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Roller Shaft with Pal Nuts for Boat Trailer Rollers - Zinc-Plated Steel - 5-1/4" x 5/8"

Roller Shaft with Pal Nuts for Boat Trailer Rollers - Zinc-Plated Steel - 5-1/4" x 5/8"

Item # CE10721A
Our Price: $7.21
Boat Trailer Parts
Shipping Weight: 0.59 lbs
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5-1/4" Long x 5/8" diameter steel shaft for 4" rollers replaces a worn-out roller shaft on your boat trailer. Includes 2 pal nuts for mounting. 1-800-940-8924 to order CE Smith boat trailer parts part number CE10721A or order online at Free expert support on all CE Smith products. Great prices and Fastest Shipping for Roller Shaft with Pal Nuts for Boat Trailer Rollers - Zinc-Plated Steel - 5-1/4" x 5/8". Boat Trailer Parts reviews from real customers.
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CE Smith Boat Trailer Parts - CE10721A

  • Rollers
  • Roller Shafts
  • 5/8 Inch Diameter
  • 5-1/4 Inch Long
  • Zinc-Plated Steel
  • CE Smith

5-1/4" Long x 5/8" diameter steel shaft for 4" rollers replaces a worn-out roller shaft on your boat trailer. Includes 2 pal nuts for mounting.


  • Roller shaft accommodates a roller on your boat trailer
  • Constructed of sturdy, zinc-plated steel
  • Attaches with 2 end cap nuts (included)
  • Made in the USA


  • Application: 4" rollers
  • Quantity: 1 shaft and 2 pal nuts
  • Shaft length: 5-1/4"
  • Diameter: 5/8"

10721A Zinc-Plated Steel Replacement Roller Shaft with End Cap Nuts by CE Smith - 5-1/4" Long x 5/8" Diameter

Video of Roller Shaft with Pal Nuts for Boat Trailer Rollers - Zinc-Plated Steel - 5-1/4" x 5/8"

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

Video Transcript for CE Smith Boat Trailer Roller Shaft with Pal Nuts Review

Hi there boat trailer owners. Today, we're going to be taking a look at CE Smith's replacement keel roller rods. And this is what our replacement roller rod's going to look like. These are available in either two different diameters, whether it be five eighths, like we have here or half inch, you just want to match it up to your old one. And they're also available in varying lengths. So that way you can get the proper span for your particular trailer.

And all of them are zinc coated to protect them from rusting corrosion, which is very common on your boat trailers since you're pulling it in and out of the boat dock all the time, you're next to the Lake. They often get wet. So this way we can ensure that we're going to have long lasting operation of this rod, and it's not going to seize up inside of here due to rust and corrosion.Also included with it you'll receive cap nuts for each side of your rod. And these are nice because once you press them on there, they're pretty much a permanent fit, you have to really try to get them off of there. And since this is a roller, it doesn't ever really get forces side to side, but we don't want to use regular thread on nuts on something like this since it does roll.

That could potentially cause the nuts to back off. So this is an ideal solution. If your old keel roller or keel roller rod are worn out and need replacement, the replacement shaft here is going to be a great option for you because it's kind of a one use thing, unless you can get yourself some new cap nuts. And even if you do get new cabinets, if it's heavily corroded and worn down, those cap nuts may not fit as tight and as properly as they used to.So when replacing your keel roller, when it's wore out, I highly recommend also replacing the keel roller rod. The rod is going to be made of solid steel with a zinc coating.

So it's going to be extremely durable holding up the weight that is pressed down from the boat sitting on it there. And the zinc coat is going to protect it against rust and corrosion. If your keel roller is worn out. And that's why you're looking at getting replacements. We also carry the keel rollers here at

So you can get a set up just like this. You can see how nice and smooth it is, and we've got a nice surface for our boat to rest on.Today we're going to be replacing the keel roller's shaft because our key roller's all damaged up and in order to get the roller off, we have to take the shaft out and the nuts typically get damaged and are not reusable. So we're just going to be replacing it all as an assembly. Start by removing our roller's nuts. We're just going to get behind it with a pair of pliers. We're just going to pop that cap off of there. inaudible 00:02:18. Our shaft will then slide out. We can remove our roller and then install our new components. We've got our shaft here and I find it easier to get one cap nut on first. So we're just going to set that on top and we're just going to hammer it into place. I'm going to use a rubber mallet just to help minimize how much dings I make on the little cap. And it's really that simple. And you can see here, there's no way I'm going to push this off. If I wanted to get this off of here, I would almost have to take another hammer and smash it off of there because you're just not going to be able to pull it off. Now we can just take our roller. We're going to set it into place. Slide our rod all the way through the roller, until it comes out on the other side. We'll then take our cap, we're going to set it into place. Now that we got it just barely started. We're going to finish tapping it on. I'm going to use a hammer on the other side, because it might hurt your hip or something else if you're holding it. And we can see our shaft spins, our roller spins and it's nice and solid, it's not going anywhere. Thought you need a hatchet. And that completes our look at CE Smith's replacement keel roller rods.

Customer Satisfaction Score:

Customer Reviews

Roller Shaft with Pal Nuts for Boat Trailer Rollers - Zinc-Plated Steel - 5-1/4" x 5/8" - CE10721A

Average Customer Rating:  4.8 out of 5 stars   (679 Customer Reviews)

5-1/4" Long x 5/8" diameter steel shaft for 4" rollers replaces a worn-out roller shaft on your boat trailer. Includes 2 pal nuts for mounting.


I try to buy USA prodoucts & CE Smith Co. makes it with quality. At this time I`m restoring a small boat trailer, & alum. boat.


Arrived fast and good quality. For easy install I used a large C-clamp to put the caps on pin. Works Great!


Installed product


Utilized several products purchased from etrailer while building a double trailer for two sneak boxes. etrailer always had the products I needed in stock, delivery was prompt and their service/follow up was excellent. I will not hesitate to continue to purchase from them in the future.


I have a low hanging tool box off the back of my motorhome tow vehicle. I am mounting a wheel to keep it from scraping. Etrailer is a good vendor, good products, good followup, and fast shipping.





Etrailer Expert

Mike L.


@James Awesome!


Bought for a spare, when I need to replace a roller. Looks like it will work fine.


Popped together easily. More professional looking than a bolt and but.


for economy shipping it arrived faster than expected
everything I ordered was in the package and the right sizes


Item was exactly what I wanted.


Worked great





Fits great.


Easy to order and shipping was quick.




The shafts fit the rollers and the trailer bracket perfect and were an easy replacement. I’m glad I didn’t try to reuse any of my old parts. Would definitely purchase these again.


The 13" shaft seems to be the right length for the 12" rollers I got; it may actually be a bit longer than 13" which is great


I have ordered several times over the years for trailer parts and have always been very satisfied with the quality and customer service I have received. This order for several parts was no different. when I need parts I know I can find what I need at E Trailer. Shipping is fast and reasonably priced. Very satisfied.


Fit the panel bracket perfectly.


Same as always great quality and fast shipping
Thanks etrailer


Check the shaft length on your trailer before ordering. My old shaft was longer. The new one bearly had space for the pal nuts. Had to bend the roller brackets to make it fit..




I am refurbishing an old trailer and need this item. It is exactly the piece I needed to replace. The item was shipped and arrived very fast and I was kept informed of the whole process in a timely matter. Very impressed

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See what our Experts say about this CE Smith Boat Trailer Parts

  • Does Dutton-Lainson 4-Inch Boat Trailer Spool Roller DL21566 Contain Metal
    Dutton-Lainson 4-Inch Boat Trailer Spool Roller # DL21566 is made of rubber but it has an inner sleeve made of plastic that provides the internal 5/8-bore size and smooth surface to mate with a roller shaft like # CE10721A. I checked this item myself to make certain. Please refer to the linked photo.
    view full answer...
    Image 1 for
  • Availability of a Spool Roller Assembly Without the Roller
    The closest thing that we carry to the roller assembly # CE32100G at this time is the Panel Bracket # CE10300G. This does not include the shaft or the end caps, so you will need the Roller Shaft with Pal Nuts # CE10721A as well.
    view full answer...
  • Roller Shaft and Pal Nuts For a Keel Roller with a 5/8 Inch Inner Shaft Diameter
    You are going to need a 5/8 inch diameter shaft and pal nuts. You could use # CE10721A which comes with both. The shaft is 5-1/2 inches long. We also have other lengths that come with pal nuts: # CE10726A for 11-1/8 inches, # CE10725A for 9-1/4 inches, # CE10727A for 13-1/2 inches, or # CE10722A for 6-1/4 inches. The roller has a 3 inch diameter.
    view full answer...
  • Rubber Keel Roller Shaft for 3-3/4 Inch Spool-Type Roller and Mounting Bracket
    The 3-3/4" Rubber Keel Spool-Type Roller for Boat Trailers # 804 can use the Roller Shaft with Pal Nuts for Boat Trailer Rollers - Zinc-Plated Steel - 5-1/4" x 5/8" # CE10721A. We do not have a shorter roller shaft length, so if you have a mounting bracket requiring a shorter length you would need to trim it and then paint the trimmed edge to prevent corrosion prior to installing the pal nut. Most often this roller is paired with that shaft as well as the CE Smith Panel Bracket for 4"...
    view full answer...
  • Replacement 4-1/2 Inch Long Spool Rollers for a Boat Trailer
    In order to find the correct replacement spool roller for your boat trailer, you would need to measure from the inside of each mounting bracket. The 4-1/2" long measurement that you provided is not common and we would not have anything that matches this dimension exactly. With that being said, I recommend using a 4" long roller and adding a couple washers on each side. You could also tighten the brackets more to pull them in further. The bells that you mentioned would be too thick to...
    view full answer...

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Info for this part was:

Employee David L
Written by:
David L
Employee Dustin K
Video by:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee David F
Installed by:
David F

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