About this itemThis Harness Fixes:-Upgrade your vehicle’s headlights with this high-performance 4-headlight relay wiring harness. Perfect for cars, trucks, SUVs, and motorcycles equipped with 4 headlights, this harness enhances the brightness, reliability, and longevity of your headlamp system.-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 BATTE...
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Factory direct sales
4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set
About this item
This Harness Fixes:
-Upgrade your vehicle’s headlights with this high-performance 4-headlight relay wiring harness. Perfect for cars, trucks, SUVs, and motorcycles equipped with 4 headlights, this harness enhances the brightness, reliability, and longevity of your headlamp system.
-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.
-Upgrade your headlights for a significantly brighter and more reliable driving experience today!
Superior Performance:
100% Copper Coil/Wiring for superior conductivity
Enhanced durability and flexibility
Corrosion and heat-resistant materials
Delivers 30-50% brighter light compared to standard setups
Additional Information:
Meets DOT/SAE requirements
Direct plug and play with factory-style plugs for easy installation
Do not use with bulbs higher than 100 watts each
Package include:
One set 4-Headlight Relay Wiring Harness(As shown in the picture)
Technical Specifications:
Type: 4-Headlight Relay Wiring Harness
Cable Length: 165CM/1.65M/5.41ft
Voltage: 12V (Not compatible with 24V systems)
Item SpecificsBrand RIDROIDSuitable For HeadlightType Light BulbManufacturer Part Number 1-5.75-9003Interchange Part Number H4-4Bulb Fitment Code H4Surface Finish CERAMIC CONNECTORSPlacement on Vehicle Front, Left, RightLighting Technology XenonMPN 4-H4/9003-CR-VR935Light Color Cold WhiteNumber of Bulbs Not include bulbsFeatures Rust-Resistant,Durable, High Heat Resistant, Long LifespanPerformance Part YesCountry of Origin ChinaUniversal Fitment YesVintage Part YesManufacturer Warranty 1 YearBulb Life Hours Up to 30,000 HoursFunction Fixes Dim Flickering Voltage Drop in HeadlightsLength The length is 165CM / 1.65M / 5.41ft
Payment
1.We accept PayPal only via Secure Check-Out.
2.Payment is expected within 7 days of sale close. Unpaid Items will be forfeited per .
3.Immediate payment needs to be processed for items with Add to Cart option so that a
Shipping
1.We do everything we can to ship your orders out as soon as possible.
2.Shipping and Handling:
-->NOTE:Additional shipping fee will be charged for buyers from Puerto Rico, Hawaii, Alaska, Guam, the U.S. military address of the United States and The nonnative American address Please contact our customer service for the details of extra shipping fee,thanks.
-->For domestic economic shipping,It normally takes 2-8 days for delivery.we mayship your order(s) from different warehouses for expedited delivery as weutilize altemative warehouse across the Continental United States.You may upgrade to UPS 3-day Selected which delivery time is typically 1-3 business day.
-->For International Orders,items may be shipped from our warehouse in south China. Both are the same products and same warranty. Duties and taxes may apply. Pleasa check with your country’s Custom and policy for more information.
Returns
Out 60-day Satisfaction Guarantee assures our customers that they will receive all orders promptly and exactly as described. In addition , it allows customers to return new and unused products in their original factory condition for any reason within 30 days from the date of purchase.
Notice:
1.All returns must be pre-approved by Autopartm and have a return merchandise authorization (RMA) number.Unauthorized returns will not be accepted.
2.Buyers are responsible for appropriate packing, returning shipping cost, insurance and returning the item in “new” condition. Used items will not be accepted for return.
3.We will replace the returning item with an identical item, issue a full store credit or a full refund.
Contact Us
Our Working Time:(GMT+8)Monday to Friday,9:00-18:00.
For inquires and customer support, please send your email via email system.
All emails will be responded to within 24 hours during business days.
Welcome to our shop
Factory direct sales
DESCRIPTIONPAYMENTSHIPPINGRETURN POLICYCONTACT US 4-Headlight Relay Wiring Harness H4 Headlamp Light Bulb Ceramic Socket Plugs Set
About this item
This Harness Fixes:
-Upgrade your vehicle’s headlights with this high-performance 4-headlight relay wiring harness. Perfect for cars, trucks, SUVs, and motorcycles equipped with 4 headlights, this harness enhances the brightness, reliability, and longevity of your headlamp system.
-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.
-Upgrade your headlights for a significantly brighter and more reliable driving experience today!
Superior Performance:
100% Copper Coil/Wiring for superior conductivity
Enhanced durability and flexibility
Corrosion and heat-resistant materials
Delivers 30-50% brighter light compared to standard setups
Additional Information:
Meets DOT/SAE requirements
Direct plug and play with factory-style plugs for easy installation
Do not use with bulbs higher than 100 watts each
Package include:
One set 4-Headlight Relay Wiring Harness(As shown in the picture)
Technical Specifications:
Type: 4-Headlight Relay Wiring Harness
Cable Length: 165CM/1.65M/5.41ft
Voltage: 12V (Not compatible with 24V systems)
Payment
1.We accept PayPal only via Secure Check-Out.
2.Payment is expected within 7 days of sale close. Unpaid Items will be forfeited per .
3.Immediate payment needs to be processed for items with Add to Cart option so that a
Shipping
1.We do everything we can to ship your orders out as soon as possible.
2.Shipping and Handling:
-->NOTE:Additional shipping fee will be charged for buyers from Puerto Rico, Hawaii, Alaska, Guam, the U.S. military address of the United States and The nonnative American address Please contact our customer service for the details of extra shipping fee,thanks.
-->For domestic economic shipping,It normally takes 2-8 days for delivery.we mayship your order(s) from different warehouses for expedited delivery as weutilize altemative warehouse across the Continental United States.You may upgrade to UPS 3-day Selected which delivery time is typically 1-3 business day.
-->For International Orders,items may be shipped from our warehouse in south China. Both are the same products and same warranty. Duties and taxes may apply. Pleasa check with your country’s Custom and policy for more information.
Returns
Out 60-day Satisfaction Guarantee assures our customers that they will receive all orders promptly and exactly as described. In addition , it allows customers to return new and unused products in their original factory condition for any reason within 30 days from the date of purchase.
Notice:
1.All returns must be pre-approved by Autopartm and have a return merchandise authorization (RMA) number.Unauthorized returns will not be accepted.
2.Buyers are responsible for appropriate packing, returning shipping cost, insurance and returning the item in “new” condition. Used items will not be accepted for return.
3.We will replace the returning item with an identical item, issue a full store credit or a full refund.
Contact Us
Our Working Time:(GMT+8)Monday to Friday,9:00-18:00.
For inquires and customer support, please send your email via email system.
All emails will be responded to within 24 hours during business days.
All rights reserved.
On Apr 23, 2026 at 07:41:18 PDT, seller added the following information:
