1. Product Overview
The CULMKARI Auxiliary Switch Upfitter Wiring Harness Kit is designed to integrate seamlessly with your vehicle's electrical system, enhancing the functionality of auxiliary switches. This kit provides the necessary wiring and connectors to facilitate the installation of additional electrical accessories, ensuring reliable performance.

Image: Overview of the CULMKARI Auxiliary Switch Upfitter Wiring Harness Kit components.
2. Compatibility
This wiring harness kit is specifically designed for the following vehicle models and years:
- Dodge Ram 3500: 2013, 2014, 2015, 2016, 2017, 2018
- Dodge Ram 4500: 2013, 2014, 2015, 2016, 2017, 2018
- Dodge Ram 5500: 2013, 2014, 2015, 2016, 2017, 2018
It replaces part number 68209998AC. Please verify your vehicle's year, model, and the original equipment (OE) part number before purchasing to ensure proper fitment.

Image: Visual representation of compatible Dodge Ram models and years.

Image: Connectors and the replaced part number for verification.
3. Package Contents
The CULMKARI Auxiliary Switch Upfitter Wiring Harness Kit includes the following components:
- 8x Fat Blade Pigtail Wires
- 8x Narrow Blade Connectors
- 1x Black PTO Connector
- 1x Gray Rear Power Connector
- 1x 2-Wire Connector
- 1x 4-Wire Connector

Image: All components of the wiring harness kit, including various wires and connectors.
4. Product Features
- High Quality Material: Constructed from premium ABS material, ensuring durability, wear resistance, and anti-strike properties. The material is also waterproof, contributing to a long service life and excellent performance.
- Enhanced Functionality: Designed to improve the performance and reliability of your vehicle's auxiliary switch system.
- Easy Installation: Features a plug-and-play design, requiring no special tools for installation. This saves time and effort during setup.

Image: Close-up view highlighting the quality of the terminals and wiring.

Image: Connectors demonstrating the product's quality and a reminder to check compatibility.
5. Installation Guide
The CULMKARI Auxiliary Switch Upfitter Wiring Harness Kit is designed for straightforward, plug-and-play installation. Follow these general steps:
- Safety First: Before beginning installation, ensure your vehicle's ignition is off and the battery is disconnected to prevent electrical shorts or injury.
- Locate Connection Points: Refer to your vehicle's service manual to identify the specific auxiliary switch wiring harness connection points. These are typically located near the fuse box or under the dashboard.
- Connect the Harness: Carefully plug the appropriate connectors from the CULMKARI kit into the corresponding vehicle harness receptacles. Ensure all connections are secure and fully seated.
- Route and Secure Wiring: Route the new wiring harness safely away from moving parts, heat sources, and sharp edges. Use zip ties or electrical tape to secure the wiring, preventing chafing or accidental disconnection.
- Reconnect Battery and Test: Once all connections are made and secured, reconnect your vehicle's battery. Turn the ignition on and test the functionality of your auxiliary switches and any newly connected accessories.
Note: While this kit is designed for easy installation, professional installation is recommended if you are unfamiliar with automotive electrical systems.

Image: Example of connectors for installation, demonstrating the plug-and-play nature.
6. Operating Instructions
Once the CULMKARI Auxiliary Switch Upfitter Wiring Harness Kit is correctly installed, your vehicle's auxiliary switches will operate as designed by the manufacturer. The harness facilitates the electrical connection between your vehicle's existing system and any accessories you choose to connect via the auxiliary switches. Refer to your vehicle's owner's manual for specific instructions on operating your auxiliary switches.
7. Maintenance
This wiring harness kit requires minimal maintenance. To ensure long-term performance:
- Periodic Inspection: Periodically check all connections to ensure they remain secure and free from corrosion.
- Keep Dry: Ensure the harness and its connections are kept dry and free from excessive moisture.
- Cleanliness: If necessary, gently clean any accumulated dirt or debris from the connectors using a soft, dry cloth.
8. Troubleshooting
If you experience issues after installing the wiring harness, consider the following troubleshooting steps:
- No Power to Accessories:
- Verify all harness connections are fully seated and secure.
- Check the vehicle's fuses related to the auxiliary switches and the connected accessories.
- Ensure the vehicle's battery is properly connected and charged.
- Incorrect Functionality:
- Double-check that the harness is compatible with your specific vehicle model and year.
- Confirm that the correct wires are connected to the intended auxiliary switch functions.
If problems persist, please contact CULMKARI customer support for assistance.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | CULMKARI |
| Model Number | AUTOLX-078 |
| Replaces Part Number | 68209998AC |
| Material | ABS |
| Item Weight | 0.32 Kilograms (11.3 ounces) |
| Connector Type | Fat Blade, Narrow Blade, Black PTO, Gray Rear Power, 2 Wires, 4 Wires |
| Wire Diameter | 0.08 Inches |
| Package Dimensions | 9.61 x 6.46 x 1.38 inches |
10. Warranty and Customer Support
CULMKARI is committed to providing high-quality products and excellent customer service. If you have any questions regarding the installation, operation, or compatibility of this product, our experienced customer service team and professional technicians are available to resolve inquiries promptly and provide support.
For assistance, please refer to the contact information provided with your purchase or visit the official CULMKARI store on Amazon: CULMKARI Store.