bing tracking image
  1. Straight Tongue Trailer Coupler
  2. etrailer
  3. 2 Inch Ball Coupler
  4. 3 Inch Channel
  5. Standard Coupler
  6. 5000 lbs GTW
Channel Tongue Trailer Coupler - Trigger Latch - Zinc - 2" Ball - Bolt On - 5,000 lbs

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

Item # CT-5003-Z
lowest price pledge
Our Price: $25.00
You Save: 20%
Straight Tongue Trailer Coupler
Orders above $99 qualify for Free Shipping
Shipping Weight: 5 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
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. Lowest 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 or call 1-636-306-4830 for expert service.
  • All Info
  • Reviews (86)
  • Q & A (0)
  • Photos
  • Why etrailer?

etrailer Straight Tongue Trailer Coupler - CT-5003-Z

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

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.


  • 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


  • 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

Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (86 Customer Reviews)

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 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.


This product works, but is aggravating. Toys is one of them couplers that you have to reach under to open up so it will go onto the 2" ball. Then it takes some wiggling of the lever to get it to latch. Lastly, the hole to put your pin or lock does not line up asks you have to mess with that to get the lock on. Wish I had spent a few more dollars for a better coupler.


The product is great. The only negative was the normal shipping time. It took two weeks for it to arrive.




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


Fits my trailer very well I am a little concerned it will rust with the zinc coating and it is made in china makes me a little scared

Hi Todd, Thank you for your review! The Zinc coating on this trailer coupler is standard for trailer use. It provides a reliable and durable protection to the steel helping prevent rust and corrosion. This trailer coupler has been tested and verified to be used for 5k pound loads.
-- Etrailer Expert Tyler M - 12/16/2020
1 of the worse couplers I have bought
Todd S - 12/05/2021


perfect replacement for and original 2005 model, no new holes drilled


Got parts in 2 days. Excellent quality. Grat pricing


satisfied customer, thans, good job to etrailer workers

as expected, no issues, good product
Angeles C - 06/30/2021


Works as expected. Shipped in a timely manner. Reasonably priced. Replaced malfunctioning unit on trailer. Easy to install. Would buy again if needed.


All the products I have purchased from Etrailer have been good. Quailty, durable products, fast shipping and easy transactions. has pretty much any product you need for your trailers. Thank you Etrailer!


A bone this product for one year, I do not have to fight to attach it to my hitch.

It works well.


A perfect replacement for my Triton boat trailer coupler. Fast and easy!


Worked perfect as expected


product has performed as expected, and has shown no signs of wear...very happy with purchase...etrailer is an excellent company with unrivaled customer service...




The parts I ordered arrived in 4 days even though I used the cheapest rate. All components were the best quality and the prices were great.
I have ordered from before with the same result and will do so again.


etrailer employees were very professional and helpful for my return and ordering the correct part i needed for my trailer. I received my new part on record time.


Perfect fitting part. Easy to install.


Great buy…… easy to install and has worked very much as expected


Good product, exactly as described, fast shipping, always enjoy buying from etrailer.


I wish I would have known it was a imported product.Seems ok. I would sooner buy made in USA.


They shipped quickly and great product. Any issues with part just call them they will make it right . No questions asked. Good people..


Bolted right on. Good for my small boat trailer.


Well made, good galvanizing. Fit snugly on the trailer tongue,

Show More Reviews

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

  • Bolt Size Recommended For Channel Style Tongue Trailer Coupler Installation
    To mount the Channel Tongue Trailer Coupler - Trigger Latch - Bolt On # CT-5003-Z, I recommend using 1/2 inch bolts. The higher the grade, the stronger the bolt. I've attached the review video to help as you plan this installation.
    view full answer...
  • Replacement For Shelby 5135 Coupler With 3 Channel
    I recommend Channel Tongue Coupler part # CT-5003-Z to replace the Shelby 5135 coupler. The 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.
    view full answer...
    Image 1 for
  • Bolt Hole Distance on Trailer Coupler
    The mounting holes of the trailer coupler are spaced 3-1/16 inches apart on center. The holes themselves are a 1/2 inch in diameter.
    view full answer...
    Image 1 for
  • Mounting Hole Distance to Bottom of Channel for Channel Tongue Trailer Coupler
    Yes, the mounting holes for the Channel Tongue Trailer Coupler # CT-5003-Z measure 1" from the center down to the bottom of the channel.
    view full answer...
    Image 1 for
  • How To Determine Axle Weight Capacity For A Fish House Trailer
    If you have a single axle trailer with a 3,500-lb axle then your total weight capacity is 3,500-lbs with each wheel bearing 1,750-lbs. There should be a sticker or plate somewhere on the frame near the front of the trailer that lists the official capacity. You should also find a sticker/label on the axle tube that gives axle capacity. Also, the trailer can only be rated as high as the lowest rated component. For example, if you have a coupler that is rated for 5,000-lbs like Item # CT-5003-Z...
    view full answer...
  • Replacement Coupler Recommendation for Shelby 5135
    The Channel Tongue Coupler part # CT-5003-Z will work great for your situation. It fits the 3 inch channel you have, has more than enough weight capacity at 5,000 lbs trailer weight, and fits a 2 inch hitch ball. Since you have to drill your trailer tongue either way you could just drill it to the same specs as this coupler and you'd be set.
    view full answer...
  • Recommended Repair Kit for Shelby 5136 Coupler
    I have a solution for you, but there is not a repair kit available for the Shelby 5136 coupler. However you can replace the coupler, and I recommend using the Channel Tongue Trailer Coupler - Trigger Latch - Zinc - 2" Ball - Bolt On - 5,000 lbs # CT-5003-Z to do so. This will bolt on to a 3 inch channel tongue and fits a 2 inch hitch ball, so it will fit in place of your older Shelby 5136 coupler. I've also linked a short review video of this coupler for you to check out, but replacing...
    view full answer...
  • Replacement Coupler Solution for Shelby 5135
    Since Shelby couplers aren't available you would need to buy an all new coupler like with the part # CT-5003-Z that you mentioned. This fits 3 inch channel like what you have and also is designed for the same 2 inch hitch ball size.
    view full answer...
  • Inner Channel Dimensions Of Channel Tongue Trailer Coupler # CT-5003-Z
    The inner dimensions of the Channel Tongue Trailer Coupler # CT-5003-Z are 5" from the bend to the rear of the coupler, 3-1/6" wide and 2-1/8" tall. I have created a diagram with these measurements below.
    view full answer...
    Image 1 for
  • Solution for Installing Higher Capacity Coupler on 2 inch Trailer Tongue
    Your best solution will be to use a coupler designed for a 3 inch channel and then have 1/2 inch spacers attached to either side of your 2 inch channel so that a coupler like part # CT-5003-Z will fit and secure properly.
    view full answer...
  • Does Dutton-Lainson Trailer Coupler DL13897 Come with a Pin and Chain
    Based on the model information from Dutton-Lainson coupler # DL13897 would have that pin and chain. For a similar model that does not have the pin and chain but is still rated the same and also fits a 2 inch ball and 3 inch tongue use # CT-5003-Z. I have linked a video review of this coupler for you.
    view full answer...
  • Replacement Cost Efficient Coupler for Shelby 5138
    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.
    view full answer...
    Image 1 for
  • Repair Kit Availability for Shelby 5135 2 inch Coupler
    I do have a solution for you but unfortunately, the CA-5100-RK isn't compatible with your Shelby 5135 coupler. While there isn't a repair kit available for your coupler, replacing the entire unit is just as cost effective. For a very similar replacement, I recommend the Channel Tongue Trailer Coupler # CT-5003-Z. This takes a 2 inch ball, is rated for 5,000 lbs and fits a 3 inch wide channel just like your Shelby coupler. I've attached a photo showing the mounting hole distance...
    view full answer...
    Image 1 for
  • Can Flat Bed Directly Tow with Bumper
    In your photo it looks like there could be a hitch ball hole in the cross brace on the back of your Chevy flatbed. If you can find a sticker or plate that indicates a tow rating, and a hitch ball of the appropriate rating and with the shank diameter to fit correctly, then you can tow. It also looks like there is not a lot of clearance for the trailer coupler, due to the vertical support near that hole. A coupler like # CT-5003-Z has a flat lip around the ball cup and this may contact...
    view full answer...
    Image 1 for
  • Coupler to Replace Shorelandr 3310010
    While we don't have the exact Shoreland'r coupler you are looking for we can help since I was able to determine that the coupler is for a 2 inch ball, has a 3,500 lb towing capacity, and fits a 3 inch channel. So you could use the # CT-5003-Z which covers all of that. Then for safety chains you could use the part # TCTSCG30-730-04x1 which is sold individually and you'd be set.
    view full answer...
  • Actuator Needed to Use Demco Manual Reverse Lockout Kit For Hydraulic Brake Actuators
    No; the Demco Hydraulic Trailer Brake Actuator # DM72VR is designed for use with free-backing brake systems and does not have a lockout feature- so you wouldn't be able to use the Manual Reverse Lockout Kit # DM5939 with that actuator. To use the Manual Reverse Lockout Kit you would need an actuator like the Demco Hydraulic Brake Actuator w/Manual Lockout # DM8760011 . This kit requires 1/2" x 4-1/2" Grade 5 bolts (not included) for mounting as well as a coupler similar to # CT-5003-Z...
    view full answer...
  • Recommendation for Most Secure Trailer Coupler Lock
    The more secure coupler locks we offer are designed for be used when the trailer isn't hitched to the vehicle. They're designed to prevent the coupler from being hitched to a trailer ball, like # FA86-0015-305. With the trailer attached to the ball, you'd want to use something that would prevent the latch mechanism of the coupler from being opened, as well as securing the ball mount into the hitch receiver using something like the # BD580402 hitch lock you'd looked at. The latch locks...
    view full answer...

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

  • Why

    At we guarantee:
  • Highest quality straight tongue trailer coupler for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate straight tongue trailer coupler information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Cole B
Installed by:
Cole B
Employee Brent H
Installed by:
Brent H
Employee Wilson B
Updated by:
Wilson B
Employee Ronnie R
Updated by:
Ronnie R
Employee Mike S
Updated by:
Mike S
Employee Amanda M
Written by:
Amanda M

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.