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Curt 6-Point Hex Wrench for Trailer Hitch Balls with 3/4" or 1" Diameter Shanks
(43 reviews)
Price: $20.04
In Stock
CURT
Curt 6-Point Hex Wrench for Trailer Hitch Balls with 3/4" or 1" Diameter Shanks
Part Number: C20001
In Stock
$20.04
Retail:$34.48
You Save: 42%
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- Reviews (43)
- Q & A (0)
- Videos (1)
- Photos
CURT Accessories and Parts - C20001
- Drop Hitch
- Trailer Hitch Ball
- Trailer Hitch Ball Mount
- Tools
- Hex Wrench
- CURT
Sturdy, easy-to-use ball wrench makes tightening your hitch ball to your ball mount or drawbar a breeze. Two different hex heads fit shanks with 3/4" or 1" diameters.
Features:
- Wrench makes it easy to tighten down your trailer hitch ball
- Measures 15" long
- 6-Point hex pattern won't strip nut
- 1-1/8" End fits hitch balls with 3/4" shanks
- 1-1/2" End fits hitch balls with 1" shanks
20001 Curt Trailer Ball Wrench
Video of Curt 6-Point Hex Wrench for Trailer Hitch Balls with 3/4" or 1" Diameter Shanks
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Review of CURT Hitch - Hitch Ball Box End Wrench - C20001
Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at this CURT six-point hex box-end wrench for trailer hitch balls with a three-quarter inch or one inch diameter shank. Now this is a nice, sturdy, easy to use ball wrench. This will make tightening your hitch ball to your ball mount a breeze. The length on this from one end to the other is 15 1/2 inches long. This will give you adequate leverage for proper torquing of your hitch ball.
And we mentioned the six-point hex pattern, you can see on this one and on this one. This will ensure the best grip, protects against rounding of the nut, and it offers two different hex head sizes. It'll fit shanks with three-quarter inch or one inch diameters. Basically on this end, it's stamped one and one-eighth. This one will work for the hitch balls with the three-quarter inch shank, and the larger one over here that's marked one and a half inches.
This will fit the hitch balls that have one inch shanks. This is a nice forged hardened steel construction, and it is protected by a nice durable chrome plating. But that should do it for the review on this CURT six-point hex box-end wrench for trailer hitch balls with a three-quarter inch or one inch diameter shank.
Ratings & Reviews
4.9
43 reviews
by:
Charles
05/21/2025
Appears to be of good quality. Unfortunately, my memory failed me when I was too lazy to dig through my garage at locate the stinger and check the ball-shank nut when I ordered this wrench. The nut is too large at 1-7/8". No need to beat myself up. As a "turn my own wrenches" guy, I can never have too many tools. I have ordered numerous items from etrailer and have not been disappointed by the product nor the customer service.
by:
Alan
12/22/2025
nice quality , it stays in my Hummer H3 so I never have to look for it!
by:
Dennis
09/28/2021
Purchased a Curt 6-point wrench for trailer hitch balls. The low price is matched by poor finishes, which is to be expected, I guess. Even though I read some reviews before purchase that commented on the sharp plating edges, I ended up cutting my hand on the shards of metal that protruded from the metal edges. Ten or fifteen minutes of work with a file cleaned up the hazardous sharp edges, but removed the chrome so the wrench will rust more easily if not kept clean and dry. The wrench arrived with a small amount of rust. That's OK...I expect utility, not beauty from this tool. It is an inexpensive tool, and I hope to get good use from it.
by:
Darren
05/23/2014
Provided even contact on nut walls and plenty of leverage. I used my trailer hitch to support the ball mount (rather than a shop vise), with the ball facing down. Much better than using a pipe wrench.
by:
Arvind
06/01/2018
Didn't realize that I needed a wrench this big and that it did even exist until I tried to bolt on the 2" hitch ball. Nothing comes close in price and gets the job done just fine.
by:
James
04/12/2013
I can't believe how great this wrench is considering how low the price was. I regret not buying one of these years ago. No more abusing hitch balls with a pipe wrench because I don't have the right-sized wrench!
by:
Jon J.
04/29/2016
It does the job! It's a wrench! It turns the bolt! It's made in China and the label that displays the brand name of the wench is put on with the stickiest glue on the planet. You know, the kind of glue that once you take the label off the glue is still there. So you take soap and a scrubby to it, but all the glue does is move around on the metal and lump together. And then you try hot water, and that smears the glue from lumpy to all over. So you get a piece of steel wool, as surely that will remove the glue, and yes, some does come off the wrench to stick to the steel wool. Finally you give up with the glue thing and use the wrench, and you end up with a sticky hand, and then you do some other trailer type things that render your hand dirty and greasy, grab the wrench again, and viola! You now have a wrench that is coated with sticky, dirty, grease. So you grab a paper towel... and now you have a wrench with glue, grease, dirt, and paper towel stuck to it. So you get the Acetone. And that removes everything. I recommend starting with the acetone.
by:
Robert R.
06/13/2013
This wrench is just what I needed for the ball hitch. I think the 6-point is great for the torque needed. Thanks for a great price and fast shipping. Robert
by:
Eric J
05/06/2014
Well, it's a wrench and it does what a wrench should do. And it's made in Taiwan, which is a step above China made stuff. If it were made in the US, I would have given it top marks.
Support US manufacturing by offering more US made products.
Support US manufacturing by offering more US made products.
by:
Jon
02/21/2017
just received my order and was very happy everything came as I ordered. I am also very pleased it arrived faster than I thought it would and that a follow up e-mail was sent to make sure I was happy. I will definitely order from Etrailer again.
by:
Mark
03/10/2020
Makes mounting trailer balls to a hitch a breeze!
by:
Joe K.
10/16/2016
It's a wrench, what can I say? Fit my 3/4 and my 1 inch trailer ball nuts as advertised. Made in China.
by:
Andrew
06/11/2018
Great tools to have. Easy installation. Everything works as expected.
by:
Bob
12/12/2024
Fast shipping good quality and price
by:
Explorer
03/18/2014
Did what it was supposed to do. Quality appears to be excellent. Fast Shipping.
by:
Glenn
08/22/2021
Handy wrench for dealing with hitch ball of the most popular shank sizes
by:
Leland
08/28/2021
we just received these item , can not tell till we try them in September so time will tell. hopefully they will be perfect, which I am sure they will be.
Leland L.
8/29/2022
no complaints
by:
Ted B.
09/09/2013
Didn't even know these existed! Nice to keep in the vehicle so I can always change ball sizes on my hitch.
by:
Keith
01/13/2018
It's a big wrench. It did it's job and tightened a nut. I haven't tried it yet to loosen a nut, but I expect it'll do just fine
Keith
1/13/2019
Wrench had one use in life, to tighten a nut. It did that and has been retired to teh bottom drawer of my tool box, where I expect it still resides
by:
James
03/27/2019
arrived in perfect condition will make a great spirit to have on hand in case it’s needed.
James
3/28/2020
Great for putting different balls on the various hitches i have. A better fit than the 18 inch adjustable wrench I normally use
by:
Dean
08/16/2019
Great tool to have for replacing ball mount.
by:
Phil
04/22/2021
Great for its intended purposes and for fending off bears.
by:
Ron C.
10/18/2016
Have already used it and it worked great. Plenty of leverage and I like that it has 6 sides to grip the nut better.
by:
Gilbert
08/24/2022
Haven't needed to use it.
by:
Mark
12/06/2018
Nice wrench..Worked just like it was supposed to...I don't like the sticker..Impossible to remove, so i just taped over it so i would not be left with all the sticky residue.
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See what our Experts say about this CURT Accessories and Parts
- Socket for Installing 1-7/8 Inch Hitch Ball While we do not have a wrench with a 1-7/8" end, we do have the 1-7/8" 12pt Thin Walled Socket # ALL643216. This would work, although it does require a 3/4" drive socket wrench which you would need to source at a local hardware store.
view full answer... - What Size Wrench is Used to Tighten Curt 2 Inch Trailer Hitch Ball 40038Curt hitch ball # 40038 has a 1 inch diameter shank. For Curt balls with 3/4 or 1 inch diameter shanks you would use wrench # C20001. The nut on that ball should use the 1-1/2 inch end of the wrench. You could also use a large crescent wrench if you have one large enough.
view full answer... - What Size Wrench Is Needed For The Nut On The Curt Hitch Ball C40007The Curt hitch ball # C40007 has a 1" diameter shank. Curt Hitch balls with a 1" shank will use a 1-1/2" wrench for the nut. You would also want to use a 2" wrench for the flats on the base of the ball. We offer the 6-point hex wrench # C20001 which can be used for hitch balls with either a 1" diameter or 3/4" diameter shank.
view full answer... - What Size Wrench is Needed for a 2" Hitch Ball with 1 Inch Diameter ShankYou will need a 1-1/2" wrench like part # C20001 in order to install the nut on the 2" Hitch Ball part # 63845. A 1-7/8" wrench would be much too large.
view full answer... - What Size Wrench is Used to Install Nut of Curt Rockerball C82KRThe size wrench or socket for the nut of Curt Rockerballs like the # C82KR is 1-1/2 inch which we offer with the part # C20001. Curt recommends 250 ft lbs of torque.
view full answer... - How to Loosen the Nut Holding a Ball on a Ball MountYou will need to use a cheater bar on the end of the wrench to get enough leverage to loosen the nut on the ball on ball mount # C45036. Chances are the crescent wrench has a wide and flat handle so you will likely need to go to a hardware store to get a steel pipe wide enough to fit on the end of the handle. It probably doesn't have to be too long, 2 feet. I once had trouble with a lug nut on a car and the only thing I had on hand was a very long piece of chain link fence post and it...
view full answer... - Tips for Getting a Nut Loose From a Ball on a Ball MountTightening a ball to a ball mount does require a substantial amount of foot pounds of torque. The lock washer puts further tension on it. What you can do is put the ball mount in the shank side ways and use a special wrench for the large nut to get enough leverage to break the nut free. If it was cross threaded, you will not want to re-use the ball due to thread damage. Some penetrating oil might also help. Let it soak in for 15 minutes. Curt makes a wrench, # C20001, if the ball you have...
view full answer... - What Size Wrench Is Needed For the Curt Towing Starter Kit # C45147? The Ball # C40018 on the Curt Towing Starter Kit # C45147 has a 1-1/8" nut which our Wrench # C20001 will fit. This ball also requires 160ft-lbs of torque but will come torqued from the manufacturer.
view full answer... - Installation of Hitch Ball on Reese Steadi-Flex Weight Distribution System HeadThe Reese Steadi-Flex Weight Distribution System w/ Sway Control # 66557 is not able to come with the hitch ball installed and torqued. You would then need the 2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 7,500 lbs # 63845 which would need to be torqued to 250 ft/lbs as stated in the product description. It is a 1-1/2 inch nut so you can use a socket or wrench like # C20001. Most torque wrenches don't go to that spec, so you simply need to make sure the lock washer is completely...
view full answer... - Availability of 1-7/8-Inch Socket for Hitch Ball InstallationWe do offer a 1-7/8-inch socket # ALL643216 that fits a 3/4-inch drive socket wrench. Since hitch balls need to be torqued to a specific rating I suggest you use a calibrated 3/4-inch torque wrench to re-install the hitch ball. Proper torque is required for the hitch ball to meet its specs.
view full answer... - Trailer Hitch Needed For a 2023 Toyota Highlander To Pull A Utility Trailer With 17" Ball HeightYou are going to want a ball mount with a 2" drop for your utility trailer. We have a kits for a 1-7/8" # C45034 or 2" # C45534 hitch ball. We also have the Wrench # C20001 for tightening the hitch ball.
view full answer... - Wrentch for Curt Hitch Ball # A-82For 2" Curt hitch ball # A-82 you want to use Curt 6-Point Hex Wrench for Trailer Hitch Balls with 3/4" or 1" Diameter Shanks # C20001 and use the 1-1/8" end. I've added a link to a video review of the wrench for you to check out.
view full answer... - Trailer Hitch Recommendation for a 2014 Ford EscapeThe etrailer.com Ball Mount Kit part # 989900 does not include a wrench to tighten the hitch ball down. For a wrench to go with this kit you would want the part # C20001. For a trailer hitch the part # 75758 that you referenced would be the correct hitch to use. I attached an install video for you to check out as well. For trailer wiring you would want the part # 118566.
view full answer...
Do you have a question about this Accessories and Part?
Info for this part was:
Written by:
Lindsey S
Installed by:
Jeff D
Expert Research:
Adam R
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Isabelle B
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Gwendolyn Y.
5/21/2025
Happens to the best of us. You will be prepared when you need a wrench for a 3/4" or 1" ball shank!