What is the height on the ball end?

The ball is a regular 2 inch ball. Height depends on the receiver hitch

ball marks on top says 2 am i missing something

It’s a 2 5/16” ball not a 2”

Whats the socket size for nut?

The nut on a hitch ball with a 1-1/4 inch shank takes a wrench with a 1-7/8 inch socket. A hitch ball with a 1 inch shank will take a wrench with a 1-1/2 inch socket. So the best tool for this ball is a 1 1/2” box end wrench.

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CURT 40039 Chrome Trailer Hitch Ball, 12,000 lbs, 2-5/16-Inch Diameter, 1 x 2-1/4-Inch Shank

Product ID: 184982825

Details

Brand
CURT
Item weight
1.37 kg
Material
Alloy Steel
OEM part number
40039
Vehicle service type
RV

💪12,000 lbs max tow capacity

⚙️2-5/16-inch diameter ball fit

🛡️Chrome plating resists rust

Description

🚛 Tow Like a Pro — Strength You Can Trust, Style You’ll Flaunt

BUILT TO ENDURE - Hot-forged, heat-treated steel core wrapped in corrosion-resistant chrome plating.
ROCK SOLID SECURITY - Includes zinc-plated hex nut and helical lock washer for a torque-tight hold.
UNMATCHED TOWING POWER - Handles up to 12,000 lbs for your heaviest hauls with confidence.
PRECISION FIT GUARANTEED - 2-5/16-inch diameter ball ensures seamless compatibility with standard couplers.
SAFETY TESTED EXCELLENCE - Meets rigorous U.S. VESC standards for peace of mind on every trip.

The CURT 40039 Chrome Trailer Hitch Ball is engineered for serious towing, boasting a 12,000 lbs capacity and a precise 2-5/16-inch diameter to fit most couplers. Crafted from hot-forged, heat-treated steel and finished with durable chrome plating, it resists rust and wear. Equipped with secure fastening hardware and tested to U.S. VESC safety standards, this hitch ball delivers reliable, long-lasting performance for professional-grade towing needs.

Specifications

ASIN	B001EP28FA
Brand Name	CURT
Compatible with Vehicle Type	RV
Customer Reviews	4.7 4.7 out of 5 stars (1,119)
Global Trade Identification Number	00612314000371
Included Components	Auto part, Automotive Accessories, Replacement and Performance parts
Item Type Name	Trailer Hitch Ball, 12,000 lbs.
Item Weight	1.37 kg
Manufacturer	Curt Manufacturing
Manufacturer Part Number	40039
Material Type	Alloy Steel
Maximum Towing Capacity	12 Pounds
Model Number	40039
Number of Items	1
OEM Equivalent Part Number	40039
UPC	612314000371

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TrustScore 4.5 | 7,300+ reviews

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Great experience from order to delivery. Highly recommended!

1 week ago

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Excellent communication throughout the order process. Product is perfect.

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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