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[ALL STAR TRUCK PARTS] 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set

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4.3 156 ratings

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This Harness Fixes:
Dim Headlights, Flickering Headlights, Back Feeding Power, Malfunctioning Headlights when using Hi/Low Beams
Also fixes: Overloading the Headlight Switch, Overheating Plugs
If you are upgrading to Halogen Bulbs or are having trouble with your 7"6", 4x6", 5-3/4" or any other H4 plug headlights not working properly, this is your fix!!
THIS HARNESS BYPASSES THE POWER DRAW FROM THE HEADLIGHT SWITCH AND PULLS THE POWER DIRECTLY FROM THE CARS BATTERY, BUT STILL USES THE STOCK HEADLIGHT SWITCH TO ACTIVATE THE RELAYS TO TURN THE HEADLIGHTS ON AND OFF.

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[ALL STAR TRUCK PARTS] 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set

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Parts N Go 4x6 Rectangular Plain Conversion Headlights Kit Sealed Beam Glass Lights with Halogen High/Low Bulbs Compatible wi

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Partsam H4 9003 HB2 Wire Wiring Harness Sockets for 4"x6" 7"x6" 5"x7" inch Sealed Beam Car Truck Headlights Pickup Heavy Duty

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Product Description

ONE SET H4 - 2 HEADLIGHT CERAMIC H4 HEADLIGHT RELAY WIRING HARNESS FOR 2 HEADLAMPS LIGHT BULB SOCKET PLUGS 7x6
This is a 7x6" Halogen H4 Headlight Relay Harness with Hi Heat Ceramic Plugs for Cars & Trucks with 2 Headlights - HI and LOW Beams.
If you are upgrading to Halogen Bulbs or are having trouble with your 7"6" headlights not working properly, this is your fix!!
This harness fixes:
- Dim Headlights
- Back Feeding Power
- Flickering Headlights
- Malfunctioning Headlights when using Hi/Low Beams
- Overloading the Headlight Switch Overheating Plugs
THIS IS A H4/9003 12V HEADLIGHT CONVERSION WIRING HARNESS WITH HI HEAT CERAMIC PLUGS FOR CARS THAT HAVE UPGRADED HALOGEN OR XENON H4 BULBS. THE STOCK HEADLIGHT SWITCH CANNOT HANDLE THE NECESSARY POWER NEEDED TO LIGHT THE HI WATT HALOGEN BULBS SO HEADLIGHTS OVERLOAD THE HEADLIGHT SWITCH AND END UP MAKING THE LIGHTS DIM, FLICKER, OR TURN OFF. THIS HARNESS BYPASSES THE POWER DRAW FROM THE HEADLIGHT SWITCH AND PULLS THE POWER DIRECTLY FROM THE CARS BATTERY, BUT STILL USES THE STOCK HEADLIGHT SWITCH TO ACTIVATE THE RELAYS TO TURN THE HEADLIGHTS ON AND OFF. THE CERAMIC PLUGS WONT MELT LIKE STANDARD PLASTIC PLUGS WILL FROM THE HIGHER HEAT THAT HALOGEN BULBS PUT OUT. THIS IS HARNESS IS A DIRECT PLUG AND PLAY WITH ALL THE CORRECT FACTORY STYLE PLUGS FOR THE HIGH AND LOW BEAM HEADLIGHTS!

Product information

Technical Details

Manufacturer

‎All Star Truck Parts

Brand

‎All Star Truck Parts

Item Weight

‎8.8 ounces

Package Dimensions

‎7.52 x 4.8 x 1.5 inches

Is Discontinued By Manufacturer

‎No

Manufacturer Part Number

‎ASTPH44

Additional Information

ASIN

B06XJ771YQ

Customer Reviews

4.3 156 ratings

4.3 out of 5 stars

Best Sellers Rank

#177,831 in Automotive (See Top 100 in Automotive)
#604 in Automotive Replacement Electrical Wiring Harnesses

Date First Available

March 10, 2017

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

Product Warranty: For warranty information about this product, please click here

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	This Item [ALL STAR TRUCK PARTS] 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set	Recommendations Zhushan H4 Headlight Relay Harness Kit, 4 Lights Increase Brightness Accessory for Car, Harness H6054 Relay Harness Wiring Headlight Kit for Tacoma 95-97, 88-95 Pickup Fix Dual Ground	dummy Headlight Wiring Harness 95563123911	dummy LEDKITO H4 Headlight Relay Harness Kit for 7x6 5x7 H6054 Headlights Heat Ceramic Wiring Harness Compatible with Je ep Cherokee Offroad Truck Chevy with H6014 H6052 H6054LL Fix Dual Ground Problem	dummy H4 Headlight Relay Harness Kit for 7x6 5x7 H6054 Headlights, h4 9003 Relay Harness H4 Headlight Relay Kit Compatible with Subaru, 95-97 Tacoma, 88-95 Pickup 4 Runner Fix Dual Ground Problem	dummy Audak 2 Pcs H13 9008 Male to H4 9003 Female Wiring Harness Adapters for Headlights or Fog Lights
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	$20.50	$14.88	$60.00	$14.99	$15.99	$8.99
Delivery	Get it as soon as Thursday, May 16	Get it as soon as Thursday, May 16	—	Get it as soon as Thursday, May 16	Get it as soon as Thursday, May 16	Get it as soon as Thursday, May 16
Customer Ratings	4.3156	4.012	4.815	4.267	4.116	4.4366
Value for money	4.1	—	—	4.0	4.2	4.3
Easy to install	3.9	—	—	4.1	3.8	4.6
Weatherproof	3.8	—	—	3.3	3.7	—
Sold By	All Star Truck Parts	zhushanele	Porsche Chandler Parts Store	Kito-Light	RoadandLord	Audak
material	Ceramic	Polycarbonate (PC)	Copper	Plastic	Acrylonitrile Butadiene Styrene, Co	Copper

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Customer reviews

4.3 out of 5

156 global ratings

How customer reviews and ratings work

Customers say

Customers like the performance of the cable assembly, saying it works great and is easy to install. They also mention that it works perfectly with their new LED lights. However, some customers have reported issues with the wire size, saying the power source wire came up a little short and the internal wire seems to be 16 gauge or even smaller. Opinions are mixed on ease of installation, quality, and value.

AI-generated from the text of customer reviews

21 customers mention16 positive5 negative

Customers like the performance of the cable assembly. They say it works great, easy to install, and works perfectly with their new LED lights. Some say it's a high quality harness and works great on their bus rewire. Some customers also mention that the headlight switch is working normally.

"This worked great on our bus rewire." Read more

"...The price is great, the speed of delivery is pretty good. The product is okay but not as plug and play as stated...." Read more

"Harness is great so far, but time will tell. I installed this yesterday on 1962 Ford Thunderbird...." Read more

"...So my next best guess is that the relay is not working properly or at all. So I’m buying another one to test the relays make sure they work properly...." Read more

21 customers mention14 positive7 negative

Customers are mixed about the ease of installation. Some mention it's easy enough to install, while others say it'll save them loads of hassle.

"...harness has two wires that go to the battery and four ground wires, very simple...." Read more

"...The product is okay but not as plug and play as stated...." Read more

"...ends of harness to reach everything, but was still well worth it for the ease of install. Just needed 1 plug adaptor snd it was plug and play." Read more

"Saves loads of hassle, I converted my 1979 Mustang from sealed beam to H4 headlights which requires the installation of relays this harness totally..." Read more

16 customers mention9 positive7 negative

Customers are mixed about the quality of the cable assembly. Some mention that it's well-made, while others say that it is poorly made, with wire connections bending and breaking off. The connectors are also very brittle and cracked on installation.

"The quality seem good, but if you have a PWM headlight circuit like my 2007 Jeep JK, relays will buzz..." Read more

"Only giving it 3 stars because I’m pretty sure one relay came in busted. As you can see in the photo one is lit and the other is not...." Read more

"The harness is made well. But a larger gage of wire would be better." Read more

"4 stars because the construction feels a little cheap. However, it's been treating me good so far with no issues...." Read more

13 customers mention8 positive5 negative

Customers are mixed about the value of the cable assembly. Some mention it's good value, and a decent kit, while others say it'll bend and break off. The sockets are ceramic, but the quality is low and it'd be better to make your own harness.

"Needed to upgrade 32yr old headlamps on a Grand National. The price is great, the speed of delivery is pretty good...." Read more

"Wiring is light gauge. Headlamp sockets are ceramic, but low quality. Worth the price if you don't want to make your own harness." Read more

"...Quick delivery and price is cheapThe bad:..." Read more

"Good value." Read more

14 customers mention2 positive12 negative

Customers are dissatisfied with the wire size of the cable assembly. They mention that the power source wire came up a little short, the internal wire seems to be 16 gauge, and the harness only has 6 wires. Some say that one wire is missing from the lower connector on both sides, and that the harness requires 8 wires to power 2 filaments per bulb. They also say that the wires are undersized for expected load, and are backwards.

"...will want some automotive electrical experience since not wired correctly at plugs for bulbs...." Read more

"...into the housing so when connected to male connector, female wire pushed out for no connection...." Read more

"...to find that the thickness is all insulation and the internal wire seems to be 16 gauge or maybe even smaller...." Read more

"...Power wire to battery is a tad short and I had to extend mine. Other than that pretty good relay harness" Read more

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Nathan Scarborough

Works as expected.

Reviewed in the United States on March 11, 2024

Verified Purchase

This worked great on our bus rewire.

Helpful

Steven L Young

Let there be light

Reviewed in the United States on February 9, 2024

Verified Purchase

This harness enables your headlights to run directly off the battery. The harness just plugs into your existing headlight socket so your headlight switch still operates the headlights. The new harness has two wires that go to the battery and four ground wires, very simple. Take a picture of your headlights before and after, you will be amazed at the difference.

Helpful

Amazon Customer

A little less plug & play then stated.

Reviewed in the United States on March 4, 2020

Verified Purchase

Needed to upgrade 32yr old headlamps on a Grand National. The price is great, the speed of delivery is pretty good. The product is okay but not as plug and play as stated. You will want some automotive electrical experience since not wired correctly at plugs for bulbs. You will need to research your headlamps wiring and verify pins. I had to swap all terminals around to get lamps to function properly and not feed back in system. Also, relays are different ratings and needed to swap after correcting connections in plugs. The lamps would cut off after 30 seconds with high beams on, it was over powering the weaker relay installed in the wrong spot. After fixing these issues works good. Not a show quality harness. But, as a daily driver and use item I am please. Just research your wiring for car and be patient. It will work.

6 people found this helpful

Helpful

Rhett Bigham

Harness is great so far

Reviewed in the United States on February 15, 2018

Verified Purchase

Harness is great so far, but time will tell. I installed this yesterday on 1962 Ford Thunderbird. A little surprised it came with zero instructions, but did a quick You Tube search for a tutorial for installation. I had installed halogen receptacles & bulbs for 4 headlights, but had some trouble with lights going off while on bright. Realized I needed this relay so increased amps would not be going through headlight switch & dimmer switch on floor. After installation I realized it had probably damaged $9 dimmer switch on floor, so replaced that too. So far headlight switch is working normally.

3 people found this helpful

Helpful

MARK M.

Well made conversion harness..

Reviewed in the United States on December 26, 2020

Verified Purchase

I used this for a square headlight C4500 topkick. I had to extend both ends of harness to reach everything, but was still well worth it for the ease of install. Just needed 1 plug adaptor snd it was plug and play.

One person found this helpful

Helpful

Amazon Customer

Not sure how I feel atm. Going to buy another one.

Reviewed in the United States on June 9, 2022

Verified Purchase

Only giving it 3 stars because I’m pretty sure one relay came in busted. As you can see in the photo one is lit and the other is not. According to the direction one relay for high beams one for low beams. I have the same problem as most did. High beams on all the time. This is for a 1985 Nissan 720 pickup. I tried to re-pin the connectors at the bulb and at the “ low beam plug “ nothing worked. So my next best guess is that the relay is not working properly or at all. So I’m buying another one to test the relays make sure they work properly. You can see in the photo one is lit and the other is not. So we will see. It won’t let me exchange it so…

2 people found this helpful

Helpful

Magpie

Saves loads of hassle, I converted my 1979 Mustang ...

Reviewed in the United States on April 29, 2018

Verified Purchase

Saves loads of hassle, I converted my 1979 Mustang from sealed beam to H4 headlights which requires the installation of relays this harness totally does the job. One item to remember, you require either the Hella HL66490 adapter to install between the cars lights harness and this harness or where this harness plugs into the cars light harness you have to swop the ground wire with the control wire in the plug connector.

2 people found this helpful

Helpful

Dan Hyduke

good value

Reviewed in the United States on December 12, 2019

Verified Purchase

works fine, but came with a problem. after much frustration with only bright lights turning on, found one of the female wire ends didnt snap tight into the housing so when connected to male connector, female wire pushed out for no connection. of course this was not visible so hard to detect because everything appeared connected. ck that all ends are fully snapped into their plastic housings.

2 people found this helpful

Helpful

Top reviews from other countries

PDS

Good, but not great

Reviewed in Canada on January 6, 2023

Verified Purchase

This will probably be sufficient for most people, but for me, I needed all four sockets to be hi beam compatible and they aren't. One is hi/low beam and the other is just low in each pair, and there is no way to really change that due to how the connectors are done in the socket. The quality of the sockets also seemed a little iffy. Probably fine but I just didn't get a warm and cuddly off them so since I needed all 4 hi/low ended up getting new sockets, cutting the old ones off and wiring the new ones on in full hi/low. All good now.

David Bruce

Items as ordered.

Reviewed in Australia on June 14, 2022

Verified Purchase

The product is to be used in a classic car to remedy an headlight problem.

Amazon Customer

Good product

Reviewed in Canada on August 15, 2018

Verified Purchase

Great product but found that some of the Ceramic was very brittle chipped easily

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[ALL STAR TRUCK PARTS] 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set

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Stop/Turn/Tail Lighting

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