To see product details, add this item to your cart. You can always remove it later.
Ships from
Ships from
Returns
Returnable until 31 Jan 2026
Returnable until 31 Jan 2026
For the 2025 holiday season, eligible items purchased between 1 November and 31 December 2025 can be returned until 31 January 2026.
Support
Product support included
What's product support?
In the event that your product does not work as expected or you need help using it, 鶹 offers free product support. To access this option, go to Your Orders and choose Get product support.
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Added to

Sorry, there was a problem.

There was an error retrieving your wish lists. Please try again.

Sorry, there was a problem.

List unavailable.
  • VIDEO
4-Headlight Relay Wiring Harness with Ceramic SocketsAll Star Truck Parts
  • 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set
  • To view this video, download

4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set

4.1 out of 5 stars 173 ratings

To see product details, add this item to your cart. You can always remove it later.

Purchase options and add-ons

About this item

  • 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.

Frequently bought together

This item: 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set
$32.29
Get it by Saturday, Nov 22
In Stock
Sold by All Star Truck Parts and ships from 鶹 Fulfillment.
+
$175.24
Get it Nov 25 - 27
Only 3 left in stock.
Ships from and sold by Cosmic Star.
Total price:$00
To see our price, add these items to your cart.
Details
Added to Cart
Some of these items ship sooner than the others.
Choose items to buy together.
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

Videos for similar products

Brand in this category on 鶹

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
Parcel Dimensions ‎19.1 x 12.2 x 3.8 cm; 249 g
Item model number ‎ASTPH44
Is discontinued by manufacturer ‎No
Manufacturer part number ‎ASTPH44
Item Weight ‎249 g

Additional Information

ASIN B06XJ771YQ
Customer Reviews
4.1 out of 5 stars 173 ratings

4.1 out of 5 stars
鶹 Rank
Date First Available April 12 2017

Feedback

4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set


Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

Price Availability
/
/
/
/
Please sign in to provide feedback.

Brands in this category on 鶹

Product Summary: 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set

From All Star Truck Parts

4.1 out of 5 stars, 173 ratings

Customer reviews

50+ viewed in past month

Price

No featured offers available

Other sellers

Other sellers

About this Item

  • 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.

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!

Feedback

Did you find this product summary feature useful?

Thank you for your feedback
Thank you for your feedback. You selected “Yes, it is useful”
Thank you for your feedback. You selected “No, it is not useful”
Product summary presents key information. Close to see all product details.