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  1. Straight Tongue Trailer Coupler
  2. Dutton-Lainson
  3. 1-7/8 Inch Ball Coupler
  4. 3 Inch Channel
  5. Standard Coupler
  6. 2000 lbs GTW
Dutton-Lainson Trailer Coupler 1-7/8" Ball 3" Channel Tongue - 2,000 lbs

Dutton-Lainson Trailer Coupler 1-7/8" Ball 3" Channel Tongue - 2,000 lbs

Our Price: $25.18
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Straight Tongue Trailer Coupler
Orders above $99 qualify for Free Shipping
Shipping Weight: 3 lbs
DL13728 - 3 Inch Channel Dutton-Lainson Straight Tongue Trailer Coupler
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Straight-tongue coupler bolts onto your 3" wide trailer tongue. Pull trigger and lift up on the latch to open the ball socket. The tough zinc plating offers great rust resistance, making this coupler perfect for your boat trailer. Great Prices for the best straight tongue trailer coupler from Dutton-Lainson. Dutton-Lainson Trailer Coupler 1-7/8" Ball 3" Channel Tongue - 2,000 lbs part number DL13728 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (66)
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Dutton-Lainson Straight Tongue Trailer Coupler

  • 1-7/8 Inch Ball Coupler
  • 3 Inch Channel
  • Standard Coupler
  • 2000 lbs GTW
  • Bolt-On
  • Dutton-Lainson
  • Trigger Latch

Straight-tongue coupler bolts onto your 3" wide trailer tongue. Pull trigger and lift up on the latch to open the ball socket. The tough zinc plating offers great rust resistance, making this coupler perfect for your boat trailer.


  • Channel-tongue coupler lets you hook up your trailer to your tow vehicle
    • Provides connection point for hitch ball
  • Quick-Lock ball clamp assembly that can be adjusted without wrenches
    • Fits precisely on the hitch ball for a quiter, smoother ride quality when towing
  • Trigger action release allows fast, safe, and easy locking and unlocking
    • Pull trigger and lift up on latch to open ball socket
  • Sturdy zinc-plated steel construction
    • TUFFPLATE zinc finish is three times more resistant to corrosion than standard zinc coatings
  • Bolt-on installation
    • Hardware not included
  • Made in the USA


  • Ball size: 1-7/8"
  • Weight capacity: 2,000 lbs
  • Channel width: 3"
  • Overall dimensions: 9-1/2" long x 3-5/16" wide
  • Distance between the mounting holes (center to center): 3"
  • Mounting hole diameter: 9/16"
  • Pin hole diameter: 5/16"
    • Minimum span needed for pin or pin lock: 5/16"

Dutton-Lainson 13702 Trailer Coupler 1-7/8" Ball 3" Channel Tongue - 2,000 lbs - Model 970

Replaces # CP01-030

Item # DL13728

Customer Satisfaction Score:

Customer Reviews

Dutton-Lainson Trailer Coupler 1-7/8" Ball 3" Channel Tongue - 2,000 lbs - DL13728

Average Customer Rating:  4.8 out of 5 stars   (66 Customer Reviews)

Straight-tongue coupler bolts onto your 3" wide trailer tongue. Pull trigger and lift up on the latch to open the ball socket. The tough zinc plating offers great rust resistance, making this coupler perfect for your boat trailer.


I couldn't find a 1-7/8" coupler with a 3" channel anywhere locally; so, I decided to order one from etrailer. I'm very pleased with the product. It fits like a glove and works great. I was also impressed with etrailer's fast shipping. I will definitely order from them again.


Nice product. Sturdier then previous coupler I removed. Easy to use safety latch.
Easy to install. Arrived quickly.


Great product! Still like it well. You all sell good stuff.
Jeff S - 02/26/2018


Great hitch very well made highly recom mended


What impressed me that this part fit exactly on my trailer that is over 40 years old. It showed up on time and it was the same price it would have cost locally--if they had it--which they didn't.

Pictured--old new.


Item arrived perfect and dimensions matched specs.


Was wider than my trailer neck so had to put 4 large washers in to get the right fit - sent the 1st one back and of 49 somes dollars payed for it got 5 dollars back


Hard to find 3" bolt pattern in 1-7/8" ball coupler... found it at etrailer with help of customer service... good price, fast shipping and made in USA.

No complaints...Two things I LOVE about it: First, it had the bolt pattern I needed without modification and second, it has a heavier construction than the others I looked at that I would have had to modify. Im very pleased with this purchase!
D.M. - 03/17/2016


It was easy to install and it fit my 1 7/8 ball on my 2000 Camry so I could tow my 16' Bayliner Bowrider.

It still works well after a year. Use aluminum or copper thread compound on the bolt threads so you can remove it in the future.
Peter S - 03/06/2018


I am in the process of replacing the tongue on my lightweight utility trailer and decided to install a new hitch at the same time. etrailer provided the best selection including various quality upgrades for the particular hitch style I needed. In addition, the prices were also very competitive, if not the best. My purchase arrived exactly on time and in excellent shape. I'll be returning to etrailer fro my other trailering needs.


Product was exactly as described. With some slight modifications to the tongue on my Brinly dump trailer, I now have a trailer I can hook to my X300 John Deere lawn tractor using a 1 7/8 trailer hitch ball. Love it. No more getting down on the ground to insert a hitch pin and cotter pin.


Nice coupler, easy install. Quick shipping from etrailer.
The only reason I'm giving it 4 starts instead of 5, is it didn't come with new bolts. Not really an issue, just assumed they would be included.
Overall, pleased with product.


Here's the new one installed. Absolutely perfect. Thank you.


I purchased from the website here because they provided a great description of the coupler and I knew it would line up with the holes in my trailer tongue. Too many other sites did not provide enough information but had all the specs I needed to make an informed decision.


Just what I ordered also came in on time as paid for, thanks for the excellent service.


It's exactly what I ordered and fit per fectly.


I received my trailer coupler in a timely manner with no damage to the product, now I just have to figure out how I am going to mount it for the tongue of my pull behind trailer is pretty close to the same size of the channel of the coupler.


Good piece and fit perfectly on my small craftsman lawn tractor trailer. The coupler slid right into the channel and I used the existing hole on top to bolt it into place.


It was exactly what we needed. I will order again when I need parts.

Does the Job, Perfectly!
SteveD - 04/09/2017


The hitch is exactly what I was looking for and it was delivered right when it was scheduled. Best of all it was made in the USA.


fit very well, has held up so far.


I got this to replace the old one on my motorcycle trailer that had gotten hard to operate. The old one must have been the same unit as the new one fit perfectly.


When ever I shop for trailer parts etc. I always come back to you folks. Your products are easy to find, a great selection at the right price. Very satisfied customer here in Va. Thanks, H.K.


Shiny! But seriously, it fit and worked perfectly. I was so happy to get rid of that old, rusty, beat up thing that was on there. I did learn how to adjust the coupler to fit the ball properly. Very happy with it.


Very satisfied with this trailer coupler. It replaced my old rusty one perfectly, and I'm impressed with the quality. Very easy to install.


Excellent! I was not sure this product would fit well because the trailer is old, but it was prefect!

Show More Reviews

See what our Experts say about this Dutton-Lainson Straight Tongue Trailer Coupler

  • Can Dutton Lainson Coupler DL13728 Fit on Trailer Tongue that is 75 mm Wide
    Your tongue has a width of 75 mm or 2.95 inches which is very close to the standard tongue width couplers are designed for of 3 inches. That would be close enough for the Trailer Coupler # DL13728 that you referenced to tighten onto and work well. Basically I'd mock up the coupler installed on your tongue where you want it and then drill holes using the coupler as a template.
    view full answer...
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  • Size and Type of Bolts to Install Trailer Coupler DL13728, 1-7/8 Inch Ball, 3 Inch Channel Tongue
    I spoke with my contact at Dutton-Lainson, the manufacturer, about the hardware requirements for Coupler # DL13728. She told me that to mount the coupler, you will need two, 1/2 inch bolts, that are 3-1/2 to 3-3/4 inches long. With this type of hardware installed, the coupler will be installed properly, according to manufacturer recommendations.
    view full answer...
  • Does Trailer Coupler Need to Sit Flat Against the Top of Trailer Tongue
    Ideally, you want the coupler sitting flat in direct contact with the top of the trailer tongue. If the gap between the bottom inside of the coupler and the trailer tongue is pretty minimal, say 1/16 of an inch or less, having it the way it is would most likely not cause a problem, but I would recommend you go ahead and fix it. This can be done in two ways. You can remove the coupler, cut about 1 to 1-1/2 inches off the end of the trailer tongue so you have fresh steel to work with and...
    view full answer...
  • Dutton-Lainson Straight Tongue Trailer Coupler 940-1 Repair Kit
    Why not just use the repair kit part # DL13968 to replace the internal components of your Dutton Lainson Coupler 940-1 so that you wouldn't have to mess with cutting or replacing components. This would be the easiest solution to the problem you have.
    view full answer...
  • Is There a Straight Tongue Trailer Coupler With Built-In Handle for Easy Maneuvering
    I have just what you need. The Trailer Coupler 1-7/8" Ball 3" Channel Tongue part # DL13728 which you could add the Trailer Coupler Grip Handle by Dutton-Lainson part # DL13350 to in order to help maneuver the trailer. I am not aware of any one piece coupler/handle combo but the above will work perfectly for you.
    view full answer...
  • Straight Tongue Coupler for 3 inch Channel for 2 inch Hitch Ball
    You certainly can go to a coupler that uses a 2 inch ball like you mentioned. For that we have the Dutton Lainson # DL13897 which fits the 3 inch channel you have as well.
    view full answer...
  • Replacement Coupler Repair Kit For Dutton Clausen Trailer Coupler
    The Coupler Repair Kit for 2" Curt Couplers # C25194 might fit your Dutton Clausen coupler, however I can't confirm that it will or will not fit. We don't have your coupler to compare and test fit. Due to the age of your coupler, I also cannot confirm that the Repair Kit for Dutton-Lainson Class II and III Couplers # DL13970 will fit. My recommendation is to replace your old coupler with the Trailer Coupler 1-7/8" Ball 3" Channel Tongue (2,000 lbs.) by Dutton-Lainson # DL13728. This...
    view full answer...
  • Does The Dutton-Lainson Trailer Coupler # DL13728 Come With a Coupler Pin and Chain?
    We have the Dutton-Lainson Coupler Repair Kit # DL13968 that includes the chain and pin that will fit the Dutton-Lainson Trailer Coupler # DL13728. You can remove the chain and pin while holding onto the other parts in the event you need to replace the coupler latch. Personally I am not a big fan of that type of pin as it can fall out as it wears down over time. I recommend the Master Lock Hitch Receiver and Coupler Latch Lock Set # 2848DAT as it allows you to secure your trailer to your...
    view full answer...
  • What is the Distance Between Bolt Holes on 1-7/8
    From center to center, the distance between the two side bolt holes on # CT-2003-Z is 2-1/4". On # DL13728 the distance is 3". Both trailer couplers fit a 3" channel tongue, a 1-7/8" ball and are rated at 2,000 lbs. If you are replacing your coupler, it may also be time to replace your coupler lock. I recommend the Coupler Lock, # e98893, which works with 1-7/8" couplers.
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • 2k Rated Trailer Coupler Recommendation for 3 inch Wide Frame Channel
    We have several 3 inch channel trailer couplers that could work for you (see link). For a 2,000 lb capacity coupler the Dutton Lainson part # DL13728 is a very popular option that would work well. I would have a qualified weldor, weld a Safety Chain Loop, # E950, to the bottom of the trailer frame and then attach safety chains, like part # 2118-348-04, with Safety Chain Quick Links, # 2114-553-04.
    view full answer...
  • Trailer Coupler Repair Part Recommendations
    In order to find the right coupler or latch for your trailer you will need to know the size of your trailer tongue or the model of the coupler needing the parts. If you have a Fulton 308 Series coupler on your trailer, then the Fulton Repair kit, part # F520801, will work for you. I have attached a link to the product page that lists the coupler repair kits and parts you can take a look at. If you are looking to replace the entire coupler, the size of the trailer channel and the ball...
    view full answer...
  • Trailer Coupler for a Trailer with a Round Tube Straight Tongue
    We have a few different round tube mount couplers that might work for you. If the tube has a 1-3/4 inch diameter we have 4 options: # BD028381 is rated for 7,000 pounds and fits a 2 inch ball # BD028242 is rated for 5,000 pounds and fits a 2 inch ball # BD028442 is rated for 12,500 pounds and fits a 2-5/16 inch ball # BD028461 is rated for 12,500 pounds, fits a 2-5/16 inch ball, and has a high-profile latch And we have one option if the tube is 3-1/2 inches in diameter. It is # BD028383...
    view full answer...

Do you have a question about this Straight Tongue Trailer Coupler?

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Noah M
Updated by:
Noah M

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