkin

Products are always what they have represented, and delivered in a timely manner. I hooked up the kit right away and am more than pleased with the results! Thank you Wild Horses!

H4 headlight conversion with Night Lighter Harness

Apr 17, 2018 | By Matt Quaresma

Great product as always from Wild Horses. Easy plug and play works great!

H4 Headlight Conversion Kit w/ Night Lighter Harness

Dec 5, 2017 | By Tyler Doin

Very straight forward install....and, wow, what a difference in light output!

Awesome

Jan 12, 2017 | By Peggy Siverly-Gray

You guy's were very helpful and I have a happy husband! Thank you for your help!

H4 heatlight kitw/harness

Jan 10, 2017 | By bill noelle

Well Pleased. excellent upgrade. easy install

wiring harness

Jan 20, 2016 | By c helm

good product just needs some simple instruction on the wiring harness installation