Installation Instructions for Dodge Sprinter, Freightliner Sprinter, and Mercedes Sprinter
(Van and Cab & Chassis Models)

Part Numbers:

• 75549
• 87441
• 44576
• 75239 UH

Tools Required:

• Wrenches: 18mm, 19mm
• Drill Bits: None

Wiring Access Location:

• SUV1, SUV2

Step-by-Step Instructions:

For Sprinter Van Models:

1. Remove Tie-Down Hook:

   • Detach the tie-down hook from the passenger side frame rail.
   • Return the tie-down hook and fasteners to the vehicle owner.

2. Position the Hitch:

   • Raise the hitch into position.
   • Install the fasteners as shown:
     • Insert a hex bolt and lock washer through the round hole in the hitch bracket.
     • Insert hex bolts and toothed washers through the oblong slots in the hitch bracket, on both sides.

For Sprinter Cab & Chassis Models:

1. Remove Wheel Chock Bracket (if present):

   • Remove the wheel chock bracket from the driver side frame rail and retain it for reinstallation.
   • Discard the bolts.

2. Position the Hitch:

   • Raise the hitch and the wheel chock bracket into position.
   • Install the fasteners as shown:
     • Insert a hex bolt and lock washer through the round hole in the hitch bracket.
     • Insert hex bolts and toothed washers through the oblong slots in the hitch bracket, on both sides.

3. Tighten Fasteners:

   • Use a torque wrench to tighten all M12 x 1.75 CL8.8 fasteners to 68 lb-ft (92 N·m).

Hardware List:

• (8) Hex Bolts M12 x 1.75 x 120mm CL8.8
• (8) 1/4” x 1” x 2” Spacer Blocks
• (6) 1/2” Toothed Washers
• (8) Hex Nuts M12 x 1.75
• (2) 1/2” Lock Washers

Notes:

• Check the hitch frequently to ensure all fasteners and the ball are properly tightened.
• If the hitch is removed, plug all holes in the trunk pan or body panels to prevent water and exhaust fumes from entering.
• Replace any damaged hitch or ball immediately.
• Follow all safety precautions when working beneath the vehicle, and wear eye protection.
• Do not cut access or attachment holes with a torch.

Specifications:

• Hitch Type and Weight Ratings:
  • Weight Distributing: Max Trailer Weight 7,500 lbs (3,405 kg), Max Tongue Weight 750 lbs (341 kg).
  • Weight Carrying (Ball Mount): Max Trailer Weight 6,000 lbs (2,724 kg), Max Tongue Weight 600 lbs (272 kg).
• Complies with safety specifications and requirements for connecting devices and towing systems of the State of New York, V.E.S.C. Regulation V-5, and SAE J684.

Additional Note:

• This hitch is not compatible with vehicles that have a 30-3/8” wide frame measured outside to outside.

Installation Instructions for 7-Way T-One® T-Connector Kit

Part Numbers:

• 22115

Tools Required:

• Trim Panel Puller
• 8mm, 10mm & 15mm Sockets
• Ratchet
• Wire Strippers/Crimpers
• Test Probe or Voltmeter
• Heat Gun
• Torx T-25, T-30
• 2” Hole Saw & Drill

Hardware Included:

• Cable Ties (24 - 8.5”, 1 - 14.5”)
• Wire Tap (1)
• Yellow Butt Connectors (4)
• 25 AMP Fuse (1)
• 30 AMP Fuse (2)
• Ring Terminals (4)
• Fuse Holders (2)
• Circuit Breaker 25 AMP (1), Circuit Breaker 30 AMP (1)
• Grommet (1)
• Breaker Boot (1)
• Double-Sided Tape (1)

Step-by-Step Instructions:

1. Prepare the Vehicle:

   • Disconnect and isolate the negative battery terminal.
   • Access the battery by removing the metal plate under the driver’s side floor mats.
   • Open the rear doors and remove the taillights using a Phillips screwdriver. Push the vehicle connector through the gasketed hole into the rear cargo area pillar.
   • Remove the bumper fascia and air baffle below the driver’s side using a trim panel puller and Torx bits.

2. Connect Driver-Side T-One® Connector:

   • Route the T-One® Connector with the yellow wire up into the driver-side taillight hole.
   • Connect it to the vehicle wiring harness and lock into place. Ensure the connection is secure and undamaged.

3. Mount the ModuLite® Box:

   • Secure the ModuLite® box near the driver-side taillight using the provided double-sided tape or cable ties.

4. Route Passenger-Side T-One® Connector:

   • Route the T-One® Connector with the green wire behind the rear fascia to the passenger-side taillight. Connect it to the vehicle wiring harness and lock into place.

5. Install Body Harness:

   • Route the body harness with red, black, and blue wires from the driver’s side to the front of the vehicle, following existing wiring routes. Avoid hot pipes, heat shields, and fuel tanks.
   • Use the 30 AMP fuse holder, butt connector, and ring terminal to connect the black wire to the battery.
   • Connect the 12-gauge red wire to the battery using the 25 AMP fuse holder, butt connector, and ring terminal.

6. Install Brake Control Harness:

   • Mount the brake control harness in a suitable location on the vehicle.
   • Route the brake harness wires as follows:
     • White wire: to chassis ground point.
     • Black wire: to the vehicle’s positive post with a 30 AMP circuit breaker.
     • Blue wire: to the body harness blue wire.
     • Red wire: to the body harness 18-gauge red wire using a blue butt connector.

7. Install 7-Way Harness:

   • Determine the mounting location for the 7-way connector. Drill a 2” hole if necessary.
   • Route the harness behind the rear fascia to the mounting point and pin the 7-way connector using the wire insertion detail.

8. Secure the Harness:

   • Use the provided cable ties to secure all wiring to prevent damage or rattling. Ensure no wires are pinched or exposed to heat sources.

9. Reconnect the Battery:

   • Reconnect the negative battery cable.

10. Reassemble Components:

    • Replace all removed components, including trim panels, grommets, and taillights. Seal altered grommets with silicone.

11. Test Installation:

    • Test the system using a test light or trailer. Verify all connections and functionality.

Troubleshooting:

• If the 7-way connector does not function, ensure all connections are secure and fuses are properly installed. Test voltage using a voltmeter if needed.

Specifications:

• Max. stop/turn/backup light: 2 per side (4.2 amps)
• Max. tail lights: 7.5 amps
• Max. 7-Way 12V power: 30 amps

Safety Notes:

• Do not exceed stated product ratings or manufacturer specifications.
• Always wear safety glasses and follow safety precautions during installation.

Manufacturer Notes:

• Refer to the vehicle owner’s manual and the instruction sheet for additional details.
• Store these instructions for future reference.