Installation Instructions for Hi-Rise 18K Fifth Wheel Conversion Hitch

Part Numbers:

• 9480

Tools Required:

• Wrenches: 7/16”, 9/16”, 15/16”
• Torque Wrench (up to 200 ft-lbs)
• Drill (as applicable)
• Phillips Screwdriver
• Hammer

Safety Notes:

• Warning:
  • Maximum hitch capacity:
    • Gross Trailer Weight (GTW): 18,000 lbs
    • King Pin Weight: 4,500 lbs
  • Use only an SAE 2-inch kingpin with this hitch.
  • Never place any part of your body under the trailer or between the truck and trailer.
  • Ensure trailer landing gear rests on firm ground and trailer wheels are blocked before hitching or unhitching.
• Caution:
  • Verify a minimum of 6 inches clearance between the truck bed rails and trailer underside.
  • Do not use this hitch on short-bed trucks under 6 feet in length.

Step-by-Step Instructions:

Step 1: Guidelines for Matching Tow Vehicle and Trailer

• Ensure your vehicle has a rated towing capacity equal to or greater than the gross trailer weight (GTW).
• Install this hitch on long-bed trucks (8 ft) for best performance and turning clearance.
• For short-bed trucks (6-8 ft), use a minimum 13” extended pin box to gain additional turning clearance.

Step 2: Plastic Bed Liner Adjustment (if applicable)

• If a plastic bed liner is installed, cut or remove the liner where the hitch components will rest.
• Cut areas must align with mounting hardware and bed corrugations (see Fig. 8).

Step 3: Assemble the Hitch Components

• Attach the center section to the base assembly using 5/8” bolts and lock washers.
• Torque the 5/8” bolts to 170 ft-lbs.

Step 4: Install Plastic Strips

• Attach the plastic strips to the bottom of the hitch legs using 5/16” x 1.5” screws, flat washers, and nylon lock nuts.
• Align the strips to sit between the truck bed corrugations (see Fig. 11B).

Step 5: Insert the Post Assembly

• Place the post assembly into the gooseneck hitch and secure it with the 5/8” knurl bolt, conical washers, and nylon lock nuts.
• Loosely tighten the hardware for alignment.

Step 6: Secure the Hitch

• Slide the post assembly into the hitch and align it.
• Close the handle/locking pin mechanism on the gooseneck hitch.
• Torque the 5/8” nuts to 120 ft-lbs.

Step 7: Install the Skid Plate Assembly

• Lubricate the skid plate and center section with lithium grease.
• Place the skid plate assembly onto the center section, keeping hands clear of pinch points.
• Insert the pull pins and secure them with retaining clips (see Fig. 17).

Step 8: Attach the Handle Assembly

• Attach the handle assembly to the skid plate using 3/8” carriage bolts, lock washers, and hex nuts.
• Slide the handle grip over the handle tube.

Hardware List:

• (1) Skid Plate Assembly
• (1) Center Section
• (1) Base Assembly
• (1) Handle Tube
• (1) Handle Grip
• (4) Plastic Strips
• (4) 5/8” Bolts and Lock Washers
• (4) 5/16” Screws, Flat Washers, and Nylon Lock Nuts
• (2) Pull Pins
• (2) Retaining Clips
• (2) Torsion Springs

Maintenance:

• Lubricate the skid plate and jaws regularly with chassis grease.
• Inspect the hitch and all fasteners before each trip.
• Retorque the 5/8” bolts to 170 ft-lbs after initial use and every 1,000 miles.
• Grease the jaw fitting through the grease zerk every 6 months.

Towing Information:

• Use a lube plate no larger than 3/16” thick (Cequent part #83001).
• Ensure the trailer king pin height allows the trailer to remain level during towing.
• Maintain at least 6 inches clearance between the truck bed rails and the underside of the trailer.

Warranty:

• 5-Year Limited Warranty for defects in material and workmanship under normal use.
• Warranty excludes damage from misuse, neglect, improper installation, or unauthorized modifications.

For support, contact Cequent Performance Products at 1-888-521-0510.

Installation Instructions for Hi-Rise 18K Fifth Wheel Conversion Hitch

Part Numbers:

• 9480

Tools Required:

• Wrenches: 7/16”, 9/16”, 15/16”
• Torque Wrench (up to 200 ft-lbs)
• Drill (as applicable)
• Phillips Screwdriver
• Hammer

Safety Notes:

• Warning:
  • Maximum hitch capacity:
    • Gross Trailer Weight (GTW): 18,000 lbs
    • King Pin Weight: 4,500 lbs
  • Use only an SAE 2-inch kingpin with this hitch.
  • Never place any part of your body under the trailer or between the truck and trailer.
  • Ensure trailer landing gear rests on firm ground and trailer wheels are blocked before hitching or unhitching.
• Caution:
  • Verify a minimum of 6 inches clearance between the truck bed rails and trailer underside.
  • Do not use this hitch on short-bed trucks under 6 feet in length.

Step-by-Step Instructions:

Step 1: Guidelines for Matching Tow Vehicle and Trailer

• Ensure your vehicle has a rated towing capacity equal to or greater than the gross trailer weight (GTW).
• Install this hitch on long-bed trucks (8 ft) for best performance and turning clearance.
• For short-bed trucks (6-8 ft), use a minimum 13” extended pin box to gain additional turning clearance.

Step 2: Plastic Bed Liner Adjustment (if applicable)

• If a plastic bed liner is installed, cut or remove the liner where the hitch components will rest.
• Cut areas must align with mounting hardware and bed corrugations (see Fig. 8).

Step 3: Assemble the Hitch Components

• Attach the center section to the base assembly using 5/8” bolts and lock washers.
• Torque the 5/8” bolts to 170 ft-lbs.

Step 4: Install Plastic Strips

• Attach the plastic strips to the bottom of the hitch legs using 5/16” x 1.5” screws, flat washers, and nylon lock nuts.
• Align the strips to sit between the truck bed corrugations (see Fig. 11B).

Step 5: Insert the Post Assembly

• Place the post assembly into the gooseneck hitch and secure it with the 5/8” knurl bolt, conical washers, and nylon lock nuts.
• Loosely tighten the hardware for alignment.

Step 6: Secure the Hitch

• Slide the post assembly into the hitch and align it.
• Close the handle/locking pin mechanism on the gooseneck hitch.
• Torque the 5/8” nuts to 120 ft-lbs.

Step 7: Install the Skid Plate Assembly

• Lubricate the skid plate and center section with lithium grease.
• Place the skid plate assembly onto the center section, keeping hands clear of pinch points.
• Insert the pull pins and secure them with retaining clips (see Fig. 17).

Step 8: Attach the Handle Assembly

• Attach the handle assembly to the skid plate using 3/8” carriage bolts, lock washers, and hex nuts.
• Slide the handle grip over the handle tube.

Hardware List:

• (1) Skid Plate Assembly
• (1) Center Section
• (1) Base Assembly
• (1) Handle Tube
• (1) Handle Grip
• (4) Plastic Strips
• (4) 5/8” Bolts and Lock Washers
• (4) 5/16” Screws, Flat Washers, and Nylon Lock Nuts
• (2) Pull Pins
• (2) Retaining Clips
• (2) Torsion Springs

Maintenance:

• Lubricate the skid plate and jaws regularly with chassis grease.
• Inspect the hitch and all fasteners before each trip.
• Retorque the 5/8” bolts to 170 ft-lbs after initial use and every 1,000 miles.
• Grease the jaw fitting through the grease zerk every 6 months.

Towing Information:

• Use a lube plate no larger than 3/16” thick (Cequent part #83001).
• Ensure the trailer king pin height allows the trailer to remain level during towing.
• Maintain at least 6 inches clearance between the truck bed rails and the underside of the trailer.

Warranty:

• 5-Year Limited Warranty for defects in material and workmanship under normal use.
• Warranty excludes damage from misuse, neglect, improper installation, or unauthorized modifications.

For support, contact our technical support team at 877-869-6690 or visit www.trailerjacks.com.

Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.