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Replacement Head Unit for Curt A20 5th Wheel Trailer Hitch - 20,000 lbs

Replacement Head Unit for Curt A20 5th Wheel Trailer Hitch - 20,000 lbs

Item # C16540
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Our Price: $414.95
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Shipping Weight: 104 lbs
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Replacement head unit fits Curt A20 fifth-wheel trailer hitches. Call 800-298-8924 to order Curt accessories and parts part number C16540 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Replacement Head Unit for Curt A20 5th Wheel Trailer Hitch - 20,000 lbs. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (7)
  • Q & A (23)
  • Videos (1)
  • Photos
  • Why etrailer?

Curt Accessories and Parts - C16540

  • Fifth Wheel Hitch
  • Head
  • Curt
  • Head Assembly

Replacement head unit fits Curt A20 fifth-wheel trailer hitches.


  • Replaces head unit on your Curt A20 5th-wheel trailer hitch
  • Provides 360-degree jaw-to-king-pin contact with interlocking dual jaw
  • Ensures secure towing with 3-point, color-coded lock indicator system
  • Fully articulates for controlled coupling and a stable, quiet ride
  • Removes quickly and easily with 1 pin
  • Lockable handle lets you easily secure trailer to hitch with padlock (sold separately)
  • 2 Built-in zerk fittings for easy lubrication
  • Included plastic lube plate lets king pin glide smoothly into hitch during hookup
  • Constructed of sturdy steel with durable, carbide powder coat finish


  • Application: Curt A20 5th-wheel trailer hitch (C16140)
  • Gross towing weight: 20,000 lbs
  • Vertical load limit: 5,000 lbs

16540 Curt A20 Fifth-Wheel-Trailer Hitch Head Unit

Video of Replacement Head Unit for Curt A20 5th Wheel Trailer Hitch - 20,000 lbs

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

Video Transcript for Curt Fifth Wheel C16540 Review

Today we're going to take a look at the replacement head unit for the Curt A20 5th wheel trailer hitch, has a 20,000 pound weight capacity. Now, this will replace the head unit on your Curt A20 5th wheel trailer hitch. Has the interlocking 2-jaw system on it, provides a nice 360-degree jaw-to-king-pin contact, because of that it'll give you less rattle, more security than the slide bar models. Do you notice on the very front over here and right over here on the front of the jaws they do have built-in grease cert fittings for easy lubrication of the jaws. The head on this is a fully-articulating torsion head, gives you controlled coupling and a nice, stable, quiet ride. It will self-align for easy hook up. Also, will suppress road shock which reduces that bothersome towing noise. The handle right here is a lockable handle.

It's a short-throw, single-handle operation. Nice thing on this handle, it does self reset to the ready-to-couple position after uncoupling. The very back of the head, right under the head, they actually use a 3-point indicator system and it is color coded because it'll tell you if the hitch is ready to uncouple, couple, or tow, by showing you a certain color. What's nice is those lock indicators are visible from the cab of your truck, so when you're turning around hooking up, if you see what color is showing it tells you the position of the jaws. Right now it's showing green, that means your jaws are locked closed, it's safe to tow. If you'd open then up then it'd show yellow, that means the jaws are ready to couple, it's safe to back your truck in to couple up to your 5th wheel trailer.

If it shows red, that means the jaws are locked open, it's safe to pull the truck away but you do not want to couple when it's showing red. Also, it's a fast 1-pin head removal right here. If you pull this clip out, slide this large pin out, it allows you to take the head out from the cross member so it makes it easy for one person to remove the hitch from the vehicle. It does come with everything shown here. It includes this plastic lube plate that goes on your king pin and it lets that king pin glide smoothly into the hitch during hookup. Also comes with the mounting hardware to attach this to the legs. This is constructed of a nice, sturdy steel, has a durable carbide powder coat finish to it. The application, this is for the Curt A20 5th wheel trailer hitch, which is part number C16140.

Gross towing weight on this is 20,000 pounds. Vertical load limit is 5,000 pounds. I just want to demonstrate how those jaws work on the hitch. What you want to do first is take your pinning clip off and that'll unlock the handle. As we had mentioned, it's a short-throw single-handle, you just pull it out a little bit, rotate it back, and you can see the jaws pop open. I happen to have an example here of a king pin, what would be on your 5th wheel.

Basically when you go to hookup . When this is open now if you look back here it would show yellow, which means you're ready to couple. Then you're hooking up, your king pin would slide right in. You can see once it slides in far enough the jaws will fully wrap around the king pin to hold it into place. Your handle slides all the way up into the locked position. The holes line up here so it allows you to drop the pin right through there. Then clip it and it locks the handle into place and you're all ready to tow. Then, when you're going to uncouple the same thing, you just reverse it. Open it up, it'll remove the king pin from the jaws. That should do it for the review on the replacement head unit for the Curt A20 5th wheel trailer hitch with a 20,000 pound weight capacity.

Customer Reviews

Replacement Head Unit for Curt A20 5th Wheel Trailer Hitch - 20,000 lbs - C16540

Average Customer Rating:  5.0 out of 5 stars   (7 Customer Reviews)

Replacement head unit fits Curt A20 fifth-wheel trailer hitches.

- C16540

Customer service with this company is excellent if you have a problem. If you have a problem with their product they will go to great length to solve it for you 799384

- C16540

Great price, great product , fast shipping and fabulous service! Very simple to assemble and install. 749887

- C16540

Legs and 5th wheel head purchased separately fit my new 2020 Sierra 2500 HD perfectly. Directions to assemble were easy to follow. Thank you etrailer 729755

- C16540

Great replacement hitch head. 713317

- C16540

Purchased this to replace and older one. Curt Products are the best and eTrailer has the best prices on the whole internet. Fast delivery and never had any problems with shipping. We purchase all of our camper needs from them exclusively. Check them out you can't go wrong. 615797

- C16540

This hitch was very easy to install. It did come missing one of the bolts to attach the head to the base. I contacted George at etrailer customer service and he sent the replacement bolt out ASAP and I got it in just a couple of days. Got the hitch completely installed and it seems to operate just fine. Haven't towed with it yet but it functions fine. I highly recommend etrailer.com for their outstanding customer service. 466579

- C16540

Received my Curt A20 Fifth Wheel Head, but have not had a chance to try it out yet. I am very pleased with the quality of its' components and from what I read of the reviews, most had nothing but praise for this F.W. Hitch. etrailer has a great product at a great price and the shipping was free. Thanks. 331942


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Info for this part was:

Edited by:
Lindsey S
Installed by:
Jeff D
Expert Research:
Jameson C
Written by:
Chelsea B
Updated by:
Amanda M
Updated by:
Kristina F
Updated by:
Isabelle B

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