CURT 13525 Class 3 Trailer Hitch Instruction Manual

1. Product Overview

The CURT 13525 Class 3 Trailer Hitch is engineered for serious towing, offering a vehicle-specific fit and robust weight capacity. This custom-fit hitch is designed for select model years of the Jeep Grand Cherokee and Grand Cherokee L, providing a standard 2-inch x 2-inch receiver tube.

Figure 1: The CURT 13525 Class 3 Trailer Hitch, featuring a 2-inch receiver tube and a durable black finish.

Each CURT Class 3 hitch is constructed from high-strength steel and undergoes rigorous testing in accordance with SAE J684 standards to ensure safety and reliability. The hitch is protected with a unique dual-coat finish, combining rust-resistant liquid A-coat and a highly durable black powder coat, co-cured for exceptional resistance against rust, chipping, and UV damage.

Figure 2: Overview of the CURT trailer hitch's key features, including vehicle-specific design, dual-coat finish, standard hitch receiver, and fully tested design.

2. Setup and Installation

The CURT 13525 trailer hitch is designed for a custom, factory-fit installation on compatible Jeep Grand Cherokee and Grand Cherokee L models. Installation typically involves mounting the hitch to existing frame holes, often requiring minimal or no drilling.

2.1 General Installation Steps

1. Preparation: Ensure the vehicle's frame is clean and free of debris. Refer to the specific installation instructions provided with your hitch for any vehicle-specific preparation steps, such as temporary removal of exhaust components or bumper fascia.
2. Positioning: Carefully lift the hitch into position, aligning the mounting holes with the vehicle's frame. Assistance from another person or a jack stand is recommended due to the hitch's weight.
3. Securing: Insert the provided fasteners (bolts, nuts, washers) through the aligned holes. Hand-tighten all fasteners initially.
4. Torquing: Once all fasteners are in place and hand-tight, use a torque wrench to tighten them to the specifications outlined in your hitch's instruction manual. Do not use excessive torque or an impact wrench.
5. Reassembly: Reinstall any vehicle components that were temporarily removed or adjusted during the installation process.

Figure 3: CURT hitches undergo rigorous testing to ensure durability and safety.

2.2 Installation Video Reference

For a visual guide on trailer hitch installation, please refer to the following video. While this video may not feature the exact CURT 13525 model, it provides general principles and techniques applicable to receiver hitch installation.

3. Operating Instructions

The CURT 13525 Class 3 Trailer Hitch provides a versatile 2-inch x 2-inch receiver tube, compatible with a wide range of towing accessories and trailers. Always ensure proper connection and safety measures before towing.

3.1 Connecting a Trailer

1. Insert Ball Mount: Slide your 2-inch ball mount (sold separately) into the receiver tube.
2. Secure with Pin & Clip: Align the pin hole on the ball mount with the receiver tube and insert the hitch pin, securing it with a cotter pin or clip.
3. Attach Trailer: Lower the trailer coupler onto the hitch ball. Ensure the coupler is fully seated and locked.
4. Connect Safety Chains: Cross the trailer's safety chains beneath the coupler and attach them to the designated safety chain loops on the hitch.
5. Connect Wiring: Plug in the trailer's electrical connector to the vehicle's wiring harness (if applicable).

Figure 4: Close-up view of the standard 2-inch x 2-inch receiver tube.

3.2 Weight Distribution

This hitch is compatible with a weight distribution hitch for level towing, rated for 7,500 lbs. WD and 750 lbs. WDTW. Always follow the manufacturer's instructions for your weight distribution system.

3.3 Important Towing Considerations

• Weight Capacity: Never exceed the lowest-rated towing component (vehicle, hitch, ball mount, or trailer).
• Load Distribution: Distribute trailer cargo evenly to maintain stability.
• Brake Control: For trailers with electric brakes, a brake controller is required.
• Inspection: Before each trip, inspect all towing components for wear or damage.
• Note on Bike Racks: This hitch is not compatible with vertical hanging bikes/bike racks that require the bikes to be hung/mounted vertically.

4. Maintenance

Regular maintenance ensures the longevity and safe operation of your CURT trailer hitch.

• Regular Inspection: Periodically inspect the hitch for any signs of wear, damage, rust, or loose fasteners. Pay close attention to the receiver tube and mounting points.
• Cleaning: Clean the hitch regularly with mild soap and water to remove dirt, salt, and road grime. This helps preserve the dual-coat finish.
• Lubrication: Keep the receiver tube free of debris. Lightly lubricate the hitch pin and clip mechanism to ensure smooth operation.
• Corrosion: Despite the protective finish, inspect for any signs of corrosion, especially in areas where the finish might be compromised. Address any rust promptly to prevent further spread.

Figure 5: The dual-coat finishing process provides superior protection against environmental elements.

5. Troubleshooting

If you encounter any issues with your CURT trailer hitch, consider the following basic troubleshooting steps:

• Loose Connections: Check all bolts and nuts for proper torque. Retighten any loose fasteners according to the specified torque values.
• Unusual Noises: Investigate any rattling or clunking sounds. This could indicate loose components, worn parts, or improper trailer connection.
• Towing Instability: Ensure the trailer load is properly distributed and that the tongue weight is within recommended limits. Verify tire pressures on both the tow vehicle and trailer.
• Electrical Issues: If trailer lights are not functioning, check all wiring connections, fuses, and the vehicle's wiring harness.
• Professional Inspection: If problems persist or you are unsure about any aspect of the hitch's condition or operation, consult a qualified mechanic or CURT dealer.

6. Specifications

7. Warranty and Support

CURT Manufacturing LLC provides a Limited Lifetime Warranty for its trailer hitches, reflecting confidence in the product's quality and durability. For specific warranty details, claims, or technical support, please refer to the warranty information included with your product packaging or visit the official CURT website.

Always ensure you are using the hitch within its specified weight capacities and in accordance with all applicable federal, state, and local towing regulations.