Curt Group 45143 User Manual

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PAGE 1
INSTALLATION MANUAL
45143
Product Photo
Parts List
Item Qty Description
1 1 Loaded ball mount assembly
2 1 Anti-rattle clamp plate
3 1 Anti-rattle hitch pin
4 1 Clip
Product Registration
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Level of Difficulty
Easy
NOTICE
Before you begin installation, read all instructions thoroughly.
Proper tools will improve the quality of installation and reduce the time required.
Ensure the trailer ball size matches the trailer coupler.
If it does not, the trailer could become uncoupled.
To help prevent damage to the product or vehicle, refer to the specified
torque specifications when securing hardware during the installation process.
Weight Capacity
Gross trailer weight (GTW) 7,500 lbs.
Tongue weight (TW) 750 lbs.
Tools Required
Torque wrench Socket
Torque Specifications
1" bolt 250 ft-lbs.
1/2" anti-rattle pin 35 ft-lbs.
Use above torque setting unless otherwise noted
WARNING
Never exceed the vehicle manufacturer's recommended towing capacity. The ratings of
the trailer ball are intended to represent the capability of the product and in no way reflect
the ratings or capacity of the towing system it is being used with. The consumer or
operator are strongly advised to know the ratings of the various components of the
towing system and never exceed the limits of the lowest rated component being used.
Use of any pin other than what is provided by the manufacturer
could be a serious safety hazard and will void the warranty.
Ensure that the safety chains operate freely around the trailer ball
system and do not become entangled in the trailer ball system.
When the ball can be moved five degrees or more from a vertical position with minimal force,
by hand, the product has reached the end of its useful life and must be replaced. Continued
use of a worn trailer ball assembly may result in the trailer becoming separated from the
vehicle. Consult CURT customer service if you have any questions.
Periodically check the hex nut and ensure it is tightened to the correct torque specifications.
Before every use, be sure the snap ring on the pivot pin
of the trailer ball assembly is in place and properly seated.
Immediately discontinue product use if the snap ring is missing on the end of the trailer ball
pivot pin or if the trailer ball pin has backed partially out of the trailer ball assembly.

Curt Group 45143 Specifications

General

Part Number	45143
Hitch Type	Receiver
Material	Steel
Brand	Curt
Ball Hole Diameter	1 inch
Finish	Black
Hitch Class	Class III
Shank Size (in)	2 inches

Summary

Product Overview and Specifications

Level of Difficulty

Indicates the ease of installation for the product.

Weight Capacity

Details Gross Trailer Weight (GTW) and Tongue Weight (TW) limits.

Parts List

Lists all components included with the product.

Tools Required

Specifies the tools needed for installation.

Torque Specifications

Provides torque values for critical hardware during installation.

Important Safety Information

WARNING

Critical safety warnings regarding towing capacity and product integrity.

NOTICE

General installation advice and precautions for proper use.

Assembly Instructions

Step 1: Prepare Clamp Plate

Instructions for placing the anti-rattle clamp plate.

Step 2: Insert Ball Mount

Guide for inserting the ball mount into the receiver tube.

Step 3: Secure Ball Mount

Details on using the anti-rattle hitch pin and clip to secure the mount.

Step 4: Grease Ball Assembly

Instructions for greasing the trailer ball assembly before use.