I see there is a connector in the picture that says "to headlamp socket" would that go into the original headlight socket? If so which side?

The black connector plugs into the female wiring socket that you removed from one of the headlights. The two yellow male terminals get plugged into the back of headlights. You will have to install the black connector into the headlight harness on the side nearest the battery. Mount the relays, battery feed and that side's ground strap in the same area. The long extension to the other headlight gets into the back of the headlight after you removed the terminal. Install that side's ground. That original female terminal that was on that headlight will no longer be used. Tape it up and secure out of the way.

Does this work with a 1986 Toyota pickup?

Yes it does I have it on my 88 4runner

Does this work on 2004 honda crv?

Probably don’t need it. This is for very old vehicles that Cannot regulate the amperage to the LEDs. If your LED lamps flicker when you install them, this should solve it though....... I think.

Will this relay kit work on a 1992 Dodge D-250 Diesel?

Sorry, the fitment said not fit your car.

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Partsam 1Set H4 Headlight Relay Harness Kit for 7x6 5x7 H6054 Headlights Heat Ceramic Wiring Harness Compatible with Pickup Headlights 88-95, Tacoma 95-97 Fix Dual Ground Problem

Partsam 1Set H4 Headlight Relay Harness Kit for 7x6 5x7 H6054 Headlights Heat Ceramic Wiring Harness Compatible with Pickup Headlights 88-95, Tacoma 95-97 Fix Dual Ground Problem

Product ID: 527244982

Details

Auto Part Position
Rear
Brand
Partsam
Light Source Type
Light Emitting
Manufacturer
Partsam
Number of Pieces
1

⚡80A max input current

🔌Plug-n-play 2m wiring harness

🔥High-temp ceramic sockets

S/.388

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Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Light the Night Like a Pro — Upgrade Your Ride’s Vision Instantly!

BUILT TO LAST - Premium polyethylene and waterproof relays ensure durability and corrosion resistance.
DUAL BEAM MASTERY - Fixes flickering, dimming, and backfeed issues for seamless Hi/Low beam operation.
EFFORTLESS UPGRADE - Plug-n-play design with 2-meter cable means zero wiring mods—just install and drive.
POWER UP WITH CONFIDENCE - Dual 80A relays deliver robust, reliable current flow for flawless headlight performance.
STAY COOL UNDER PRESSURE - Heat-resistant ceramic sockets prevent overheating and extend component lifespan.

The Partsam H4 Headlight Relay Harness Kit is a high-quality, plug-and-play upgrade designed for 12V vehicles using H4/9003 style headlights. Featuring dual 80A waterproof relays and heat-resistant ceramic sockets, it solves common issues like flickering, dimming, and overheating. Compatible with Jeep, Tacoma, and other pickups, this 2-meter harness enhances headlight reliability and longevity while protecting your vehicle’s electrical system.

Specifications

ASIN	B078XV8PL7
Auto Part Position	Rear
Brand Name	Partsam
Country of Origin	USA
Customer Reviews	4.5 4.5 out of 5 stars (532)
Item Weight	0.31 Kilograms
Light Source	Light Emitting Diode (LED)
Manufacturer	Partsam
Manufacturer Part Number	GTCV-0440275598
Model	GTCV-0440275598
Number of Pieces	1
Voltage	12 Volts

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