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  1. Trailer Hitch Ball Mount
  2. CURT
  3. Adjustable Ball Mount
  4. Fits 2-1/2 Inch Hitch
  5. Drop - 6 Inch
  6. Rise - 5 Inch
Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K
CURT

Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K

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$285.14
Retail:$527.95
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Trailer Hitch Ball Mount
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This heavy-duty steel, adjustable ball mount lets you tow up to 10,000 lbs with the 2" ball or 20,000 lbs with the 2-5/16" ball. Can be used in 6" drop or 5-1/4" rise positions. Fits 2-1/2" x 2-1/2" hitch receivers. Great Prices for the best trailer hitch ball mount from CURT. Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K part number C45902 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (365)
  • Q & A (0)
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CURT Trailer Hitch Ball Mount

  • Adjustable Ball Mount
  • Fits 2-1/2 Inch Hitch
  • Drop - 6 Inch
  • Rise - 5 Inch
  • Two Balls
  • 20000 lbs GTW
  • 2 Inch Ball
  • 2-5/16 Inch Ball
  • CURT
  • Steel Shank - Gloss Black

This heavy-duty steel, adjustable ball mount lets you tow up to 10,000 lbs with the 2" ball or 20,000 lbs with the 2-5/16" ball. Can be used in 6" drop or 5-1/4" rise positions. Fits 2-1/2" x 2-1/2" hitch receivers.


Features:

  • Ball mount with built-in hitch balls lets you hook up your trailer to your tow vehicle
    • Shank slides into hitch receiver
    • Ball provides connection point for trailer coupler
  • Adjustable height lets you tow trailers of different heights with the same vehicle
    • Slide ball mount up or down along shank and secure in place with included pins and clips
  • 2 Different-size hitch balls let you tow trailers with different coupler sizes
    • To switch ball, simply remove pins, rotate balls, and reinsert pins
    • Adjusts in 1" increments
  • Channel-style mount also lets you attach a pintle hook (C45922 - sold separately)
  • Anti-rattle design helps to reduce towing noise
  • Heavy-duty steel construction
  • Black powder coat on ball mount and zinc coating on balls resists corrosion
  • Hitch pin and clip included


Specs:

  • Application: 2-1/2" x 2-1/2" trailer hitch receivers
  • Gross towing weight:
    • When used with 2" ball: 10,000 lbs
    • When used with 2-5/16" ball: 20,000 lbs
  • Tongue weight: 2,000 lbs
  • Distance from center of hitch pin hole to center of ball:
    • Hitch pin hole closest to ball: 10-3/8"
    • Hitch pin hole farthest from ball: 11-3/8"
  • Distance from center of hitch pin hole to the closest point of the support gusset:
    • Hitch pin hole closest to gusset: 3"
    • Hitch pin hole farthest from gusset: 4"
  • Maximum rise: 5-1/4"
  • Maximum drop: 6"
  • Pin hole diameter: 5/8"
  • Interior channel width: 3"
  • Limited 1-year warranty


How to Measure Drop on Adjustable Ball Mount


45902 Curt Channel-Style Adjustable Ball Mount w/ 2" and 2-5/16" Balls

Item # C45902




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

364 reviews
This heavy-duty steel, adjustable ball mount lets you tow up to 10,000 lbs with the 2" ball or 20,000 lbs with the 2-5/16" ball. Can be used in 6" drop or 5-1/4" rise positions. Fits 2-1/2" x 2-1/2" hitch receivers.

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See what our Experts say about this CURT Trailer Hitch Ball Mount

  • How Much Does The BulletProof Hitches Aluminum Adjustable 2-Ball Mount - 2-1/2" Hitch Weigh?
    Good question, Bill! Kind of surprised we don't have that listed anywhere, but the BulletProof Hitches Aluminum Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop/Rise - 14K # BPH77MR weighs right at 19.5 pounds. This makes it the lightest with this kind of capacity. Just to compare, here are a few similar options: Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K # C45902 - 35.5 pounds Gen-Y Adjustable 2-Ball Mount w/ Stacked Receivers - 2-1/2" Hitch - 6" Drop/Rise...
    view full answer...
  • Will InfiniteRule Locks Fit Curt Adjustable 2-Ball Mount
    Hello JD; you can use InfiniteRule locks with the Curt Adjustable 2-Ball Mount # C45902. However, the # 34061071-D is designed for 2" hitches so it will not fit. For the hitch pin you need the # 34061072-D which is designed for a 2-1/2" receiver. The # 34061074-D can replace one of the pins on the adjustable channel as seen in the photos below.
    view full answer...
  • Is The Curt Adjustable 2-Ball Mount Able To Come With A 1 7/8 Ball?
    Hey Trevor, The Curt Adjustable Ball Mount # C45902 does not offer a 1-7/8" ball option. It is specifically designed for a 2" or 2-5/16" ball. If you are needing an adjustable ball mount with the 1-7/8" ball included for a 2-1/2" hitch I recommend the B&W # BWTS20049B. This is an 18k ball mount that includes a tri ball shank giving you all the standard ball sizes for towing. The curt you mention has a 6" drop, the B&W has a 7" drop, 7-1/2" rise for plenty of adjustability. Are you needing...
    view full answer...
  • Can Anti-Rattle Rubber Insert be Used for 20K Curt Adjustable Shank for 2-1/2 inch Hitch Receiver
    Yes it will! The Rubber Bumper # C45921 is a direct replacement for the Curt Adjustable Ball Mount # C45900 but the only differences between the shank that comes with that system and the Replacement Shank # C45917 that you referenced is the weight capacity and the size of the shank that fits into the hitch receiver. The ball mount kit # C45902 that the larger shank is a replacement for does come with an anti-rattle bolt that installs in one of those holes at the back-side but we have a...
    view full answer...
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  • Comparing Curt and Flash Adjustable 20,000LB 2-Ball Mount Hitches
    The Curt Adjustable 2-Ball Mount # C45902 is manufactured overseas. If you are looking for a similar made in the USA adjustable ball mount the Flash Solid Steel HD Adjustable 2-Ball Mount # FA49-00-5625 has the same 2-1/2" receiver, 6" drop, 20,000lb rating with the 2-5/16" hitch ball and 2,000LB tongue weight rating. The Flash 2" hitch ball has 12,000lb rating versus only 10,000lbs on the Curt. The Hitch Lock and Adjustment Pin Lock Set # FA86-00-4225 will ensure that your ball mount...
    view full answer...
  • Recommended Locking Pin Set For Curt Adjustable 2-Ball Mount # C45902
    We have just what you need. For your Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K # C45902 you will need the Curt Lock Set for Adjustable Channel-Style Mounts # C23556 which was made specifically for this ball mount and will be plenty stable at 20000lbs. I included videos of the products mentioned for you to take a look at.
    view full answer...
  • Will Curt Lock Set Fit Curt Adjustable 2-Ball Mount for 2" and 2-1/2" Hitches
    Yes, the Curt Lock Set # C23556 will work with both the # C45900 and # C45902 meaning the 2-1/2" hitch won't be a problem. The pair of locks comes keyed alike but there is no option to match the keys between the sets of locks.
    view full answer...
  • Total Height of Curt Adjustable 2-Ball Mount C45902
    As you can see from the diagram I made for you, the total height is 10-5/8" for the Curt Adjustable 2-Ball Mount # C45902. The # C45902 is for 2-1/2" hitches, comes with a dual 2" and 2-5/16" hitch ball with 10k and 20k respective capacities and also includes the pin and clip. For some added security you can add Hitch Receiver Lock # e98881.
    view full answer...
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  • Anti-Rattle Device for Curt Adjustable Ball Mount # C45902 on a 2013 Ram 3500
    There are 3 places of possible movement for Curt adjustable ball mount # C45902: the 2 pins that hold the ball to the shank and between the shank and the hitch itself. If you have that screw at the ball part nice and tight then you are probably getting movement at the hitch receiver. To keep the screw from coming loose a lock washer could be used. You can reduce or even eliminate movement at the hitch using an anti-rattle device such as # RSCP. With adjustable ball mounts like this there...
    view full answer...
  • Comparing Flash Solid Steel HD Adjustable 2-Ball Mount and Curt Channel Adjustable 2-Ball Mount
    The weight of the Flash Solid Steel HD Adjustable 2-Ball Mount # FA49-00-5625 that you referenced is 37 lbs, and the weight of the Curt # C45902 is 36 lbs. So in that regard they are essentially the same. They really are quite a bit alike in most ways. Same capacity at 20,000 lbs, both fit 2-1/2 inch hitches, both can do same amount of drop at 6 inches, both are highly reviewed by our customers, and both have very similar prices. I'd say the edge goes to the Curt though since it has two...
    view full answer...
  • Is there a Ball Mount Larger than a Class V 2-1/2 Inch
    If your hitch receiver opening is larger than 2-1/2 inches then the next step up is a 3 inch if you are talking about physical size and not capacity. The 3 inch ball mount you need is # 40701 if this is the case. The hitch ball to fit is # C40085. This is not a common size though so I do recommend verifying the size of the receiver opening on the hitch. I have also included a link to our ball mount main page. If you mean capacity then the highest capacity 2-1/2 inch ball mount that we...
    view full answer...
  • Distance From Pin Holes To Support Gusset of Curt Adjustable Ball Mount C45902
    On the Curt Adjustable Ball Mount part # C45902 the distance from the nearest hitch pin hole to gusset measures 3 inches and then from the furthest pin hole 4 inches.
    view full answer...
    Image 1 for
  • Adjustable 20,000 lb Ball Mount Option with Silver Colored Hitch Ball
    I have a possible solution for you, but Curt does not offer a silver two ball attachment for the Curt Adjustable Ball Mount # C45902. One possible solution for you is the Fastway E Series HD Adjustable 18K Ball Mount # FA42-00-2625. A nice feature about the Fastway ball mount is the corrosion resistant aluminum construction. This will be good if you are in a cold climate with salt on the roads. A hitch lock is also available for this ball mount, # FA86-00-3685. If you don't need both...
    view full answer...
  • Raised Plates on the Shank of the Curt Adjustable 2-Ball Mount Part # C45902
    The raised square plates on shank of the Curt Adjustable 2-Ball Mount part # C45902 are present on older versions of the ball mount but not all. The new version of this ball mount has the smooth shank like you have mentioned. The version of this ball mount we carry is the one that has the rounded shank.
    view full answer...
    Image 1 for
  • Class V Trailer Hitch For A 2022 Ford F-250 Super Duty
    Yes, the Curt Trailer Hitch Receiver # C15802 does fit your 2022 Ford F-250 Super Duty. This is a class V hitch with a gross towing weight of 20,000lbs and a maximum tongue weight capacity of 2,700lbs. If you need a ball mount, a great option is the Curt Adjustable 2-Ball Mount # C45902. This is an adjustable ball mount capable of handling 20,000lbs when using the 2-5/16" ball.
    view full answer...
  • Will the Curt Ball Mount part # C45902 Work with the Curt Pintle Hook part # C45902
    Yes the Curt Pintle Hook with 2-5/16" Hitch Ball part # C45922 is designed to be used with the Curt Adjustable 2-Ball Mount part # C45902. The ball mount has the three inch channel that the pintle hook requires to work. You will use the pins for the ball set for the pintle hook as well.
    view full answer...
  • Recommended Trailer Hitch Receiver For 1998 Chevy K3500
    For a 1998 Chevrolet K Series 3500 Pickup, I recommend the Draw-Tite Ultra Frame Trailer Hitch Receiver Class IV - 2" # 41901. This is an extremely sturdy hitch that is easy to install. It will fit a standard or step bumper. For a roll-pan bumper, use # 41522. For your wiring, I recommend the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118315 to get a 4 way connection. Then you will want to add the # ETBC7 to get your 7 way connection along with the circuit breakers,...
    view full answer...
  • What Size Allen Key for the Curt Adjustable 2-Ball Mount
    I spoke to my contact at Curt and they informed me that the Curt Adjustable 2-Ball Mount part # C45902 uses a 3/8" hex key like the Replacement Anti-Rattle Set Screw part # C45916.
    view full answer...
  • Why Do Rear Tires on Tandem Horse Trailer Run Hotter Than Those on Front Axle
    If the tires on the rear axle of your tandem axle horse trailer are running hotter than those on the front axle, this could be due to several possible causes. One of these causes you mentioned; the trailer not being level when hitched. If the trailer rides nose-high this tends to place more of the trailer's load onto the rear axle. This could easily cause those rear tires to run hotter. All trailers tow best when they are level so if you need to switch ball mounts you can choose one with...
    view full answer...
  • Best Trailer Hitch for a 2008 GMC Sierra 2500
    The best trailer hitch for your 2008 GMC Sierra 2500 will vary depending on what you're going to use it for and possibly whether you have an 8 ft. or 6-1/2 ft. bed. If you need to haul a lot of weight I would suggest the Curt Class V CD 2-1/2" # C15703. This will get the most out of your truck for your dollar and will work with either length of truck beds. The Curt Class III # 13208 will also work with both bed lengths and would be more appropriate if you're not hauling as much weight. I...
    view full answer...
  • Is Replacement Shank Available for Curt Adjustable 2-Ball Channel Mount with 10-3/8" Drop
    The Replacement Shank # C45917 is for the Curt Adjustable 2-Ball Channel Mount # C45902 which has a 5-1/4" rise/6" drop. I reached out to Curt and my contact said that at this time (July 2020) there is no replacement shank for the Curt Adjustable 2-Ball Channel Mount # C45927 so you'll have to pick up the entire ball mount to use this shank.
    view full answer...
  • Do I Still Need a Ball Mount with My Weight Distribution Hitch
    It sounds like you're trying to add a weight distribution hitch to your trailer, so you don't actually need to use the Curt # C45902 with it. In most cases you can get a weight distribution hitch that comes with a shank included, like the Curt Tru-Track # C17501 which is designed for trailers with a tongue weight of 1000-lbs and 1500-lbs. There are some that do not come with the shank included, so you'll want to choose one that does where possible as long as you don't need one with a...
    view full answer...
  • Fit of Curt # C45920 Channel Mount Pintle on Curt # C45900 Adjustable Ball Mount
    The Curt Channel Mounted Forged pintle/trailer ball will indeed fit in the 3 inch wide channel of the # C45900 or the # C45920 ball mount. I've confirmed this with my Curt representative.
    view full answer...
  • Adjustable Ball Mount for 2-1/2 Inch Hitch with 6 inches of Drop
    The best option we have for what you are looking for is the Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K # C45902 which fits your 2-1/2 inch hitch, can do a drop of up to 6 inches, and comes with a 2" and 2-5/16" hitch ball.
    view full answer...


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