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  1. Trailer Hitch Ball Mount
  2. CURT
  3. Fits 1-1/4 Inch Hitch
  4. Fixed Ball Mount
  5. Drop - 3 Inch
  6. Rise - 2 Inch
Curt Class II Drawbar - 2-5/8" Rise, 3-1/4" Drop - 7-1/4" Long - 3,500 lbs

Curt Class II Drawbar - 2-5/8" Rise, 3-1/4" Drop - 7-1/4" Long - 3,500 lbs

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Trailer Hitch Ball Mount
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Corrosion-resistant ball mount is 7-1/4" long and fits 1-1/4" x 1-1/4" trailer hitch receivers. Lowest Prices for the best trailer hitch ball mount from CURT. Curt Class II Drawbar - 2-5/8" Rise, 3-1/4" Drop - 7-1/4" Long - 3,500 lbs part number C45521 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (1737)
  • Q & A (0)
  • Photos
  • Why etrailer?

CURT Trailer Hitch Ball Mount

  • Fits 1-1/4 Inch Hitch
  • Fixed Ball Mount
  • Drop - 3 Inch
  • Rise - 2 Inch
  • No Ball
  • Class II
  • 3500 lbs GTW
  • CURT
  • Steel Shank - Gloss Black
  • 3/4 Inch Ball Hole Diameter

Corrosion-resistant ball mount is 7-1/4" long and fits 1-1/4" x 1-1/4" trailer hitch receivers.


Features:

  • Sturdy, steel construction
  • Corrosion-resistant, black gloss powder coat finish
  • High-quality manufacturing process
    • CNC machined for strong, consistent cuts and welds
    • 7-Stage washing method delivers smooth, clean surface
  • Both drop and rise positions available to ensure level towing
  • Hitch pin and clip or hitch lock sold separately
  • Assembled in USA


Specs:

  • Application: 1-1/4" x 1-1/4" trailer hitch receivers
    • Compatible with Curt Class I and Class II hitches
  • Gross towing weight: 3,500 lbs
  • Tongue weight: 350 lbs
  • Ball hole diameter: 3/4"
  • Length: 7-1/4" from center of hitch pin hole to center of ball hole
  • Rise: 2-5/8" from top of inside of hitch opening
  • Drop: 3-1/4" from top of inside of hitch opening


How to Measure Drop on Standard Ball Mount

D-21 45521 Curt Ball Mount - 1-1/4" - Class II

Item # C45521






Customer Reviews

Curt Class II Drawbar - 2-5/8" Rise, 3-1/4" Drop - 7-1/4" Long - 3,500 lbs - C45521

Average Customer Rating:  4.8 out of 5 stars   (1737 Customer Reviews)

Corrosion-resistant ball mount is 7-1/4" long and fits 1-1/4" x 1-1/4" trailer hitch receivers.

- C45521
by:

I installed this on my 2015 Honda Accord for the purpose of pulling my small aluminum fishing boat and trailer. Works great!



- C45521
by:

Wonderful product. I had the hitch installed in 10 minutes. The wiring was a little more tricky because it required running a power wire all the way to the battery. I towed my trailer from Florida to Tennessee and back. Etrailer is still wonderful to deal with as they always have been in the past. My hitch came in a couple of days. I wouldn't think of ordering from any one else.



- C45521
by:

Good part, but won't fit with Focus ST and big exhaust tips!



- C45521
by:

I was surprised how fast i got my order . Catherine helped me make sure i had the right part , it fit perfict and was easy to install just like she said . I will forsure tell my friends about etrailer and service / & quality of product . Thank Rick PS You guys made my day !



- C45521
by:

Just a note you have to get a hitch pin separate. It did not come with the hitch or drawbar.



- C45521
by:

etrailer is smart. They ask for a review a year later and not 10 minutes after you buy the product. That gives you a chance to install it and use it. This receiver has done as I expected. It was an easy install and works well. The only downside to date was me. I left the hitch attached to the car/receiver and a guy walked around my car, kind of close to it and tripped over the ball mount/draw bar. Ouch!! Love etrailer and my hitch assembly.



- C45521
by:

what a great product. the paint is fant astic.



- C45521
by:

Easy yo install looks great strong build



- C45521
by:

i placed an order through etrailer and received the first shipment on time as expected, though after trying to install the receiver I realized that it was for the 4 door version of my car instead of the coupe. I called them instantly and within 5 minutes of talking to their customer service i had a new receiver on the way to my door step. The customer service here is amazing and they do their best to take care of their customers. The new part was received and fit just as intended. it is high quality and looks amazing!!!! I would recommend them for any and all trailer needs.



- C45521
by:

I ordered a receiver for a 2014 Subaru Impreza, and a drawbar and hitch cover. The package arrived a bit beat up, but nothing was missing or damaged. I intend to use the receiver for a bicycle mount and the drawbar (with an eyebolt) as a rear tie-down for kayaks and probably won't really tow anything. The online video on how to thread the carriage bolts and anti-spin washers was excellent as were the printed instructions. The fish wire (two different ones) was included and was 'threaded' or coiled to hold the threads of each bolt quite firmly. The stiffness of the wire was perfect. I used a 'step drill' to enlarge the two front holes in the frame (these new frames aren't made with a real heavy gauge metal, btw) The step drill made a near-perfect round hole vs a Dremel type device that others have used, but either would be fine. Wear goggles to protect your eyes from flying metal shards, please, but don't be intimidated by the project! You will most likely need a helper; my wife threaded the nuts on the bolts while I held up the roughly 30 pound hitch. I also gooped the top of the hitch with black silicone caulk to waterproof the connection. I had no need for the spacers and the receiver was about a half inch from the bottom of the bumper and flush -to -slightly- in from the back of the car. Etrailer does offer tracking now, so earlier criticisms--if valid then--have been acted upon. Delivery to Cleveland area from Mo. was two to three days. I just wish they offered a device for the front area of the vehicle for tie-down lines for the kayaks (hint, hint, but I have a plan for that). Secure and satisfied.


Comments
We do have some tie downs for the front. Check out part # TH529
Hood Loops for Thule Bow/Stern Tie-Downs - Qty 2
$19.95
or part # TH530
Quick Loops for Thule Bow/Stern Tie-Downs - Qty 2
$29.95
from Thule. One set is bolt-on, the other set, you just close the hood on.
-- Etrailer Expert Patrick B - 04/24/2014


- C45521
by:

Fit my car and easy to install and good instructions included well made would buy again.



- C45521
by:

etrailer does a great job of customer education.I would recommend them to anyone.



- C45521
by:

Strong and durable. Great company and excellent customer service



- C45521
by:

Couldn't tow with out this, though I am using it the opposite way of the photo. I would love to get one that has double or even triple the "raise" I get from this one, I still have to jack up the car with a hydraulic floor jack I carry with me, otherwise the trailer could not be put on the car.


Comments
Thank you for your review. The ball mount that fits a one and a quarter inch hitch with the most rise available is part BR39FR with a five and a half inch rise. The Brophy ball mount is the same length as your current ball mount at seven and a quarter inches long. If you are looking for a ball mount that is less expensive, I recommend part C45014 which has a five inch rise and is 9 and five eighths inches long.
-- Etrailer Expert Heather A - 12/09/2020


- C45521
by:

I spent around $175 for a what I thought to be a complete hitch installation and apparently the lousy $2.00 receiver pin was too much cost for etrailer to include. So now I get the pleasure to travel 25 miles to buy that pin locally. Amazon looks better every day.


Comments
Our description states that the hitch pin and clip or locking hitch pin is sold separately. This is to allow our customers to choose the approiate lock that they may need, or mayalready have for their accessories. If you would like the standard hitch pin that would be used for this item is a F-4. Or a locking version as part C23517.
-- Etrailer Expert Rachael H - 05/14/2019


- C45521
by:

Worked perfectly with my standard Ford Explorer hitch 2003. Service at etrailer was great, and hitch arrived in timely manner.


Comments
Perfect
Chuck - 01/18/2021


- C45521
by:

I purchased both the trailer hitch for my 2007 Honda Element and the wiring harness. The products came shipped to me on time and packaged very well. Installation of the hitch was extremely easy. Only thing I would recommend is to use a drill bit file instead of a drill to enlarge the hole to mount the hitch because it doesn't really need to be enlarged that much more. The wiring harness was also extremely easy to install. I suggest using the videos on YouTube because those helped to make things a little clearer. I am extremely satisfied with the products and value that I received from this company. I would recommend it highly.



- C45521
by:

Fits perfectly into my new hitch with the perfect length and rise for my 2011 Fiesta. Build quality seems good with thick metal and good welds.



- C45521
by:

Just as advertised, with lightning-fast delivery!



- C45521
by:

I have never regretted ordering through etrailer. As always, this order arrived precisely on-time. The wiring for trailer lights proceeded exactly as expected. The online video describing the installation was very helpful with no surprises encountered while following the instruction. Don't forget to order a hitch pin. Surprisingly, it wasn't included with the drawbar.



- C45521
by:

The hitch receiver and ball mount arrived together and much faster than I would have expected (2 days). When there was a question about installation (I did it myself) customer service answered my question quickly and it all came together fast. I could not have been happier with the whole experience. The whole unit has been working just fine, as expected. And the price is hard to beat.



- C45521
by:

I had to devise shims to prevent an annoying rattle even with my trailer attached .


Comments
Hi Jerry, Thanks for your feedback! I would recommend using the Pro Series Anti-Rattle Device, part # 63090
Pro Series Anti-Rattle Device for 1-1/4" x 1-1/4" Trailer Hitch Receivers
$38.43
, to help reduce the rattling in the hitch receiver.
-- Etrailer Expert Tyler M - 06/01/2021


- C45521
by:

Good stuff.



- C45521
by:

This website helped guide me based in my make and model. It had only the info i needed and made my decision informed and easy! I also like to order directly from etrailer and receive free shipping!



- C45521
by:

Product is well made and works great for my Small Trailer towing.


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Show More Reviews

Ask the Experts about this CURT Trailer Hitch Ball Mount



  • Will Curt Ball Mount C45521 Fit a 2014 Subaru Outback with Class I Trailer Hitch
    Ball mount # C45521 is compatible with Class I and II trailer hitches with 1-1/4 inch receivers. So it will fit the hitch. Usually though on Class I and II trailer hitches you have to use the ball mount indicated by the hitch manufacturer or it could void the hitch warranty. If the hitch is an OEM hitch then you will need to check with the dealer. The issue is that on Class I and II trailer hitches they test and rate the hitch using a specific ball mount. The use of a different ball mount...
    view full answer...
  • Availability of 1-1/4 Inch Ball Mount for 50mm Hitch Ball with 1 Inch Diameter Shank
    I do have a solution for you, however all of our available ball mounts for 1-1/4 inch receivers feature a ball hole diameter of 3/4 inches. I recommend simply going with a new 50mm hitch ball like the Draw-Tite # 63912, which features a 3/4 inch diameter shank. You can then pair the ball with any 1-1/4 inch ball mount we have available, such as the Curt Class II Drawbar # C45521. This ball mount has a towing capacity of 3,500 pounds and a rise of 2-5/8 inches or a drop of 3-1/4 inches....
    view full answer...
  • Hitch and Ball Mount Recommendation for a 2015 Honda Accord
    I spoke to my contact at Curt and he informed me that the Curt Hitch part # C11681 that you referenced has been confirmed to fit all models of the 2015 Honda Accord so it would work great on your 2015 Honda Accord Sedan Touring. The recommended ball mount with this kit is the part # C45521 which has a 3/4 inch ball hole diameter. Whether or not this would be an ideal solution for carrying an American flag will depend a lot on the size of the flag and pole you plan to use.
    view full answer...
  • Class I and II Trailer Hitches and Accessories are 1-1/4 Inch
    Class II trailer hitches and accessories all have 1-1/4 inch receivers/shanks. Class III accessories and hitches are 2 inch. If you have a Class I or Class II trailer hitch then you are supposed to use the ball mount recommended by the trailer hitch manufacturer for warranty reasons. If you have a 2004 Scion xB then all of the hitches for it are Class I trailer hitches and you should be using ball mount # C45521. I have included some links on hitch classes and ball mounts for you.
    view full answer...
  • Distance from the Hitch Pin Hole to the Back of the Shank on the Curt Class II Drawbar
    I went out to our warehouse to measure the distance from the center of the hitch pin hole to the back of the shank on the Curt Class II Drawbar, # C45521, and it is 1-1/2 inches. I have attached a picture to illustrate my measurement.
    view full answer...
    Image 1 for
  • Will Curt Class I Hitch # C11367 Fit 2014 BMW 328d Sedan
    The Curt Class I Hitch # C11367 that you referenced does indeed fit the 2014 BMW 328d sedan as long as the vehicle has a single muffler. Installation will require temporary removal of the bumper and heat shield. This light-duty hitch will bolt on using included hardware and the only specialized tool needed is a torque wrench. If you intend to use a bike rack with it, please note that only 2 bikes can be carried on a Class I hitch. Please refer to the linked article on hitch classes. You...
    view full answer...
  • What Ball Mount to Use with Curt Hitch C11402
    With Class I hitches like the # C11402 you have to use the recommended ball mount from Curt which is the part # C45521. Using a different ball mount would potentially damage the hitch since the length would be different and the leverage might cause damage.
    view full answer...
  • Recommended Ball Mount Recommendation for Use with Curt Hitch on 2018 Honda Civic
    The problem is that Class I hitches like what you have require you to only use the recommended ball mount for that hitch. This is due to the lower capacity of the hitch not being rated for added leverage of a higher or lower ball mount. With the Curt hitch part # C11604 that you referenced you have to use the # C45521 which has a 2-5/8 inch rise.
    view full answer...
  • Is Fishwire Tool Included With Curt Hitch For 2001 Honda Civic
    The Curt Trailer Hitch, part # C11204 has the fishwire tool needed for installation of the hitch. This hitch has a 1-1/4 X 1-1/4 inch receiver opening, and is a Class l hitch, and is a good fit for your 2001 Honda Civic 2 or 4 door if it is not a hatchback. The hitch will not fit Si models. All non-trailer loads - bike racks, cargo carriers and so forth - should be supported with stabilizing straps. Failure to properly support these loads will void your hitch warranty from Curt.
    view full answer...
  • Trailer Hitch and Wiring Recommendation for 2018 Honda Fit
    Offically Honda states your 2018 Honda Fit is not rated for towing a trailer. Since people will still tow and there is a demand for a hitch for your vehicle we have a hitch like the Curt part # C11406 which is a confirmed fit as well as trailer wiring like # 118767. For a ball mount you'd need the part # C45521 as well.
    view full answer...
  • Curt RockerBall for 2015 BMW 328xi Wagon
    Yes, the Curt RockerBall # C94CR meets your needs of a 2" Hitch Ball. This has a 3/4" Diameter Shank that is 2-1/8 Inch in length. If you need a drawbar for your 1-1/4" hitch I suggest the Curt Class II Drawbar # C45521.
    view full answer...
  • Recommended Trailer Hitch and Cargo Carrier for Mower On 2014 Honda Civic
    In order to install a cargo carrier on a 2014 Honda Civic you will first need a trailer hitch, the Draw-Tite Sportframe Trailer Hitch Receiver part # 24763 is what I recommend. This can then be paired with the 19x47 Curt Cargo Carrier part # C18110 which will work just fine for a lawnmower. Please note, you will have to prop the wheels on the mower outside the platform but this is really the only option since they don't make the carrier wide enough for this. That said, there are plenty...
    view full answer...
  • Trailer Hitch for 2016 Honda HR-V to Tow Trailer for Scooter
    Since the hitches available for your 2016 Honda HR-V are lower in capacity like the Curt hitch # C18145 which has a tongue capacity of 200 lbs which would be too close to the weight of your scooter. Best option would be to tow a small trailer with your vehicle. To do that you'd also need trailer wiring like the Tekonsha part # 118673 and a ball mount like # C45521.
    view full answer...
  • Replacement Hardware Kit For Curt Trailer Hitch C11054
    For a replacement hardware kit for your Curt Trailer Hitch Receiver # C11054 all you need is the following: - Replacement Hardware Kit for Trailer Hitches # RHK All you need to do is click # RHK, enter "C11054" in the "Hitch Item Number" box, select "Curt" from the "Manufacturer" drop-down menu, hit "Add to Cart" and you're set.
    view full answer...
  • How to Pick Out a Ball Mount for Towing a Yakima Rack and Roll Trailer Level
    In order for the Yakima Rack and Roll trailer part # Y08107 to be towed level you will want to go with a ball mount that will put the hitch ball right at 22 inches from the ground. You will need to measure from the top of your hitch opening to the ground. The difference between that measurement and 22 is the amount of rise/drop you would need. Once you determine that you will want to check out the link I attached that will take you to a page that has all of the 1-1/4 inch ball mounts we...
    view full answer...
  • How to Pick Out a Ball Mount for a 2014 Subaru Forester to Tow Trailer Level
    When picking out a ball mount for a vehicle like your 2014 Subaru Forester you want to go with the ball mount that will allow the trailer to be towed as level as possible. To do this you will need to measure from the top of the hitch opening to the ground and then with the trailer as level as possible measure from the bottom of the coupler to the ground. The difference between these two measurements is the amount of rise/drop you will need. I attached a help article that covers how to...
    view full answer...
  • Kayak Carrier for Track Mounting
    Inno offers a kayak carrier that mounts into the T-slots in rack bars, their Locker Watersport Carrier # INXA445. If you refer to the linked diagram you can see the slot dimensions this carrier will fit into. The carrier also needs a bar spread of no less than 24-inches, also noted on the diagram.
    view full answer...
    Image 1 for
  • Trailer Hitch Receiver Confirmed to Fit 2007 BMW 335i with Dual Exhaust
    We do carry a hitch receiver that will fit your 2007 BMW 335i as long as you don't have a diesel engine. The Curt # C11756 is designed for your BMW. We have some pictures on the product page of it installed on a 335i with dual exhaust. If you're going to be towing then you'll also need a wiring harness and ball mount. The wiring harness for your BMW is # C59236. This will provide a 4-way trailer connector to power a trailer's lights. The recommended ball mount with the Curt hitch...
    view full answer...
  • Trailer Hitch Recommendation for 2010 BMW 335i with Dual Exhaust Sedan
    We do carry a hitch receiver that will fit your 2010 BMW 335i as long as you don't have a diesel engine. The Curt # C11756 is designed for your BMW. I attached a picture of it installed on a 335i with dual exhaust. If you're going to be towing then you'll also need a wiring harness and ball mount. The wiring harness for your BMW is # C59236. This will provide a 4-way trailer connector to power a trailer's lights. The recommended ball mount with the Curt hitch is # C45521. It provides...
    view full answer...
    Image 1 for
  • Ball Mount Recommendation for Curt Hitch for 2008 BMW 335xi
    With Class I hitches like what is available for your 2008 BMW 335xi, part # C11033 you have to go with the recommended ball mount otherwise the warranty of the hitch is no longer valid. So you have to use the part # C45521 which is what Curt recommends. It has a 2-5/8 inch drop and 3-1/4 inch rise.
    view full answer...
  • Troubleshooting Low Ball Mount Ground Clearance on a 2003 Chrysler Town and Country
    The Curt Class II Trailer Hitch, part # C12362, is the correct trailer hitch for your 2003 Chrysler Town and Country and the ball mount, part # C45521, is the recommended ball mount for that hitch. It is perfectly safe to turn the ball mount upside down to gain more ground clearance. This is called using the ball mount in the rise position. It is recommended for your vehicle to use this ball mount in the rise position since the trailer hitch is low to the ground. I do not recommend...
    view full answer...
  • Ball Mount that Comes with Curt Trailer Hitch C111693
    The ball mount that comes with the hitch part # C11169 that you referenced is the Curt # C45521. Since this is a Class I hitch that means you have to only use the recommended ball mount. It should get you pretty close to towing your trailer level, but if not there isn't an alternative that Curt will recommend. The trailer wiring you would need is the Curt kit part # C59496 which does have a converter box which will take the wiring signals of your vehicle and convert them to a 4-way style...
    view full answer...
  • Which Ball Mount Should be Used with Curt Hitch Installed on 2013 Toyota Corolla S
    With Class I hitches like what fits your 2013 Toyota Corolla you have to use the recommended ball mount from the hitch manufacturer otherwise you void the warranty of the hitch. For the Curt hitch # C11265 for your 2013 Toyota Corolla you can only use the Curt ball mount part # C45521 to stay in compliance with your warranty.
    view full answer...
  • What Hitch Receiver Do You Recommend for My 2021 Ford EcoSport for Towing a Small Trailer?
    For a great hitch that will be able to accommodate a small trailer on your 2021 Ford EcoSport, I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class II - 1-1/4" # C12188. The Curt hitch will provide your vehicle with up to 3,500 pounds of gross tow weight capacity and is manufactured in the U.S.A. For brake light and turn signal functionality, I recommend the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector # C59236. The Curt connector installs directly to...
    view full answer...


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