The APDTY 156205x2 headlight jumper wire wiring harness set is a direct replacement for damaged or corroded headlight connectors on Ram 1500, 2500, 3500, 4500, and 5500 pickups equipped with quad halogen headlamps (option code LEM). This pair includes both left and right side harnesses, restoring proper electrical connection between your truck's main wiring and the headlight assemblies when the original connectors fail.
Key Takeaways
- Includes both left and right headlight jumper wire harnesses in one kit
- Fits 2009-2020 Ram 1500-5500 trucks with quad halogen headlamps ONLY (LEM option code required)
- Replaces OE part numbers 68193062AB and 68193062AA
- Repairs common headlight flickering, dim output, or complete failure caused by connector corrosion
- Direct-fit solution requiring no wire splicing when installed properly
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What Does the Headlight Jumper Wire Harness Do?
The headlight jumper wire harness creates the electrical connection between your Ram truck's main body wiring and the headlight assembly. This short connector harness bridges the gap where vibration, heat, and moisture exposure commonly cause electrical problems. When functioning properly, it delivers clean power to your headlight bulbs for full-brightness operation.
Over time, the connector terminals inside the factory harness corrode from moisture intrusion, causing high resistance. This results in dim headlights, flickering operation, or complete headlight failure even when bulbs are good. The APDTY 156205x2 harness set replaces both left and right side connectors to restore factory-specification electrical flow.
What Are the Symptoms of a Failed Headlight Wiring Harness?
Failed or corroded headlight wiring harnesses typically show these warning signs:
- Intermittent headlight operation: Lights flicker, dim, or turn off and on while driving, especially over bumps
- One headlight significantly dimmer: Corroded connector creates resistance, reducing brightness on one side
- Complete headlight failure: No light output despite new bulbs and working fuses
- Melted connector housing: Visible heat damage or melted plastic at the headlight plug, indicating high resistance and arcing
- Check engine light or warning messages: Some Ram models trigger dash warnings when headlight circuit resistance is detected
- Connector corrosion: Green, white, or black buildup visible on connector terminals
If you experience these symptoms and have already verified bulb condition and fuse integrity, the jumper wire harness is the likely culprit. Corrosion at this connection point is a well-documented issue on Ram trucks operated in humid climates or areas where road salt is used.
Which Ram Trucks Does the APDTY 156205x2 Fit?
This harness set fits ONLY Ram trucks equipped with quad halogen headlamps (option code LEM). Verify your vehicle has this option code before ordering, as Ram trucks with projector-style or LED headlamps use different connectors and are NOT compatible with this part.
| Vehicle | Years | Requirements |
|---|---|---|
| Ram 1500 Pickup | 2009-2020 | Quad halogen headlight bulbs (LEM option) |
| Ram 2500 Pickup | 2010-2020 | Quad halogen headlight bulbs (LEM option) |
| Ram 3500 Pickup | 2012-2018 | Quad halogen headlight bulbs (LEM option) |
| Ram 4500 Pickup | 2012-2018 | Quad halogen headlight bulbs (LEM option) |
| Ram 5500 Pickup | 2012-2018 | Quad halogen headlight bulbs (LEM option) |
| Ram Laramie | 2019 | Quad halogen headlight bulbs (LEM option) |
This part replaces OE part numbers 68193062AB and 68193062AA. If your vehicle is not listed above or you are unsure about your headlight configuration, check the live compatibility chart on the product page or consult your vehicle's build sheet to confirm the LEM option code is present.
What Are the Specifications of This Harness Set?
| Specification | Details |
|---|---|
| Part Number | APDTY 156205x2 |
| Replaces OE Numbers | 68193062AB, 68193062AA |
| Quantity Included | Two harnesses (left and right) |
| Fitment Requirement | Quad halogen headlamps with LEM option code only |
| Connector Type | Direct plug-in, OE-style terminals |
| Condition | Brand new |
How Do You Install the Headlight Jumper Wire Harness?
Installing the APDTY 156205x2 headlight wiring harness set requires basic hand tools and mechanical aptitude. This is a popular DIY repair for Ram truck owners who want to restore proper headlight function without expensive dealer service.
General installation steps:
- Disconnect the battery negative terminal to prevent electrical shorts during the repair.
- Access the back of the headlight assembly by opening the hood. On some models, you may need to remove the headlight assembly for easier access to the connector.
- Disconnect the old harness from both the main body wiring and the headlight assembly. Note the orientation before removal.
- Inspect the mating connectors on both the headlight and body harness for corrosion. Clean if necessary, or replace the headlight assembly if its connector is severely damaged.
- Connect the new APDTY harness between the body wiring and headlight assembly, ensuring connectors click fully into place.
- Secure the harness using factory routing clips to prevent vibration damage.
- Reconnect the battery and test headlight operation in all modes (low beam, high beam, parking lights).
- Repeat for the opposite side.
While this repair does not require specialized tools, always follow safe electrical work practices. If you are not comfortable working with automotive electrical systems, professional installation is recommended.
Frequently asked questions
Will this harness work if I have LED or projector headlights on my Ram?
No. The APDTY 156205x2 fits ONLY Ram trucks with quad halogen headlamps and LEM option code. LED and projector-style headlights use different connectors and require different parts.
Do I need to replace both sides even if only one headlight is having problems?
While you can replace only the failed side, replacing both harnesses together (as this kit provides) is recommended because the opposite side often fails soon after the first due to similar age and exposure conditions.
What OE part numbers does this replace?
This harness set replaces Mopar OE part numbers 68193062AB and 68193062AA.
Can I splice this harness into my existing wiring if the connectors don't match?
This harness is designed as a direct plug-in replacement for vehicles with the correct LEM option code. If connectors do not match, verify your vehicle fitment before attempting any modifications, as splicing may indicate an incorrect application.
The APDTY 156205x2 headlight jumper wire wiring harness set provides a complete, factory-quality solution for corroded or damaged headlight connectors on 2009-2020 Ram trucks equipped with quad halogen headlamps. By replacing both left and right harnesses together, you restore full electrical integrity to your headlight system and eliminate the frustration of flickering or dim lights. Verify your vehicle has the LEM option code to ensure proper fitment, then follow standard electrical safety practices during installation to complete this straightforward repair and get your Ram's headlights back to full brightness.
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