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Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers

Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers

Item # DL21741
Our Price: $215.32
Boat Trailer Parts
Shipping Weight: 38 lbs
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D-L roller bunks provide a quick, easy, and inexpensive way to upgrade bunk-style trailers to rollers. Features rubber rollers with durable, wear-resistant inner surface and soft, boat-cushioning outer surface. 1-800-940-8924 to order Dutton-Lainson boat trailer parts part number DL21741 or order online at Free expert support on all Dutton-Lainson products. Great prices and Fastest Shipping for Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers. Boat Trailer Parts reviews from real customers.
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Dutton-Lainson Boat Trailer Parts - DL21741

  • Bunks
  • Rollers
  • Roller Bunk
  • Black Rubber
  • Dutton-Lainson

D-L roller bunks provide a quick, easy, and inexpensive way to upgrade bunk-style trailers to rollers. Features rubber rollers with durable, wear-resistant inner surface and soft, boat-cushioning outer surface.


  • Rubber rollers
  • Durable, wear-resistant inner surface
  • Soft, boat-cushioning outer surface
  • Universal mount attaches either vertically or horizontally
    • Installation hardware not included
  • Optional roller bunk bracket (sold separately)
  • 12 Sets of 3 rollers
  • Constructed of 12-gauge, galvanized steel
  • Zinc-plated steel roller hardware included
  • Made in the USA


  • Bracket width: 1-7/8"
  • Bracket depth: 1-7/8"
  • Wheel-to-wheel width: 4-3/4"
  • Capacity: 3,000 lbs
  • Quantity: 2 roller bunks

The deluxe style provides a universal mount that attaches directly to either vertically or horizontally positioned bunk boards and has 3 rollers per set. Roller bunk bracket, DL21742 (sold separately), is optional. Constructed of 12-gauge, pre-galvanized steel.

21740 Roller Bunk - 5' Deluxe Style by Dutton-Lainson Model 6388

Customer Satisfaction Score:

Customer Reviews

Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers - DL21741

Average Customer Rating:  4.8 out of 5 stars   (262 Customer Reviews)

D-L roller bunks provide a quick, easy, and inexpensive way to upgrade bunk-style trailers to rollers. Features rubber rollers with durable, wear-resistant inner surface and soft, boat-cushioning outer surface.


As you may observe, an 8 ft roller bunk would have made it more simple to install! Two 4ft would not be a good idea as the angle iron would have still be necessary.



Excellent up to now but useless in a ramp with deep water boat floats anyway. Shallow waters need a push where the rollers come into action. Up to now, I did not have to push bit I am looking forward to shallow waters!


I have the 3,000 # model and it is exactly what I needed to make loading and unloading my Tracker Pro V 165 simpler. I don't need to back my trailer nearly as far back in the water so I don't get wet feet every time I go fishing.



After a year of using my roller bunks, I can say that I will never have another boat trailer that is not equipt with them. The ease of lauching and loading my rig is fantactic.


I received the roller bunkers but had to wait a few weeks to install them and try them out. I put the 5' roller bunks on 8' carpeted, wooden bunks as your instructions suggested (centered). Once I had the hardware it was a simple process. I took my boat out of the water and could not believe how much easier it was. After I serviced my boat I put it back into the water. I basically had to hold the crank handle to keep the boat from sliding into the water too quickly. I am so pleased with this product, and the best part...I didn't even get my truck tires wet.



Did you have to adjust the height of the 8 bunk board and where on the bunk board did you install them? Front, middle, or the back?Dave

Patrick B.


If you go with roller bunks that are less than the length of the wood bunks, then you need to center the rollers on the wooden bunk. On this boat trailer, there were only the two bunks and each got a set of rollers so no height compensation was needed. The only time you will need to adjust bunk height is if you are not putting rollers on all of them.


Combined bunk rollers and a keel roller (along with a winch and some lumber) to create an easy way to lift and store our 22' kayak. Works like a dream!


Much better constructed then I expected.

Frederick D.


Excellent product would do it again.

Etrailer Expert

Mike L.


@FrederickD They work great, don't they? What type of boat are you carrying?


I built a double JetSki trailer and needed bunkers. So after considerations of lastability, durability and ease of use I decided to go with roller bunks. My first Jetski I purchased I had to actually pick up off the ground but the strap on the either Jetski and simply started cranking. With the roller bunkers the ski got right on this is with one man picking up unit with nothing but a strap!! This wasnt a kids 1500cc Jetski laying on the ground either I simply cranked & rolled it straight up onto the bunks no problem! Since this time I’ve had orders of 12 trailers to be manufactured! Ill never have to replace boards or carpet or worry about them breaking in travel and crushing hulls!
Love it


First off, I alway wanted a set of these, but couldn’t justifying installing them when there was nothing wrong with my stock bunks, and my boat was never a issue to put on/off the trailer. WAS I EVER WRONG!!!
I have an 2014 Lund WC-14 that spends most of it’s life on my trailer. It is used in fresh and salt water and always well rinsed after use.
A short while after putting it in the water for the first time this year, I noticed a pin hole leak in the hull. The boat is in show room condition, so I couldn’t believe my eyes. When I got it back home, I pulled the boat off the trailer to find that the aluminum hull was starting to pit where the trailers carpet coated bunks make contact. Everywhere else was still like new. After fixing the hull with JB weld marine, I had to find a way to prevent this from happening again. The only answer was to use a bunk that does not hold moisture. After doing some research, I decided on the 5’ Dutton-Lainson roller bunks. Super easy installation using the same mounts as the old carpet bunks. I pulled off the old bunks and bolted these to the old brackets. I did have to lower the mount brackets to keep them at the same height as my old bunks. No big deal. Less than a hour later, done. I can roll the boat back and forth on the trailer with one hand now, and moisture should not be a problem.


Using these on a homemade jet ski ramp on my pier and they are excellent. Tried this with just carpet on the rails and it actually broke the strap. I can now raise the jet ski from the water turning the crank with one hand.



Still working great. I would definitely buy them again.


Installed these on my existing boat ramp. I poured a 'V' groove like a curb and installed. At the top I installed a 3 ton winch. I pull my 28 foot pontoon boat out of the Gulf of Mexico no problem. I enjoy watching the neighbors eyes light up in envy. Great product and easy to install. One note: I shoot them with white lithium grease regularly due to being in the salt climate.


I opened my new rollers today. They were exactly as pictured on the site. What you can't see from pictures is the quality of the materials. I expected the channel to be minimal strength and was surprised to see it is heavy duty! I ordered an additional pair. Only half done


Built solid and ready to install. Wish there were some mounting holes in the middle. Hope the tracks do not rust but only time will tell.


This roller bunk has made launching and retrieving our rescue jet ski much safer and quicker!


Used your roller bunks to make a portable shore docking station. Project turned out great with the solid frame of the roller bunks. Saved me $$$ buying a kit from somewhere else!!


Very Heavy Duty. Thankyou so very much for such a high quality product!! I will send pictures after installation.


Just wanted to brag on Papa's amazing boat ramp, built by his own bare hands, all in the name of fun. Behold and bask in it's glory!
The rollers work very well and all I lack in finishing the job is some stain to make it look professional.


No more replacing old rotten wood bunks and recarpeting.
Problems YES!!!!!, but not with installation of rollers. Bolts were all rusted and of course would not loosen sooo a large screwdriver and a hammer to split the rotten wood and then a hacksaw and vicegrips to cut the bolts
I started installing the outboard 5ft rollers first nooo problem, then the inside 10ft rollers (I bought 2ea 12" pieces of 1/4" angle iron for the center brackets where the 2ea 5' rollers would attach and now I'm ready to drill my holes but, the 2ea new 18 volt batterys are both dead (I just charged them both the day before) luckly I had my doz-all saw with me but, I had been using it to trim tree branches and it showed only 1/2 a charge left.
Take a chance or leave the boat in the lake over night. (Now my wife wants to know just how much longer is this going to take)
I live 75 miles away. I needed to drill 4 holes through 1/4" steel. I thought I would give it a try until the battery has nothing left.
Thank God I had sharp drill bits (3 different size bits for each hole) Just as I was finishing the last hole, again I hear HOW much longer!!!!!
Well the rollers look great and work great!!!!!! Much easier to launch, and when trailering I don't need to back into the water as far and, they center the boat better when putting the boat on the trailer.
This is the second trailer that I have put rollers on. (I didn't have this many problems and my wife wasn't there).
If you're thinking of changing to rollers I'm sure you'll be happy, just be prepaired with every thing you need and give yourself time about 1 1/2 hours and, if its hot - - you might think about leaving the wife else where!!!!! I should have had my wife take pictures. Sorry about that!!

Doug N.


GREAT, GREAT, GREAT !!!!!!!!!!!


So far so good i give more info by end of july but so far just got boat sitting on them an it did roll pretty easy. shipping was so fast ordered it on monday and got that coming fri. Lindy A. was a life saver she help me above and beyond thank you Lindy


We were having an awful time getting our boat on and off the trailer. I thought "wouldn't it be great if someone made rollers?"

So I did a search and landed on and low and behold...roller bunks. Yippeee.

The boat literally slides right on and slides right off into the water, no muss no em!!

VERY heavy duty, WELL made and VERY easy to install...just watch the tutorial videos.

Thanks E-Trailer & Delux roller Bunks!!

Terry C.


Still loving my Roller Bunks!!


Since I’ve used the rollers for a custom project which is not boating related this review may not be helpful to some.

Being an active RVer & getting older it’ was becoming difficult to access the bed of my F 250. Accordingly I used the rollers to make a slide out for the bed. I wasn’t about to pay the $1K for a pre-manufactured product.

The rollers have help up well with several hundred pounds of gear loaded on them. They roll as smoothly as when I first got them.

It may not be pretty but it works well. I’ll be making some modifications this winter to improve it’s functionality.



I made the improvements &roller bed is still functioning well. I live in a salt water environment with monevidemce of rist I can detect.


i launched my boat today. its the first time since redoing my trailer.the roller bunks work very well for me. launch and recovery are not as much work as before. i mounted bunks using 2nd recommended method. product, service, and shipping was outstanding. thanks again.

Charles F.


yes, still loving the rollers. every time i launch and recover i say the only regret about these rollers is i shouldve done it 20 years ago. thanks again.




I installed the 5' roller bunks on my Seadoo trailer, and they make loading and unloading a breeze even with shallow ramps or if the tide is out. I drive on, throttle up and hook the bow eye. So far they have not rusted, but it's only been one season.

Kevin T.


Season 2 is now behind us, and the roller bunks are still rust free and working as new. As far as I can tell from normal use With that said, I only used it a few times this year in fresh water.


Received 3 business days after order. Quality is excellent. Install was simple using 3/8 X 2 inch "lag screws" and washers over carpeted bunks. This was for a 14 ft Lund boat that I use in shallow lakes that do not have deep water ramps and many times the boat is not in the water when unloading. Boat loads and unloads easily now. Would recommend.

Gary R.


Works great as intended


These rollers are incredible! Very well built, solid steel and substantial nylon plastic rollers. We are harvesting seaweed in Maine into a 24' Carolina skiff on a wooden bunked trailer and we had a hell of a time getting the boat up onto the bunks. With these rollers we save a ton of time trailering on and off the landing. Our boat and load of seaweed weighs in at 4 tons! These are like MEGA-ROLLERBLADES for your boat hull! Hardly back into the water anymore! Just get the transom floating and kick the winch into free-wheel - boat slides off like a kid on a slippy-slide - amazing! Thanks etrailer and especially Donna for her great customer service!

Etrailer Expert

Mike L.


Were glad youre happy with the bunk rollers! They do indeed work great! Be aware that each set of two has a 3000 lb capacity. Exceeding that weight rating could damage the roller assemblies and cause damage to your boat.


My boat trailer had carpet covered bunks. When loading my boat, an Aqua Craft 24,about 3000 lb, the bow would hit the stops at the winch but when I pulled the trailer out of the water and the boat settled on the bunks the difference in angle would leave the bow about 4" from the stop at the winch. sitting on the carpeted bunks I could not pull it up to the stops. I removed the bunks and replaced them with the Deluxe Roller Bunk. The boat rolls easily up the the stops now and will roll off into the water.

Show More Reviews

See what our Experts say about this Dutton-Lainson Boat Trailer Parts

  • Weight Capacity of Boat Trailer Roller Bunks Explained
    The weight ratings for roller bunks like the Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections # DL21741 are interesting as it was explained to us that the capacity listed (3,000 lbs) is the max weight that the boat can be regardless of how many roller bunks are used. So if your plan is to use roller bunks and you were going to use the # DL21741 the capacity would be 3,000 lbs. This is due to the fact that at any given point a single set of the rollers could be carrying...
    view full answer...
  • Position of Roller Bunks on Trailer Carrying Double Hull Ouachita Jon Boat
    Roller bunks like the 5-foot Dutton-Lainson # DL21741 can mount directly to your wooden bunk boards since they have pre-drilled mounting holes. The exact positioning an angle of the bunks will matter since you want to avoid any damage to the hull by ensuring as much hull surface area as possible can make contact with the rollers. More contact area means less weight on any given part of the hull. Ideally you will have a pair of rollers for each part of the hull. I was able to find some...
    view full answer...
  • Can Roller Bunks Be Used on Pontoon Boat Trailer
    You can use roller bunks like the # DL21741 on your trailer. They can be attached to wood bunks like what you have too. Without seeing your trailer it's hard to say what the best route would be, but people use roller bunks on pontoon boat trailers all the time.
    view full answer...
  • Will the Boat Trailer Deluxe Roller Bunk # DL21741 Work on Boat Lifts that Flex
    As long as the flex in your boat lift is not too extreme the Boat Trailer Deluxe Roller Bunk # DL21741 would work well for you. The brackets might actually stop some of the flex.
    view full answer...
  • Should Bunk Board Carpet be Removed When Installing Dutton-Lainson Roller Bunks
    Good question, and you can mount the Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers # DL21741 directly to your carpeted bunk boards without any issue. If the carpet on the boards are on the verge of needing replacement or rotting out it may be a good idea to just get rid of the carpet but if not you can just leave it on the wooden boards. I've added links to a couple video reviews of these bunks for you to check out.
    view full answer...
  • Capacity of Dutton-Lainson Boat Trailer Deluxe Roller Bunks
    Though your line of thinking is perfectly logical, unfortunately it is a bit more complicated. The # DL21741 roller bunks have a 3,000 lb capacity per set and because a 5,500 lb boat does not have its weight evenly distributed, there will almost certainly be more weight at the back of the boat assuming that's where the motor is, and there would be more than 3,000 lbs of weight on that set of bunks so it would not work for your particular application.
    view full answer...
  • Can Roller Bunks Replace Wooden Bunks on Boat Trailer Using Same Brackets
    Yes, you can attach roller bunks in place of wooden bunks like with the part # DL21741 as the brackets of both designs are the same typically. I attached a review video for the roller bunks for you to check out as well.
    view full answer...
  • Using Roller Bunk to Help Center a Boat When Loading on Trailer
    You could use Boat Trailer Roller Bunks, like Dutton-Lainson # DL21741, that you can mount horizontally on the floor of the trailer. See attached photos. Your boat will glide on the rollers and help keep boat center as you load on to the trailer. You will have to measure your trailer's to see which size roller bunks will work for your application. The roller bunk are categorized in length and capacity. I have attached a link that will display all the roller bunks we carry and listed with...
    view full answer...
    Image 1 for
  • Roller Bunk Recommendation for PWC Trailer
    Yes, you can use a set of roller bunks like the Dutton-Lainson # DL21741 on your PWC on your trailer. This particular bunk system can be mounted directly to your current bunks if they are in good condition. However, it is recommended to remove your existing carpeting on your bunks before installing these rolling bunks.
    view full answer...
  • Bunk Roller Recommendation for a 22 ft Trophy Boat that weighs 5,000 lbs
    The capacity per pair of Boat Trailer Deluxe Roller Bunk # DL21741 is 3,000 lbs. If you used two pairs and the weight was evenly distributed you would have a capacity of 6,000 lbs. However, these rollers are 5 feet long so if you used 2 sets you would have 10 feet per side. For a 4 feet sections you would want Boat Trailer Deluxe Roller Bunk # DL21740. However, these sets only carry 2,500 lbs of capacity per pair, so if you used two sets you would be at 5,000 lbs which is what you listed...
    view full answer...
  • Where Do Roller Bunks Typically Locate on a Boat Trailer
    You want to locate the rollers on the frame of your trailer so that they overhang slightly off the back of the trailer so that the boat will contact them before any other portion of the trailer as you load it onto the trailer. I attached a picture that shows about where you will see them located on most trailer. You would most likely just need to put them in about the same place as where your carpeted bunks were.
    view full answer...
    Image 1 for
  • Number roller sets to support 6000 lb boat. Bob G
    Yes, you can use two sets of the Dutton-Lainson deluxe roller bunks # DL21741 side by side on one bunk or next to each other on separate bunks, as long as each pair of 5' sections is not supporting more than their 3,000 pound weight capacity. You just need to make sure you spread the total weight of the boat over more than one pair of bunks and that you position the bunks close enough together so there is not too much pressure exerted in any one location when loading the boat and/or when...
    view full answer...
  • Should Weight of Boat be More on Bunks or on Keel roller
    Most of the weight would need to be on the bunks and not on the keel rollers which are more for guiding the boat the right direction.
    view full answer...
  • Adding Roller Bunks to Carpeted Bunks
    You can mount the 5' Roller Bunks # DL21741 on your carpeted bunks, but the restriction is not going to be the length, it is going to be the weight of your boat. These bunks have a 3,000 lb weight capacity so as long as you are within that capacity you will be fine to use these bunks.
    view full answer...
  • Roller Bunks for a Boat Trailer with 7 Foot, 3 Inch Long Bunks
    What I recommend is to use 2 sets of the roller bunks # DL21740. Two bunks can cover the length of one bunk but you will need to trim one to fit. One set would be needed per bunk and then trimmed to fit. One roller bunk alone is 4 feet long. Normally I would say to strategically space them but a 3 foot, 3 inch gap is a little too much to overcome with strategic spacing.
    view full answer...
  • Are Dutton-Lainson Roller Bunks Durable Enough for Dry Loading an Airboat
    Provided that your airboat is within the capacity of the Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers Item # DL21741 then they will hold up quite well. The capacity per set is 3,000 pounds. The rollers themselves are made of a non-marking 2-compound material. It has a soft outer layer but the core is hard for strength. I have included a link to a video review of this product.
    view full answer...
  • Will the Dutton-Lainson Boat Trailer Roller Bunks Support my 6,000 Pound 23 Foot Boston Whaler
    Yes, you can use two sets of the Dutton-Lainson deluxe roller bunks # DL21741 for your 6,000 pound 23 foot Boston Whaler as long as each pair isn't supporting more than their 3,000 pound weight capacity. The capacity for a set of Dutton-Lainson roller bunk # DL21741 is 3,000 pounds for each 5 foot section, so keep in mind you will be spreading the total weight of the boat over more than one pair of bunks.
    view full answer...
  • How To Choose Correct Roller Bunks for Boat Trailer with Bottom and Side Bunk Boards
    In regards to the Dutton-Lainson Boat Trailer Deluxe Roller Bunks like part # DL21741, I recommend using these to replace the bottom bunk boards which you can see in the attached photo. That said, although there isn't an exact formula on what length roller needed we always recommend that you match their length to the bunk boards you will be replacing it with so two five foot sections per side in your case. The attached photo is likely very similar to your setup so this is what I recommend...
    view full answer...
    Image 1 for
  • Will Using Roller Bunks on a Boat Trailer Damage the Boat
    The only way the roller bunks like # DL21741 could cause damage is if they were improperly positioned, installed, or the boat exceeded the 3,000 pound capacity. They may leave some marks on the boat from the black rollers but other than that you should not experience damage. You will want to use as many roller bunks as you have regular bunks now. Or to put it another way, anywhere the boat touches the trailer you should have rollers there, evenly on each side. So you would not use 2 on...
    view full answer...
  • Can Dutton-Lainson Boat Trailer Roller Bunks Attach Directly to a Wooden Bunk
    The Dutton-Lainson roller bunks # DL21741 can be attached directly to a flat wooden bunk. All you would need is the hardware appropriate for your particular wooden bunks which you can obtain locally at a hardware store. Considering it is for marine applications I recommend galvanized hardware to match the base material of the roller bunks.
    view full answer...
  • Can Dutton-Lainson Deluxe Roller Bunk # DL21741 Be Installed Directly On Current Wooden Bunk
    The Dutton-Lainson Roller Bunk # DL21741 that you referenced can be installed directly on top of your existing wooden bunks. According to the installation instructions when mounting over wooden bunks a 3/8 inch diameter lag screw is required. The roller bunks are equipped with several sets of mounting holes. The roller bunks are 5 feet long and 4-3/4 inches wide and come with 12 sets of 3 rollers. In the attached picture I have the dimensions of the rollers for you. They are made out...
    view full answer...
    Image 1 for
  • How Many Roller Bunks are Needed for a 1971 Johnson Boat
    The Dutton-Lainson Boat Trailer Deluxe Roller Bunks # DL21741 have a weight capacity of 3,000 lbs so as long as your 1971 Johnson boat doesn't exceed this capacity you just need to choose the proper length for your bunks. The above-mentioned roller bunks come in 5' lengths so simply order enough to cover the area of your current bunks.
    view full answer...
  • Recommended Roller Bunks Instead of Plastic Glides for Boat Trailer Bunk Boards
    We do not carry any of the plastic glides for the trailer bunks. What I recommend instead is the roller bunks like # DL21741 that allow the boat to move into position much easier and with less resistance than the plastic glides. These will further protect your boat from scratches and allow more free loading and launching of your boat. I've attached a couple of videos to assist so you can see how these plastic wheels function.
    view full answer...
  • Can Roller Bunks be Attached to 2x6 Boat Trailer Bunks
    Yes, you can mount the Dutton-Lainson roller bunks # DL21741 to 2x6 bunks. They can be attached to a flat surface like a bunk as long as it is at least 1-7/8 inches wide which is the footprint of the roller bunk.
    view full answer...

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