Demco Fifth Wheel Hitch Installation: A Comprehensive Guide
Installing a Demco fifth wheel hitch is a straightforward process that can be completed with basic tools and some mechanical know-how. However, it's essential to follow the manufacturer's instructions and take necessary safety precautions to ensure a successful installation. In this guide, we'll walk you through the steps involved in installing a Demco fifth wheel hitch, highlighting the key considerations and potential challenges you may encounter.
Pre-Installation Preparation
Before starting the installation process, it's crucial to gather all the necessary tools and equipment. This includes:
- A Demco fifth wheel hitch kit (complete with hitch, installation hardware, and instructions)
- A vehicle-specific adapter or installation plate
- A torque wrench
- A socket set
- A wrench set
- Safety glasses and gloves
Step 1: Choose the Installation Location
The first step in installing a Demco fifth wheel hitch is to select the optimal location for the hitch on your vehicle. This typically involves identifying the crossmember or frame rail on your truck or SUV and determining the best position for the hitch to ensure proper clearance and stability. Consult your vehicle's owner's manual or manufacturer's instructions for guidance on selecting the correct installation location.

Step 2: Remove Existing Hitches or Accessories
Before installing the Demco fifth wheel hitch, you may need to remove any existing hitches, bike racks, or other accessories that could interfere with the installation process. This is particularly important if you're installing a new hitch on a vehicle that previously had a different hitch or accessory. Be sure to remove any nuts, bolts, or other fasteners securing these items in place.
Step 3: Install the Adapter or Installation Plate
The next step is to install the vehicle-specific adapter or installation plate that comes with the Demco fifth wheel hitch kit. This plate is designed to attach to the crossmember or frame rail on your vehicle and provides a solid foundation for the hitch. Consult the manufacturer's instructions for specific guidance on installing this component.
Step 4: Install the Demco Fifth Wheel Hitch
With the adapter or installation plate in place, you can now install the Demco fifth wheel hitch itself. This typically involves attaching the hitch to the adapter or installation plate using bolts or other fasteners provided in the kit. Be sure to tighten these fasteners securely in a star pattern to avoid over-tightening and potential damage to the hitch or vehicle.

Step 5: Secure the Hitch with Bolts and Washers
Once the Demco fifth wheel hitch is attached to the adapter or installation plate, you'll need to secure it with bolts and washers. Consult the manufacturer's instructions for specific guidance on the correct torque specification for these fasteners. It's also essential to ensure that the hitch is properly aligned with the vehicle's frame rail or crossmember to maintain stability and prevent damage.
Step 6: Test the Hitch and Install Additional Accessories
After completing the installation process, it's essential to test the Demco fifth wheel hitch to ensure it's functioning properly. This may involve attaching a trailer or fifth wheel and verifying that the hitch is securely holding it in place. You may also need to install additional accessories, such as a wiring harness or air hose, to complete the installation.
Frequently Asked Questions
Q: What is the maximum weight capacity of a Demco fifth wheel hitch?
A: The maximum weight capacity of a Demco fifth wheel hitch varies depending on the specific model and configuration. Consult the manufacturer's instructions or contact Demco directly for guidance on the weight capacity of your particular hitch.
Q: Can I install a Demco fifth wheel hitch on a vehicle with a lifted suspension?
A: It's generally not recommended to install a Demco fifth wheel hitch on a vehicle with a lifted suspension, as this can create clearance issues and compromise the stability of the hitch. Consult the manufacturer's instructions or contact Demco directly for guidance on installing a hitch on a lifted vehicle.
Q: How often should I inspect and maintain my Demco fifth wheel hitch?
A: It's recommended to inspect and maintain your Demco fifth wheel hitch at least annually, or as specified in the manufacturer's instructions. This may involve cleaning the hitch, lubricating moving parts, and verifying that all fasteners are securely tightened.