What Is The Difference Between Curt Double Lock C60712 And Curt EZr Double Lock C619-648
Updated 04/08/2026 | Published 04/04/2026
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Question:
I currently have a set up similar to a curt 16055 and my camper and horse trailer set high in the front so was considering an under the bed flip over. Do you have measurements of something like that. I can always measure my current set up if you knew what the height was of the flip over. Next question what is the difference between C60712 and C619-648?
asked by: Justin B
Expert Reply:
Hey Justin, thanks for reaching out, and good question.
The Curt Double Lock # C60712 and Curt EZr Double Lock # C619-648 are extremely similar. The # C60607 Double Lock is the older, more traditional design. It still uses the same double-lock ball system and has the same 30K rating, but the install is a little more hands-on. You’re doing more measuring, more positioning, and it’s generally more of a two-person job to get it lined up and bolted in clean. It’s solid and proven, just not as installer-friendly.
The # C619-648 EZr is basically the updated version of that same hitch. Same capacity, same double-lock style, same end result when you’re towing. The difference is it’s built to be easier to install and work with. It uses things like a center locator so you don’t have to measure your bed cutout, more one-wrench hardware, and it’s designed so one person can realistically install it without fighting it.
Both will fit a 2003 GMC Sierra and both will sit at the same height above the bed. I've attached a picture with the ball dimensions for your reference.
If you plan to install yourself at home I'd lean towards the EZr. If you'll be taking it to a shop, the # C60607 Double Lock will do fine.
Were you thinking of DIYing it? What kind of trailer will you be hauling?
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Product Page this Question was Asked From
Curt Double Lock, Flip and Store Underbed Gooseneck Hitch w/ Installation Kit - 30,000 lbs
- Gooseneck Hitch
- Below the Bed
- Flip-Over Ball
- 7500 lbs TW
- 30000 lbs GTW
- Wheel Well Release
- Spring-Loaded Loop
- CURT
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