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  1. Straight Tongue Trailer Coupler
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  3. 2-5/16 Inch Ball Coupler
  4. 3 Inch Channel
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  6. 21000 lbs GTW
Dexter Zinc-Plated Straight-Tongue Coupler - 21,000 lbs

Dexter Zinc-Plated Straight-Tongue Coupler - 21,000 lbs

Item # T4853100
Our Price: $223.04
Straight Tongue Trailer Coupler
Shipping Weight: 14 lbs
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Perfect for your heavy-duty towing needs, this rust-resistant, extended-length coupler is designed to be bolted onto your trailer's tongue. Great Prices for the best straight tongue trailer coupler from Dexter. Dexter Zinc-Plated Straight-Tongue Coupler - 21,000 lbs part number T4853100 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (106)
  • Q & A (0)
  • Videos (1)
  • Photos

Dexter Straight Tongue Trailer Coupler - T4853100

  • 2-5/16 Inch Ball Coupler
  • 3 Inch Channel
  • Standard Coupler
  • 21000 lbs GTW
  • Bolt-On
  • Dexter
  • Trigger Latch

Perfect for your heavy-duty towing needs, this rust-resistant, extended-length coupler is designed to be bolted onto your trailer's tongue.


  • Extended length provides reinforcement for heavy-duty towing
  • Zinc plating is corrosion resistant
  • Durable steel construction
  • Easy-to-use, trigger-style latch
  • SAE J684 certified
  • Bolt-on installation
  • Made in the USA


  • Ball size: 2-5/16"
  • Mounting: 3" wide channel tongue
  • Capacity: 21,000 lbs
  • 1-Year warranty

074-350-00 Dexter Axle Extended Coupler - 2-5/16"

Replaces Titan 4853100

Video of Dexter Zinc-Plated Straight-Tongue Coupler - 21,000 lbs

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

Video Transcript for Titan Straight Tongue Trailer Coupler - Standard Coupler - T4853100 Review

Speaker 1: Today we're going to take a look at the Titan Zinc-Plated Straight Tongue Coupler for 2-1/2" hitch balls. It has a 21,000 pound weight capacity.This is perfect for your heavy duty towing needs. It's a rust resistant, extended length coupler, designed to be bolted onto trailer's tongue. The extended length will provide reinforcement for heavy duty towing. It has a nice zinc plating to it, which is corrosion resistant. It is a durable steel construction.

It does use the easy-to-use trigger style latch, you can see, to open it just like that. Then when you close it, it'll lock right into place.This is SAE J684 certified, and it is a bolt-on installation. This part is made in the U.S.A.Again, it's designed to fit a ball size of 2-5/16ths diameter. I happened to pull a hitch ball in that size just to show you how this would connect. You just pull your trigger latch all the way open, and you can drop that right on there.

Then if you release your trigger latch, you can see that it locks it right into place. Then to remove it, just pull open on your trigger latch, and you can take the ball right out. Again, the capacity on this is 21,000 pounds.Going to give you a few measurements on this. It is designed to fit a 3" wide channel tongue. Overall length from the edge here to the very back is 16-1/2".

The channel length section, which is here to here, is going to be right at 9-1/2". The height from the very bottom to the very top is going to be right at 4" tall. The overall width, from outside to outside, is going to be right at 3-5/8". The inside is right at about 3-1/8". On the mounting holes, the measurement center to center on the two smaller inner holes is 3".

On the two larger outer holes is 5" center to center.But that should do it for the review on the Titan Zinc-Plated Straight Tongue Coupler for 2-1/2" hitch balls, and it has a 21,000 pound weight capacity.

Customer Satisfaction Score:

Customer Reviews

Dexter Zinc-Plated Straight-Tongue Coupler - 21,000 lbs - T4853100

Average Customer Rating:  4.9 out of 5 stars   (106 Customer Reviews)

Perfect for your heavy-duty towing needs, this rust-resistant, extended-length coupler is designed to be bolted onto your trailer's tongue.


Excellent company, shipping, customer service, first of all!
Love the new 2-5/16" hitch coupler! Now I don't have to flip the ball when going between my band equipment trailer (lead guitarist in a rock/blues/country band), and the boat!!! I only used 3 bolts since my old surge brake hitch coupler only utilized two of the 1/2" bolts. I drilled the trailer for the 3rd rear/lower 1/2" bolt using schedule 8 yellow zinc bolts and hardware. SOLID!!! for ALL your needs!!! I'll be converting and rebuilding the front axle brakes in the off-season. Already have the electro-hydraulic unit.

Will M.




Of course, none of the holes lined up. So me and "Macgyver" had our work cut out for us. In saltwater my old coupler lasted 15 years till it rusted so bad I was afraid it would break apart. So this time I painted it with the same non-skid paint that's on my aluminum boat deck. Some serious stuff. But first I cleaned it thoroughly, used primer, then the no-skid paint. I step on this coupler 200+ days a year with saltwater feet. This one was a lot more HD than my old one. A bit longer and just plain nicer over all. I hope now to get 20 more years out of this VERY expensive unit...reason for 'not' 5 stars. Dang almost $XXX when all said and done? That's A LOT! I KNOW, the shipping isn't cheap, but I am. Last year all new galv. rims and tires from etrailer and what a great deal that was! So, I guess I shouldn't complain, Okay, 4.75 stars, cuz no one is perfect.

The J.



Etrailer Expert

Katrina B.


That sounds way more difficult than it should be. Let me get you over to our customer service department for them to look into this for you.

The J.


well thats what it does. as if the hitch isnt going on my perfectly fine on my greased ball. Ive learned to live with it, and move on. Could be just fine for the net person.


Fits like a glove. Now all my trailers use the same size ball. Made in the USA.


The Website made it easy for me to find the right part for my trailer. My part arrived in perfect shape and way faster than I was expecting it to be delivered(Hawaii). I will be ordering more from them in the near future for sure. Now I can get back on the fish! Mahalo and Aloha! Kapaa,Kauai HI 96746



1 year after purchasing this trailer part its been working out great! Even with the high use and super salty Hawaiian weatherwater its been holding up fine and I feel it will hold up for a long time to come. I really made the right decision by ordering this from and am in the process of ordering a new heavy duty trailer jack to replace my exisiting one that has done its job for me and my boat over the past 21 years so it will be retired and put into light duty on a smaller carry all trailer so it is still being used and appreciated.Cant wait to get the new addition to my family from trailer jack Aloha!!


Fast shipping, great receiver easy to install


You folks are GREAT!!!!! Say I looked around the world for one of these particular coupler 2 5/16 Ball w 3 in. channel. I received it today like I just ordered A few days ago. Thank you guys and will be shopping YOUR store more often. Have a Great day.



The Tongue Coupler is a great product. Yes I looked everywhere for a decent coupler till I found you. yep. So yeah I am very satisfied Thank you and I need a new trailer now haha. ok later.


Fit and finish outstanding! I am not an engineer but i would have like to see the bolt holes about 1/4in further apart. The lock washers and bolt heads are so close they touch the other bolt head.

If this was made to fit an existing hole pattern there is nothing you can do... Mine was a fresh tube install and that was my only problem.

Now I just have to reinstall the safety chains that were welded on.

Thanks much for the great part!


Direct bolt-on for the Titan 10 Surge coupler I removed.



Rock solid still.


Coupler works good and is nice and tight, so it won't rattle. It fit right up to the bolt pattern on the EZ loader trailer. Like the fact that the coupler fits over the trailer frame, instead of sitting on top. Less things to trip over, and looks better. Used this to get rid of the surge brake coupler after converting the trailer to electric over hydraulic brakes.


Overkill for the boat trailer but now all three of my trailers have 2 5/16 couplers

Peter D.


Works great


I bought this to replace a tongue with a hydraulic brake system that was no longer in use due to an electric brake upgrade. It fit on the trailer with no problems. The holes matched right up. Its a good quality steel with a great finish. The only issue I have is the locking mechanism is very finicky and getting it to lock or unlock can be a chore. I am hoping it just needs to be broken in and will get smoother with use. Other than that its been a great replacement.


Only place I found it. Had to modify to fit which worked out perfect. Was delivered in a couple days and makes it easier to have the same ball size on all the trucks. Expert company with great service


Great product with excellent craftsmanship.
used it to replace a 2" ball bolt on coupler so all of my trailers are consistent.
The only minor complaint is the 1/2" holes are too close to the 5/8" holes, so when I put the washer on the 5/8" holes I was not able to drill the 1/2" holes unless I was to get creative and start grinding down washers for clearance.
Seeing as I mounted it on a trailer with a 7000# GVW and it will never come close to the 21000# rating. I feel confident in using just the two 5/8" bolts. The coupler it replaced only had two 1/2" bolts holding it on.


I wanted both my trailers to have a 2 5/16 coupling to save keep changing tow balls. This item was perfect, it is very heavy duty and replaced the 2" coupling on my boat trailer without any further drilling. The locking mechanism is very good and positive. The price was great and the shipping was excellent, ordered on Monday, delivered on Wednesday. It doesn't get any better than that!


Great product, I was tired of my trailers not all being 2-5/16" balls, so now I don't have to have different hitches on the trucks.


Top shelf products, excellent selection, awesome prices. Converting a tandem trailer to electric brakes, these guys had it all from bolt on coupler to the new drums! Love these guys!


Great product at a good price. Product would have gotten 5 stars if there wasn't a little area on one side where something messed up the finish (almost looks like a splotchy area that has some acid splattered on it?). Small area so I will live with it. Very nice heavy duty coupler.

Richard W.


I am still happy I bought this heavy duty coupler, BUT one thing... It is a little hard to get it to lock down on the ball it hangs up. We have an electric jack, so we play with up and down a little, and try to move the trailer back and forth a little, and it locks down - but it is finicky. Once locked down, I have total faith that it is there to stay though! It unlocks easily every time though, so thats good.


I used this coupler to replace the 2" coupler on a recently purchased tow dolly. My other trailers have 2 5/16" couplers and I preferred to commonize all towed units to eliminate any possibility of mis-applying a ball size. In addition, I like the security of an oversized coupling.


Well built and never jams. If you are going from hydraulic to electric brakes this is the hitch for you.


First time with etrailer. Nice user friendly website. Badass trailer coupler destined for serious abuse towing a large boat over rough roads to remote, poorly maintained launch sites. Arrived ahead of schedule accompanied by a follow-up email. Thanks e-trailer
P.S. More trailer parts to be ordered soon! BD


The trailer hitch works great on my cattle hauler, I no longer worry about becoming disconnected. Very good bargain on the cost.


Once again I made a purchase from etrailer and I am very happy with the merchandise. Everything I have purchased from a trailer ball to more than one set of tires for multiple trailers has been well above average. Very fast processing of my order and the delivery.
The customer service is what really pushes my rating to a 5. Everyone is not only knowledgeable but great people who are always happy to help.
And no, I was not paid to give this review and I am a real customer.
Great company to do business with.


Product was recieved on time and just as pictured in review. Installation was east with pre-drilled holes. Ordering was fast and easy and Etrailer representative handled all my questions quickly.
I will highly reccomend E-Trailer for trailer parts and needs.


Strong-sturdy and solid. would recommend for any two axle trailer.

Jerry S.


Still works and looks like new, which is amazing since it is surrounded by salt air here in Hawaii.


The product was ordered on Wednesday. I paid for the 3 day delivery. It arrived here today. Quick service, quality part. etrailer followed up to day. The part was heavy duty. Because of the weather, I probably won't install till spring. I am very satisfied with the service . I will definitely do business with them in the future .


Best regards

Show More Reviews

See what our Experts say about this Dexter Straight Tongue Trailer Coupler

  • What is the Capacity of the Titan Extended 2-5/16 inch Bolt On Coupler, # T4853100
    The Titan Extended 2-5/16 inch Bolt On Coupler, # T4853100, is rated for 21,000 pounds capacity. To be able to tow that much weight, all components would need to be rated for at least 21,000 pounds including the tow vehicle, the hitch, the ball, all the hardware, and the trailer.
    view full answer...
  • Will the Titan Extened 2-5/16 Inch bolt On Coupler # T4853100 Fit on a 3X4 inch Trailer Tongue
    The Titan Extended 2-5/16 inch Bolt On Coupler, item # T4853100, is designed to fit over a 3 inch wide trailer tongue. As long as the top of your trailer tongue is 3 inches wide this coupler will work. This coupler is designed to replace the model 6 hydraulic actuators when eliminating the hydraulic brakes and has the same hole pattern.
    view full answer...
  • How Tight Should the Bolts be to Secure the Titan Trailer Coupler # T4853100
    There is no specific torque rating for securing the Titan coupler # T4853100. What you will need to do is tighten the bolts down as much as you can without crushing the metal of the coupler and trailer tongue. If you see the metal start to bend a little, that is tight enough. It is recommended to use all bolt holes to secure the coupler and to use grade 8 hardware.
    view full answer...
  • Can Surge Brake Actuator be Left Installed with Trailer Converted to Electric Brakes
    You can leave your current surge brake actuator installed on your trailer and use electric brakes. The actuator would move like you mentioned unless you locked it out somehow (some people weld the pieces) but it would work fine. Not every tandem axle trailer will have brakes on both axles. It's pretty common to see only one of the axles with brakes like yours. I attached a link that will walk you through the entire process of adding electric brakes to your trailer for you to check out...
    view full answer...
  • Is Titan Zinc-Plated Straight-Tongue Coupler SAE Certified
    The Titan Zinc-Plated Straight-Tongue Coupler, part # T4853100 is designed to fit a 3 inch wide channel tongue on your trailer. This entire coupler is rated for 21,000 lbs, not just one component. I called my contact at Titan and they told me that this coupler is SAE J864 certified, which is the certification number for 21,000 lb couplers. I have attached a link to a product review video you can check out.
    view full answer...
  • Should I Replace the Dexter Zinc-Plated Straight-Tongue Coupler item T4853100?
    There's no adjustments or replacement parts available for the Dexter Zinc-Plated Straight-Tongue Coupler item # T4853100 you were looking at. If this is the same one that's on your trailer I do recommend replacing it if you are concerned about it coming off of your hitch ball. If this isn't the one you have on your trailer, go ahead and email me back the part number or model of your current coupler and I will see if there are any replacement parts.
    view full answer...
  • Installation Recommendation for Titan Zinc-Plated Trailer Coupler T4853100
    The Titan Zinc-plated trailer coupler # T4853100 is designed to be mounted using all five bolt holes, and I would strongly recommend doing so. There is not really a way to know what the weight capacity would be, depending on the number and placement of bolts you would use otherwise. I am including a link to a video review going over the features of the coupler for you to reference if needed. The most important thing to note would be that upgrading to a heavier duty trailer coupler is...
    view full answer...
  • Measurements of Titan Zinc-Plated Straight-Tongue Coupler
    I went out to the warehouse to take some measurements of the Titan Zinc-Plated Straight-Tongue Coupler # T4853100 for you. Based on the measurements, the Titan # T4853100 will not fit into a 4 inch square tube. The width of the coupler is 3-3/8 inches. The height of the channel is 4 inches. From the back to the start of the weld measures 9-1/2 inches long, and overall the coupler measures 16-1/2 inches long. I have attached a photo showing these measurements for you.
    view full answer...
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  • Dimensions Of Titan Zinc-Plated Straight Tongue Trailer Coupler # T4853100
    The bolt pattern showing two slightly higher holes 3 inches on center and two slightly lower and larger holes 5 inches on center from each other is the proper bolt pattern. The part that actually fits over the trailer tongue has an internal width of 3 inches. It is fabricated from 3/16 inch steel and is zinc coated giving it about a 1/4 inch thickness. I've attached a video where you can see these measurements.
    view full answer...
  • What is Typical Tongue Weight Relative to Trailer Weight
    To get the best towing experience you want to have your trailer tongue weight between 10 and 15 percent of the total trailer weight. So for a trailer that weighs 14,000 lbs ideally you'd have between 1,400 and 2,100 lbs of tongue weight. With that much weight though being closer to 10 percent would be better. If you get below 10 percent your trailer will start wanting to sway. I attached a help article on determining tongue weight for you to check out as well.
    view full answer...
  • Will Dexter Straight Tongue Coupler # T4853100 Replace DX20 Actuator?
    Yep! The farthest mounting holes on the Dexter Straight Tongue Coupler # T4853100 you were looking at are 5" apart as shown in the included diagram, and I was able to find that the DX20 you have uses mounting holes 5" apart as well allowing you to reuse your existing mounting holes.
    view full answer...
    Image 1 for
  • Will Titan Trailer Coupler T4853100 Bolt In Place of a Model 6 Brake Actuator
    First, unless the coupler that you have is not functioning properly, does not couple to the ball, or is damaged, you do not have to change it out. It will still function just fine with electric brakes. I went out to the warehouse to determine the mounting pattern of the Model 6 actuator and the coupler, # T4853100. I found that the 2 couplers do have similar mounting patterns. I have included some pictures that shows the bolt hole patterns of each for you. The regular coupler should bolt...
    view full answer...
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  • Replacement Coupler Recommendation for a Trailer with a 3 inch Wide Channel
    The Titan Coupler part # T4853100 would work well for you as it is designed for 3 inch wide channel like what your trailer has and can be bolted on. You would need to drill the needed holes on your trailer but it would easily mount and work well. It has a 21k capacity and is designed for a 2-5/16 inch hitch ball. I attached a review video for this coupler for you to check out as well.
    view full answer...
    Image 1 for
  • Bolt Spacing On A Titan Zinc-Plated Straight-Tongue Coupler # T4853100
    I went out to the warehouse to determine the mounting pattern of the Model 6 actuator and the coupler, # T4853100.I have included a picture below that shows the bolt patterns. The 2 holes are at 1.031 inches, the last 2 holes are at 1.25 inches and the 1 hole is at 2.071 inches. I attached a review video link below.
    view full answer...
    Image 1 for
  • What Does Titan Zinc-Plated Straight-Tongue Coupler # T4853100 Weigh
    The Titan Zinc-Plated Straight-Tongue Coupler # T4853100 that you referenced weighs 14 lbs and has a 21,000 lb total trailer weight capacity.
    view full answer...
  • Regular Trailer Coupler to Replace Titan Model 6 Actuator T4079200
    To replace your Titan actuator # T4079200 with a standard coupler that will bolt on in its place you can use Titan coupler # T4853100. It also fits a 3 inch wide tongue and has the same bolt pattern. I have included a link to a video review of this coupler for you.
    view full answer...
  • Replacement Fixed Coupler Recommendation to Replace Titan Model 10 Actuator
    You'd either have to totally remove the Model 10 actuator that you have and install a new one like the Titan # T4853100 or you'd have to come up with a way to lock the moving inner piece of your current coupler to the outer piece. Some do that by running a bolt through the two pieces or some will weld them.
    view full answer...
  • Is Mounting Hole Spacing The Same On T4079200 And T4853100 Trailer Couplers
    The mounting hole pattern is different on the # T4853100 coupler versus the pattern on the # T4079200 coupler. As you can see in the attached photos the bolt pattern is closer together on the side of the # T4079200 coupler than on the # T4853100. You may wind up with some of the mounting holes in the same place but you will need to drill new holes for some if not all of the holes. I have attached a link to a helpful article that explains what is needed to add electric drum brakes to...
    view full answer...
    Image 1 for Image 2 for
  • Can A 5 Bolt Trailer Coupler Be Installed Using 3 Bolts
    I did confirm with Titan that with this high of a capacity of coupler, the Titan Zinc-Plated Straight-Tongue Coupler # T4853100 will definitely require the use of all 5 bolts. They see commonly where holes are drilled to allow for all 5 bolts to be installed if need be. That being said the Buyers Products Straight Tongue Trailer Coupler # 3370091562 is also a suitable replacement designed to use 3 bolts and provides sufficient capacity for your trailer. I have included videos for both...
    view full answer...
  • How Many Bolts Should be Used When Installing the Titan Straight-Tongue Coupler # T4853100
    The Titan Straight-Tongue Coupler, part # T4853100, is designed for a 2-5/16 inch ball and a 3 inch wide trailer tongue. It has a weight capacity of 21,000 lbs. I spoke with my contact at Titan and he said that the coupler was tested with all five bolts installed. He also recommended to use grade 8 bolts. He said if you are going to be using this trailer coupler on any trailer of significant weight that he would strongly recommend to use all five bolts. The small investment in using all...
    view full answer...
  • How to Lock Out a Model 10 Actuator When Going to an Electric Over Hydraulic Setup
    I spoke to my contact at Titan and he informed me that there really isn't a simple way to lock out the sliding portion of the Model 10 actuators. You would have to either weld the two portions of the actuator together or drill holes through them and bolt the pieces together. If the actuator is bolted to your trailer the best solution would be to go with the coupler part # T4853100 as this has the same bolt pattern and is a standard coupler. The Model 20 and 60 couplers can be easily locked...
    view full answer...
  • Why Is There Slop In My Trailer Coupler When Mounted To the 2-5/16" Hitch Ball?
    If you have a lot of excess slop in your coupler then you will likely need to replace the coupler latch. A coupler latch like the one in the Repair Kit for Titan Couplers # T1848700 will wear down over time and will need replaced when it wears down. If you can identify what coupler you have I can help you find the correct repair kit for your Coupler. The White Grease Hitch Ball Lube # 58117 will help to prevent the coupler latch from wearing down as quickly and also reduce some of the...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Straight Tongue Trailer Coupler to Replace a Titan Model 10 Bolt-on Brake Actuator
    I agree, swiss cheese, while delicious, is not something you want your trailer frame to resemble. Too many holes in it could actually compromise the structural integrity of the frame. Take a look at Titan Zinc-Plated Straight-Tongue Coupler, # T4853100. This coupler has the same mounting pattern as current Titan model 10 and 20 actuators. I have included a link to a video review of the coupler for you.
    view full answer...
  • Can Surge Brake Trailer with Atwood Actuator be Converted to Electric Over Hydraulic
    You have the dreaded, no longer available Atwood surge coupler on your trailer. Since Atwood was bought out and the production was stopped on the actuators there are no replacement parts for your actuator. There's no easy way to lock that coupler out either. Best option would be to go with a tongue style coupler to replace what you have like the Titan part # T4853100. I attached a help article on converting a trailer to electric over hydraulic brakes for you to check out as well.
    view full answer...
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