Installation Instructions for Toyota Tundra

Part Numbers:

• 33049
• 75105
• 87588

Installation Time:

• Not specified.

Tools Required:

• 3/4” Socket
• 18mm Socket
• Torque Wrench

Step-by-Step Instructions:

1. Position Receiver:

   • Lift the receiver up to the frame of the vehicle.
   • Locate the large holes in the receiver brackets over the rivet heads in the frame.

2. Install Hex Bolts:

   • Place four (4) 1/2” serrated washers over four (4) 12mm hex bolts.
   • Insert the bolts up through the receiver brackets and into the weld nuts in the frame.

3. Install Carriage Bolts:

   • Place two (2) bolt plates over two (2) 1/2” carriage bolts.
   • Insert the bolts down through the frame and the receiver brackets.
   • Secure each bolt with a 1/2” serrated washer and 1/2” lock nut.

4. Tighten Fasteners:

   • Torque the 12mm bolts to 75 Lb.-Ft.
   • Torque the 1/2” nuts to 75 Lb.-Ft.

Hardware List:

• (4) 12mm Hex Bolts
• (4) 1/2” Serrated Washers
• (2) 1/2” Carriage Bolts
• (2) Bolt Plates
• (2) 1/2” Lock Nuts

Safety Notes:

• Do not lubricate threads; bolt failure may occur due to over-tightening.
• Do not drill or weld to the hitch.
• Use only Towing Products supplied or approved bolts, locknuts, and washers.

Specifications:

• Weight Carrying:
  • Max Gross Trailer Weight: 5,000 lb.
  • Max Tongue Weight: 500 lb.
• Weight Distributing:
  • Max Gross Trailer Weight: 7,500 lb.
  • Max Tongue Weight: 750 lb.
• This product complies with safety specifications and requirements for the State of New York and VESC Regulation V-5.

Warranty Information:

• Towing Products warrants its hitches and custom hitch receivers for the life of the original consumer purchaser against defects in material and workmanship.
• Labor charges and damages incurred during installation or replacement are not covered.
• Misuse, abuse, neglect, improper installation, or failure to follow instructions will void the warranty.
• Contact Towing Products for assistance:
  • USA: 800-632-3290
  • Canada: 800-565-0351

Installation Instructions for Modulite® HD Protector Vehicle Wiring

Part Number:

• 119148

Tools Required:

• Phillips Head #2 Screwdriver
• Wire Cutters
• Wire Strippers/Wire Crimpers
• Tester or Volt Meter
• Socket & Ratchet Set
• Drill with 3/32” Drill Bit
• Double-Sided Tape

Step-by-Step Instructions:

Tow Vehicle Inputs - Determination:

1. Disconnect and isolate the vehicle's negative battery terminal.
   • Warning: Read and follow all warnings and instructions on the tow vehicle's battery.
2. Splice the tow harness input wires to the vehicle as determined.
   • Caution: Use appropriate gauge wire splices. Blue taps are for 16-18 gauge wires only.

Harness Installation:

1. Determine the mounting location of the module and secure it using the double-sided tape provided.
   • Warning: Mount the module with the epoxy side pointed towards the ground to prevent water buildup.
2. Locate a suitable grounding point near the module, such as an existing ground stud, or drill a 3/32” hole to secure the white wire using the provided eyelet and screw.
   • Caution: Verify what is behind any surface before drilling to avoid damage or personal injury.
3. Route the power wire to the vehicle’s positive battery terminal. Use the provided fuse holder, butt connector, and ring terminal to connect to the battery.
   • Do not insert the 15 amp fuse yet.
   • Caution: Ensure the module is connected to a constant power source and avoid routing the wire near hot pipes, heat shields, fuel tanks, or pinch points.

Completion:

1. Secure the harness with cable ties provided to prevent damage or rattling.
2. Reconnect the vehicle's negative battery cable.
3. Insert the 15 amp fuse into the fuse holder and close the cap.
4. Test the installation using a test light or trailer. Check each function independently and in combination.

Hardware List:

• 8 × Cable Ties, 8.5”
• 1 × 15 AMP Fuse
• 2 × Ring Terminals
• 1 × Fuse Holder
• 2 × Yellow Butt Connectors
• 1 × Self-Tapping Screw
• 4 × Blue Taps
• 1 × Spade Terminal

Wiring Outputs:

• White Wire: Ground
• Brown Wire: Tail
• Yellow Wire: Left Turn/Brake
• Green Wire: Right Turn/Brake
• Red Wire: Stop (for 3-wire systems only)

Safety Notes:

• Always read and follow all warnings and instructions included with the product and the vehicle's manual.
• Do not exceed the manufacturer’s towing capacity or the product’s amperage ratings.
• Wear safety glasses and use all necessary safety precautions during installation.

Troubleshooting Guide:

• 4-Flat Not Functioning: Ensure input wires are correctly installed and repeat testing after removing the 15 amp fuse for 10 seconds.
• No Power to 4-Flat: Check the chassis ground and ensure the module is properly connected to a constant power source.

Specifications:

• Installation Time: Approximately 45 minutes
• Compatibility: Does not work with multiplex vehicles (BM, BT, or BTT). Use part numbers 119190 or 119250 for these systems.

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.

For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.

For warranty information, please download the full installation PDF.