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  1. Trailer Hitch Ball
  2. CURT
  3. Trailer Hitch Ball
  4. 1-7/8 Inch Diameter Ball
  5. 1 Inch Diameter Shank
  6. Standard Ball
1-7/8" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Stainless Steel - 3,500 lbs

1-7/8" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Stainless Steel - 3,500 lbs

Item # C40051
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Trailer Hitch Ball
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Durable stainless steel ball has 1" diameter x 2-1/8" long shank. Built-in wrench flats ease installation. Fine threads provide strong grip. Stainless steel delivers superior corrosion resistance. Lock washer and nut included. Lowest Prices for the best trailer hitch ball from CURT. 1-7/8" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Stainless Steel - 3,500 lbs part number C40051 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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CURT Trailer Hitch Ball - C40051

  • Trailer Hitch Ball
  • 1-7/8 Inch Diameter Ball
  • 1 Inch Diameter Shank
  • Standard Ball
  • 3500 lbs GTW
  • Class III
  • Stainless Steel
  • 2-1/8 Inch Shank Length
  • CURT

Durable stainless steel ball has 1" diameter x 2-1/8" long shank. Built-in wrench flats ease installation. Fine threads provide strong grip. Stainless steel delivers superior corrosion resistance. Lock washer and nut included.


Features:

  • Hitch ball provides a connection point for your trailer's coupler
  • Fine threads provide exceptionally tight, strong grip
  • Stainless steel construction is strong, durable, and rustproof
  • Corrosion-resistant zinc plating on nut and washer
  • Lock washer and nut included


Specs:

  • Ball diameter: 1-7/8"
  • Shank dimensions: 1" diameter x 2-1/8" long
  • Weight capacity: 3,500 lbs
  • Fits ball mount platforms 3/8" to 5/8" thick
  • 1-Year limited warranty


40051 Curt 1-7/8" Hitch Ball with Medium Shank - Stainless Steel - 3,500 lbs

Replaces A-51





Video of 1-7/8" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Stainless Steel - 3,500 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Curt Hitch Ball - Trailer Hitch Ball - C40051 Review

Today we're going to be taking a look at Part Number C40051. This is the CURT Hitch Ball. The Hitch Ball's going to have a diameter of 1 and 7/8th of an inch. We take a measurement of the shank diameter. That's going to give us a measurement of 1 inch and then the shank length is going to measure 2 and 1/8th of an inch. It's made of a stainless steel construction. It's going to offer a capacity of 3500 pounds.

Stainless steel is very strong and durable as well as rust and corrosion resistant. It does come with your lock washer and the nut. Then here at the base of the Hitch Ball we're going to have wrench flats. This is going to help when installing and allows you to get your wrench on there. Allows you to get a good grip, that way the ball doesn't spin when you tighten it down. It's going to allow you to easily get it torqued to the specifications listed by the manufacturer. The way this works is you'd want to place the shank through the Hitch Ball hole, on the draw bar of your ball mount.

Then on the underside of the ball mount platform you'd place on your lock washer. Then you would simply thread on the nut. Then you can get everything tightened down and torqued to specifications. That's going to do it for today's look at Part Number C40051.


Customer Reviews

1-7/8" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Stainless Steel - 3,500 lbs - C40051

Average Customer Rating:  4.9 out of 5 stars   (2772 Customer Reviews)

Durable stainless steel ball has 1" diameter x 2-1/8" long shank. Built-in wrench flats ease installation. Fine threads provide strong grip. Stainless steel delivers superior corrosion resistance. Lock washer and nut included.

- C40051
by:

Excellent hitch ball for the price. Great in every way with the one exception that I really wanted the hardware to be stainless steel also. I’ve bought this brand for a different application some years ago and at that time everything was stainless steel. Would have gladly paid more for the 100% stainless steel hardware. Would be especially helpful in the states where salt is used on the roads during winter.



- C40051
by:

The Curt stainless steel hitch ball is holding up extremely well, especially considering that it's being used in a salt-air / salt water environment. I would definitely recommend it and would obviously purchase it again if the need arose. Thanks for a great product at a very reasonable price!


Comments
After a year of use in our salt air salt water environment in South Jersey, the hitch ball still looks like new. Nothing like good quality stainless steel. Keep up the good work, Curt!
Karl D - 01/23/2018



- C40051
by:

This is the second time I have ordered from eTrailer. This time I sent an email inquiry about the correct products for my 2012 Rav4. Adam R. responded with all the detailed information with references to videos and guides for the installation. I then ordered it online ("Nicole R" handled the order) and it arrived a couple of days later. The installation was easy and the instructions were accurate. The wiring harness fit perfectly. The only difference is I ran the hot lead inside the vehicle and thru a grommet in the firewall. I also used silicon around the wire running thru the grommet to insure it was water tight.



- C40051
by:

Exceptional service from eTrailer.com from online representative to product delivery. This excellent ball completed my trailer hitch setup on my 2011 Subaru Outback which includes a Hidden Hitch with 2" receiver, aluminum ball mount, and this stainless steel ball -- all purchased from eTrailer.com. My Subaru and kayak trailer are happy. Very satisfied!



- C40051
by:

Hitch came quickly, was in very good condition, and fit perfectly. The tapped holes in the undercarriage were a bit rusty, so I used WD-40, a narrow bottle brush, and took my time putting the bolts in, backing them off, cleaning again & oiling, until deep enough to secure the hitch. Bolts are a bit difficult to get started, so have patience. The dimensions for the cut-out were right on. I cut 3 sides, used a small c-clamp to keep the flap open while I bolted the hitch. Finally, I put the flap back and sealed it as well as possible with silicone. Saved about $300 vs dealership.



- C40051
by:

easy to install,works great! i use it to tow boat and for a four rack bike carrier. staff was very helpfull in selecting right carrier.



- C40051
by:

A 1 7/8" stainless ball is hard to find. Etrailer is my source for high quality hitch and trailer parts and accessories. MC



- C40051
by:

Outa the box pure quality... And GR8 service. This is my 5th order from etrailor and will order again... They keep u informed of everything.. I will send picks of my project when it's compleat Thx E-Trailor



- C40051
by:

Use it all the time. Quick delivery great website. No issues.



- C40051
by:

I like the ball, but the nut and washer were not stainless. I replaced them, but would have been glad to pay a bit more for a stainless ball including a stainless nut and washer.



- C40051
by:

The ball was stainless steel, but the lock washer and nut were zinc-plated steel. I thought everything would be stainless steel.



- C40051
by:

Solid and strong. Have some BIG wrenches on hand to attach it though. Nicely finished, well made.



- C40051
by:

Etrailer has the best customer service and fastest shipping. They have earned my business from this day until the end of days.



- C40051
by:

I like always-great service, great product reviews and info and quick delivery! Thanks etrailer.com



- C40051
by:

A great combination....etrailer and curt



- C40051
by:

Nice addition to my stainless hitch



- C40051
by:

Top shelf all the way! Sturdy construction that instills confidence and was a breeze to install. Was also pleasantly surprised to see the very high quality chrome finish. Very satisfied!



- C40051
by:

Perfect, ball arrived promptly. Couldn't find stainless locally. Fits as described.



- C40051
by:

Nice finish, high quality. I put it one and took it on a five hour trip. Worked fine. Very satisfied.



- C40051
by:

Met my expectations. Arrived in good working order in a timely fashion


Comments
As expected. No issues, opportunities or regrets!
KevanRO - 08/18/2015



- C40051
by:

Quick service and good price. Couldn't find stainless locally



- C40051
by:

Thank you.I am completely satisfied with the quality and speed of delivery.



- C40051
by:

Good quality. Easy to set up & use.



- C40051
by:

As expected, all was well. Sorry to be brief, but to date my experiences have been Great!



- C40051
by:

No issues at all with this product. The nut has stayed nice and tight.


25
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Show More Reviews

Ask the Experts about this CURT Trailer Hitch Ball



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    The polyurethane interior that cushions the Convert-A-Ball Ball Mount # AMSC2 will still be beneficial for you even though your trailer is lightweight and this ball mount has a 10,000 lb towing capacity and 2,000 lb tongue weight capacity. Even with a light tear trailer there is still going to be movement that occurs when you are towing; your trailer will bounce and inertia is going to cause some shock and strain on your vehicle when you stop, start and slow down. The Convert-A-Ball Ball...
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Info for this part was:

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