Will this work on a 1985 four runner?

jeez...every three months the same question...It'll work great if you're intent is to to set your vehicle on fire and collect the insurance...IT'S GARBAGE!! ...the wire is criminally undersized for the application...it should be 14-16g but it's only 22g ...this can cause it to overheat, melt the insulation and start a fire.....

Did not come with manual, where can I find it online?

Dear customer, Pretty sorry for this trouble. Kindly please send email to kaslight2@outlook.com, we will send you the manual accordingly

Will this work on an 87 toyota pickup ?

I installed it on my 88 Toyota pickup 2wd. The high beam did not work. The high beam relay would work but would not turn the high beam on. Found the wiring on load side of the relay was wired wrong so I had to pull the wires out and relocate them. High and low work good now. If the relays work, but won't turn the lights on, the issue is on the load side. Check the wiring on the relays.

Will this work on a 93 chevy blazer if not what harness would?

I dont know alot about Chevy blazer but work great in my 93 XJ. I dont see why not,

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Toyota Headlight Relay H4 Harness Kit - 1Set 2 H6054 Wiring for 95-97 Tacoma 88-95 Pickup - Fix Dual Ground Problem

Toyota Headlight Relay H4 Harness Kit - 1Set 2 H6054 Wiring for 95-97 Tacoma 88-95 Pickup - Fix Dual Ground Problem

Product ID: 256037056

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Details

Brand
KASLIGHT
Light source type
Light Emitting
Included components
H4 Headlight
Wattage
3.6E+2
Fit type
Vehicle Fit

⚡30A fuse for circuit protection

💡Boosts brightness of dim H4 headlights

🔧Plug & play H4 relay harness

Description

💡 Illuminate your drive, ditch the dim — never settle for less than brilliant!

CIRCUIT GUARDIAN - Built-in 30A fuse safeguards your vehicle’s electrical system from overloads
DUAL GROUND FIXER - Eliminates flickering & malfunctioning in Toyota Tacoma & Pickup dual ground systems
PLUG PLAY SIMPLICITY - Easy installation with direct fit for 7x6, 5x7 H4 LED headlights—no guesswork needed
UNIVERSAL COMPATIBILITY - Perfect match for Toyota, Jeep, Subaru, Mitsubishi & Suzuki with H4 plug headlamps
NIGHT VISIBILITY UPGRADE - Transforms dim, flickering headlights into bright, reliable illumination for safer drives

This Toyota Headlight Relay H4 Harness Kit is a must-have upgrade for 95-97 Tacoma and 88-95 Pickup owners facing dual ground wiring issues causing dim or flickering headlights. Featuring a plug-and-play design with a 30A fuse for circuit protection, it ensures your 7x6 or 5x7 H4 LED headlights operate at peak brightness and reliability. Compatible with multiple vehicle brands, this harness fixes common electrical faults, enhances night visibility, and safeguards your car’s lighting system.

Specifications

Light colour	4000K Cool White, 6500K Bright White
Auto part position	Inner
UPC	653437481838
Automotive Fit Type	Vehicle Specific Fit
Manufacturer	KASLIGHT
Package Dimensions	17.91 x 11.3 x 7.19 cm; 340 g
Item model number	8542081869
Manufacturer Part Number	KAJE-0003
Special Features	【Professionally fix dual ground problems(Malfunctioning or Dimming) of cars with 2 pcs h4 plug headlmaps, such as Toyota 95-97 Tacoma 88-95 Pickup and other cars with same problems 】; 【Well protect the car circuit if there is any abnormal situation occur】；【Make your Dim H4 headlights much more brighter】
Lift Type	Automatic
Voltage	12 Volts
Item Weight	340 g

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