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  1. Straight Tongue Trailer Coupler
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  3. 2 Inch Ball Coupler
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Channel Tongue Trailer Coupler - Trigger Latch - Zinc - 2" Ball - Bolt On - 5,000 lbs
etrailer

Channel Tongue Trailer Coupler - Trigger Latch - Zinc - 2" Ball - Bolt On - 5,000 lbs

Part Number: CT-5003-Z
In Stock
$38.36
Straight Tongue Trailer Coupler
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Straight-tongue coupler bolts onto your 3" wide trailer tongue. Pull trigger and pull up on the latch to open the ball socket. The durable zinc offers superior rust resistance, making it perfect for boat trailers and similar applications. Great Prices for the best straight tongue trailer coupler from etrailer. Channel Tongue Trailer Coupler - Trigger Latch - Zinc - 2" Ball - Bolt On - 5,000 lbs part number CT-5003-Z can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (945)
  • Q & A (0)
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etrailer Straight Tongue Trailer Coupler - CT-5003-Z

  • 2 Inch Ball Coupler
  • 3 Inch Channel
  • Standard Coupler
  • Bolt-On
  • 5000 lbs GTW
  • Marine Grade
  • Trigger Latch
  • 2-Bolt
  • etrailer

Straight-tongue coupler bolts onto your 3" wide trailer tongue. Pull trigger and pull up on the latch to open the ball socket. The durable zinc offers superior rust resistance, making it perfect for boat trailers and similar applications.


Features:

  • Channel-tongue coupler lets you hook up your trailer to your tow vehicle
    • Provides connection point for hitch ball
  • Trigger latch allows for safe and easy coupling and uncoupling
    • Pull trigger and pull up on latch to open ball socket
  • Sturdy steel construction
  • Durable zinc finish provides superior corrosion resistance
  • SAE J684 certified
  • Bolt-on installation
    • Hardware not included


Specs:

  • Ball size: 2"
  • Channel width: 3"
  • Overall dimensions: 10-3/4" long x 4-1/2" wide
  • Pin hole diameter: 5/16"
    • Minimum span needed for pin or pin lock: 5/8"
  • Weight capacity: 5,000 lbs
  • 1-Year warranty


CT-5003-Z Ram Straight Channel Tongue Trailer Coupler - Trigger Latch - 2" Ball - Zinc - 5,000 lbs

Similar to Fulton F343000301





Customer Satisfaction Score:

Ratings & Reviews

4.8

945 reviews
5 Stars
(823)
4 Stars
(87)
3 Stars
(17)
2 Stars
(8)
1 Star
(10)
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by:
I’m a long time customer here and I know I can expect great quality. As far as I’ve seen, you don’t sell something you don’t like.
This trailer coupler is no different. It’s a really nice piece.
I also appreciate your videos to help with purchase and installation.
Thanks a lot!
Lazer S. profile picture
Etrailer Expert

Lazer S.

10/21/2025

Glad you like it, Mark! I hope we continue to live up to, and maybe even exceed, expectations! : ) Did you install this on a kayak trailer, by chance?

by:
Exactly what I needed to replace the old coupler on my boat trailer. Thank you the extra attention.
by:
Coupler was exactly as described. Dimensions were right on the money. Construction is more than adequate for my application (5000 pound load rating).
by:
Seems to work fine, coupled this with a latch lock and it feels pretty secure
Russell profile picture

Russell

3/10/2026

Works perfectly for me , after a year I still like it!

by:
Arrived on time and was sent out right away. Good quality product would buy again when needed
by:
This is a very good trailer coupler. This works and releases very easy unlike some of the other cheaper stores couplers
by:
Had to replace the existing coupling on my boat trailer due to some previous damage and age. Purchased the CT-5003 Coupler from etrailer.com. The new one fit great and seems to be just as good if not better then the original. Was picked and shipped the same day and arrived in just 3 days and it was ordered on a Saturday. Haven't actually hooked it up to the truck and pulled the boat to the water yet but seems it should do fine.
Tc profile picture

Tc

8/16/2025

Worked just as it should after one year. Have pulled the boat numerous times. This boat and trailer weight about 3500 lbs and the coupling shows no signs of premature wear.

by:
Exactly what I wanted. Shipping was great
by:
PERFECT TRAILER HITCH REPLACEMENT FIT & EASY TO INSTALL!!! EXCELLENT CUSTOMER SERVICE AS WELL!!! THE HUBBY WAS IMPRESSED WITH THE QUALITY & EASE OF ORDERING!!! DEFINITELY WILL BE OUR GO TO TRAILER PART PLACE & YOU WILL NOT BE DISAPPOINTED EITHER!!!
by:
Perfect form and fit.
by:
Damaged when shed roof fell in during ice storm coupler & jack was damaged on my log splitter. Thanks again for great service.
by:
Great product for the price. Fit right over the 3 inch trailer tongue. The only difference between this coupler and the original is that this coupler sits about one quarter inch high on the tongue, where the original sat flat on top of the tongue.
by:
Thank you Andy for the order you are very helpful I appreciate it what
by:
you guys are so fast , it's amazing.... Thanks
by:
very nice piece-worked great and looks good also
by:
Works as it should. Just like advertised
by:
This is not a direct replacement. does not sit flat on 3 inch channel on a Load Rite trailer. If you bolt it on the coupler sits about 1/2 inch above the channel.
by:
We have used these couplers for years, with nothing negative to say about them. They perform really well, and etrailer is really Johnny-on-the-spot with the speed of their filling their orders.
by:
Fits perfect. Good quality. Customer service was excellent
by:
Fit perfect!
by:
Item was as described and arrived timely, installed with bolts and welding
by:
Fast delivery, perfect fit.
by:
Item arrived fast and is what I ordered.

UPS seemed to have curb stomped, driven over the package or both.

Fortunately the hitch is build rock solid and survived the abuse unharmed.
by:
Works great. Good fit.
by:
Finally finished the project e trailers made it easy . Started with a bare frame and put on new axle springs tires and bunks, rollers and winch.
Can’t want to hit the water
25
945
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See what our Experts say about this etrailer Straight Tongue Trailer Coupler

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    I recommend etrailer.com Channel Tongue Coupler part # CT-5003-Z to replace the Shelby 5135 coupler. The etrailer.com coupler has a channel width of 3" and takes a 2" ball. It also has 3" from center of bolt hole to center of bolt hole which are the dimensions of your Shelby coupler.
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    Hey Mike, thanks for reaching out. Sounds like you are needing a latch repair kit for a Fulton coupler. Unfortunately, we no longer offer any replacement parts or repair kits for these. If your coupler is in need of a new latch, your best option will be to replace the coupler entirely. The Channel Tongue Trailer Coupler # CT-5003-Z is a great option for replacing a standard 2" ball coupler. It will fit a standard 3" tongue and has a standard 3" bolt hole spacing. This is what I recommend...
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    Hey David. Is there a brand or part number stamped anywhere on that older actuator? If so, we can narrow down how to lock it out manually as most have that feature. That said, the best and safest option is to just replace the old one with a new standard non-surge actuator since you already converted the brakes to electric. You'll need to cut off the old one and weld a new one on. You'll want to measure how wide that one is, or in other words, how wide the channel is where the coupler...
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    A replacement for your Shelby 5138 is the Fulton Fas-Lok Coupler, 2" Ball, 3" Channel - 3,500 lbs # F223000301. This is a great quality coupler that is cost effective as you referenced. I've attached a review video of this product to assist. If you are wanting a stronger coupler at a great cost, I recommend the Channel Tongue Trailer Coupler - Trigger Latch - Zinc - 2" Ball - Bolt On - 5,000 lbs # CT-5003-Z. This is a quality product at a very low cost that I highly recommend.
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Info for this part was:

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