CURT 13520 Trailer Hitch Instruction Manual
- June 13, 2024
- Curt
Table of Contents
**CURT 13520 Trailer Hitch Instruction Manual
**
Level of Difficulty
Moderate
Installation difficulty levels are based on time and effort involved and
may vary depending on the installer level of expertise, condition of the
vehicle and proper tools and equipment.
Weight Carrying Capacity
Gross trailer weight (GTW) | 2,500 lbs. |
---|---|
Tongue weight (TW) | 250 lbs. |
Parts List
Item | Qty | Description |
---|---|---|
1 | 1 | Trailer hitch |
2 | 1 | Mounting bracket, driver side |
3 | 1 | Mounting bracket, passenger side |
4 | 6 | Hex bolt, M12 x 1.25″ x 35 |
5 | 6 | Carriage bolt, 1/2″-13 x 1.25″ |
6 | 6 | Conical-toothed washer, 1/2″ |
7 | 6 | Serrated-flange nut, 1/2″-13 |
Tools Required
Ratchet | Phillips screwdriver |
---|---|
Socket, 3/4″ | Tape |
Socket, 10mm | Tape measure |
Socket, 19mm | Fishwire, 1/2″(includes 4 qty) |
Torque wrench | Shears |
Flathead screwdriver | — |
- For a tools reference guide visitcurtmfg.com/trailer-hitch-installation
WARNING
Never exceed the vehicle manufacturer’s recommended towing capacity.
NOTICE
Visit : www.curtmfg.com for a full-color copy
of this instruction manual, as well as helpful videos, guides and much more!
Before you begin installation, read all instructions thoroughly.
Proper tools will improve the quality of installation and reduce the time
required.
This installation requires:
- Part removal and trimming of the underbody panel.
Periodic inspection of the trailer hitch should be performed to ensure all
mounting hardware remains tight and structural components are secure.
To help prevent damage to the product or vehicle, refer to the specified
torque specifications when securing hardware during the installation process.
SAFETY INSTRUCTIONS
Safety glasses should be worn at all times while installing this product.
Product Registration and Warranty
CURT stands behind our products with industry-leading warranties. To get
copies of the product
warranties, register your purchase or provide feedback, visit:
warranty.curtgroup.com/surveys
ASSEMBLY
Parts List
Item| Qty| Description
1| 1| Trailer hitch
2| 1| Mounting bracket, driver side
3| 1| Mounting bracket, passenger side
4| 6| Hex bolt, M12 x 1.25″ x 35
5| 6| Carriage bolt, 1/2″-13 x 1.25″
6| 6| Conical-toothed washer, 1/2″
7| 6| Serrated-flange nut, 1/2″-13
FRONT
REAR
WELDNUT CLEANING
To remove debris from weldnuts in frame, spary lubricant or compressed air
into the hole. For heavy debris, use a wire brush. Take care not to damage
threads.
CONICAL TOOTHED WASHER ORIENTATION
FISHWIRE TECHNIQUE
Insert coiled end of fishwire tool through hitch mounting hole in vehicle
frame rail and out the access hole. Pass coiled end of fishwire through spacer
and thread bolt into coil. Kink wire to keep spacer seperate from bolt as
shown. Pull fishwire, spacer and bolt through frame and out mounting hole. Use
fishwire to guide hitch during mounting and prevent loss of bolt or spacer
inside frame rail.
Step 1
Remove the rearmost lower bumper panel by removing 10 clips and set aside
for reinstallation.
Note: Removing the large underbody panel may ease installation.
Step 2
Carefully dislodge the two electrical cables routed along the end of the
driver-side frame rail.
Step 3
Loosely install the driver-side mounting bracket (#2) to the outside of the
driverside frame rail using M12 hex bolts (#4) and conical-toothed washers
(#6).
Repeat on the passenger side of the vehicle.
Step 4
Raise the hitch (#1) into position between the side plates installed in
step 2. Secure with 1/2″ carriage bolts (#5) installed from the center of the
vehicle outward and serrated-flange nuts (#7). Use fishwires as needed to
install bolts.
Step 5
Torque all M12 hardware to 86 ft-lbs.
Torque all 1/2″ hardware to 90 ft-lbs.
Trim the underbody removed in step 1 using the trim diagram for reference and
reinstall.
**Final Installed Image
TOWING BASICS & SAFETY INFORMATION
For information on safely towing your trailer, visit : curtmfg.com /understanding-towing.
- PRODUCT SUPPORT: 877.287.8634
- 13520-INS-RA
- 08/02/2022
- ECN9893
- PAGE 4
References
- CURT: Trailer Hitches - Trailer Wiring - 5th Wheel - Gooseneck
- 8 Easy Steps - Trailer Hitch Installation How-To
- Towing Guide, How-tos, References & Glossary
- CURT: Trailer Hitches - Trailer Wiring - 5th Wheel - Gooseneck
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