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Boat Trailer Deluxe Roller Bunk - 4' Long - 10 Sets of 3 Rollers - by Dutton-Lainson
Dutton-Lainson

Boat Trailer Deluxe Roller Bunk - 4' Long - 10 Sets of 3 Rollers - by Dutton-Lainson

Part Number: DL21740
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$214.33
Retail:$336.20
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D-L roller bunks provide a quick, easy, and inexpensive way to upgrade bunk-style trailers to rollers. 1-800-940-8924 to order Dutton-Lainson boat trailer parts part number DL21740 or order online at etrailer.com. Free expert support on all Dutton-Lainson products. Great prices and Fastest Shipping for Boat Trailer Deluxe Roller Bunk - 4' Long - 10 Sets of 3 Rollers - by Dutton-Lainson. Boat Trailer Parts reviews from real customers.
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Dutton-Lainson Boat Trailer Parts - DL21740

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

D-L roller bunks provide a quick, easy, and inexpensive way to upgrade bunk-style trailers to rollers.


Features:

  • Non-marking "2 compound" rollers
  • Durable, wear-resistant inner surface
  • Soft, boat-cushioning outer surface
  • Universal mount attaches either vertically or horizontally
  • Optional roller bunk bracket (sold separately)
  • 10 Sets of 3 rollers
  • Constructed of 12-gauge pre-galvanized steel
  • Made in the USA


Specs:

  • Weight capacity: 2,500 lbs
  • Roller assembly width: 4-7/16"
  • Mounting bracket: 1-3/4" wide
  • Mounting holes: 3/8"
  • Quantity: 2 roller bunks


21740 Boat Trailer Deluxe Roller Bunk - 4' Long - 10 Sets of 3 Rollers - by Dutton-Lainson





Video of Boat Trailer Deluxe Roller Bunk - 4' Long - 10 Sets of 3 Rollers - by Dutton-Lainson

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




Video Transcript for All About the Boat Trailer Deluxe Roller Bunk

Today on our trailer, we're going to take a look at the Dutton-Lainson boat trailer, Deluxe Roller bunk, part number D-L-2-1-7-4-1, and our five foot section, part number D-L-2-1-7-4-0 for our four foot bunk. Here we are with our boat trailer in the water, and we've got the standard boards. To launch our boat, especially when you're doing it by yourself, can be difficult because you've got to push the boat off. I'm in the water and it's not very easy. But with our rollers installed, the boat simply slides off. You almost don't even need to push it in. Also, just as easy as we launch our boat into the water, it's that easy to load the boat back onto the trailer.

Here's what the complete install's going to look like with our roller bunks in place on our trailer. This'll come with two sets of five foot rollers for a total of twelve sets of rollers. Dutton-Lainson also makes a four foot set of bunk rollers. The four foot long ones are one foot shorter than the five-footers here, and they have one less set of the bunk rollers. Now let's go ahead and show you how to install it. To begin our install, we're going to remove the old manufacturer's boards and brackets.

Since we're removing the bunk boards and brackets, we're just going to take the U-bolts off the frame. Quick tech tip. Before you remove your boards, take a tape measure and get the height of your board. That way, when you install your new brackets and rollers, you can set it back to the same height. Now that we have the boards loose we'll go ahead and take them off the trailer and set them aside, as they will not be reinstalled. For our new rollers, we're going to install a new bracket.

This is the Dutton-Lainson universal mounting bracket, part number D-L-2-1-7-4-2. To secure it to the trailer, we're just going to reuse the old manufacturer's U-bolt. Now once that's set in place I'm going to go ahead and tighten it down. Note for additional security, we can add a second set of U-bolts here on the other side. Now here at the center of support, we're going to have two five-foot rollers come in together.

We'll need two brackets, both getting attached to the same spot. To do that, we'll bring in a U-bolt from each side. This will secure our bracket. Now I've got my first one in place, the back side here of the center support. We've got our second U-bolt and support bracket. Now after all our hardware is in place, we'll make sure she's in position, and then tighten down the U-bolts. Keep in mind when tightening down your U-bolts, make sure you tighten them down evenly. Now once we have the center support done, we'll go ahead and install our last bracket here at the very end and repeat the same process we did for the very first bracket. Now with all our brackets secured, we'll go ahead and put our bunk rollers in place. Starting here at the rear set of bunk rollers, we'll set it onto the brackets first. Now supplied with the install kit, you'll need to add a bolt or bolt and washer for this application that'll go down through your bunk roller, then through the bracket. Underneath, I'm going to add a flat washer and nut. It's recommended to use nylon lock nuts. This will help prevent the hardware from loosening. Let's go ahead and install it finger tight this time. Now we've got our front attachment point in place we'll go ahead and do the same process here for the rear attachment point. Next, we're going to install our front bunk and rollers. It'll sit here on our forward and second bracket. But because of how close we are oriented to the rear bunk, we're going to remove the rear set of rollers and we'll need to drill at our attachment point so that we can secure it to the bracket. Let's start with removing the rollers. Using a couple three quarter inch sockets, we can simply just go ahead and remove the bolt that holds the rollers in place pause. I'm just going to slide the rollers back onto my bolt, thread that nut back on. You've got to hold them together while I set them aside. Now we'll go ahead and put our front bunk in place, set it in position on the bracket, and mark the hole. Now we'll take our bunk back off, we turn it over and drill out the hole. Now to drill out the hole, I'm going to use this small pallet bit and then open it up to my final size using the step-bit process. We're now ready to go ahead and put the bunk back in place, drop in our hardware, and secure it. Now with all our hardware in place, we'll go ahead and tighten down all our fasteners. Now with one side done, we'll go ahead and repeat the same process on the other side. There you have it for the review and install of the Dutton-Lainson boat trailer deluxe roller bunk, part number D-L-2-1-7-4-1.

Customer Satisfaction Score:

Ratings & Reviews

4.8

395 reviews
D-L roller bunks provide a quick, easy, and inexpensive way to upgrade bunk-style trailers to rollers.

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

  • Recommended Roller Bunks Replacement for Wooden Bunks for G3 1860 Boat
    We do have a variety of roller bunks that can be used as a direct replacement for carpeted bunks. I recommend either going with the 2,500 lb capacity which comes in Black # DL21754 or Silver # DL21740, OR the 3,000 lb capacity which also comes in Black # DL21755 or Silver # DL21741. I have also attached a link to all of the options that you can check out, as well as a link to all of our brackets if they also need replacing.
    view full answer...
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  • Availability of Replacement Roller for Dutton-Lainson Boat Trailer Deluxe Roller Bunk
    Hey Todd! We do sell the replacement rollers for the Boat Trailer Deluxe Roller Bunk # DL21740. The part you need is the Replacement Roller for Dutton Lainson Roller Bunks # DL203228. If you need anything else feel free to reach out in the comments below.
    view full answer...
  • Can I Convert Regular Bunks To Roller Bunks
    Yes, you could convert your Rolco trailer from the wooden bunks to roller bunks. The Boat Trailer Deluxe Roller Bunk, part # DL21741, has a universal mount system that attaches directly to either vertical or horizontal positioned bunk boards that should work on your trailer. You may also be interested in Boat Trailer Roller Bunk Bracket, part # DL21742, for mounting the roller bunks. You will have to install these at the correct angle for your boat hull as they are stationery. We also...
    view full answer...
  • Recommendation for Roller Bunks on a Boat Trailer with 8 Foot Carpet Bunks
    You can use the 5 foot long Dutton-Lainson deluxe roller bunk # DL21741 on your 8 foot bunk, and you would just locate it in the middle of the bunk. I also offer the Dutton-Lainson roller bunk, part # DL21740. This is a 4 foot long roller bunk, so you could install 2 per bunk. You will also want to make sure that the roller bunks will be able to handle the weight capacity of your 18 foot boat. To install the roller bunks to your trailer, you may also be interested in the Dutton-Lainson...
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  • Dimension Of Rollers On Dutton-Lainson Deluxe 4 Ft Roller Bunks For Boat Trailer
    The rollers on the Dutton-Lainson Deluxe Roller Bunk, part # DL21740 measure 2-1/4 inch diameter and are 1-3/8 inches wide. These wheels are made of a solid core, high grade rubber. These bunks have a weight capacity of 2,500 lbs and come with 2 in a package. If you need a 5 ft section the number is # DL21741. This has 12 sets of 3 rollers and have the same roller dimensions. These roller bunks have a weight capacity rating of 3,000 lbs. If roller bunk brackets are needed, I recommend...
    view full answer...
  • Recommended Roller Bunks For 16' Crestliner Pontoon Boat For Easier Launching
    I am happy to help. To allow you to launch your 16' Crestliner Pontoon easier you will want to add roller bunks to your current bunk boards. The correct amount will be dependent on how long your bunk boards are. If you have 10' bunk boards you will want two of the 5' rollers( One set of the # DL21741 per bunk), or if you have shorter bunk boards you can use the 4' # DL21740 instead. You can likely get away with just adding the rollers to one bunk board on each side, but for the easiest...
    view full answer...
  • Best Bunk Rollers for Loading a 2004 Stingray 220DR Boat
    Hi Wayne! I actually recommend going with the Dutton-Lainson roller bunks over the CE Smith brand because the CE Smith are rated for 1,500 lbs per set while the Dutton-Lainson are rated for 2,500 lbs per set. According to my research your boat weighs in at about 3,800 lbs so the higher weight rating is needed. To get the correct roller bunk just choose which color you want and which length best matches the bunks on your trailer: Black - 4' Long # DL21754 - 5' Long # DL21755 Silver ...
    view full answer...
  • Roller Bunk for Jet Ski Trailer that is Used in Saltwater
    We have the CE Smith Roller Bunks for Boat Trailers # DL21740 which is a set of galvanized roller bunks that are 4 feet in length. These will work great in a saltwater application since galvanized steel holds up well.
    view full answer...
  • Are CE Smith Roller Bunk Brackets Compatible with Dutton Lainson Roller Bunks
    Hey Rusty, yes the Dutton Lainson roller bunks part # DL21740 are compatible with the swivel bracket assemblies part # CE10003G-4.
    view full answer...
  • What is Overall Height of Boat Trailer Deluxe Roller Bunk # DL21740
    Hey Larry, the overall height of the Boat Trailer Deluxe Roller Bunk # DL21740 that you referenced is 2-3/4 inches. Is that short enough to work for you?
    view full answer...
  • Recommended Boat Winch For 2,200LB Aluminum Center Console Boat For Use in Salt Water
    The Fulton XLT 2-Speed Trailer Winch # F142425 is one of our strongest mechanical boat winches. This winch is rated for up to 3,200lbs and has a 5.1:1 or 12.2:1 gear ratio to aid in pulling the boat onto your trailer. The handle is 10" long and the entire winch has a zinc finish with polypropylene cover to protect it from salt water. Since you mentioned you were bending the handle you might consider replacing your standard bunk boards with some Roller Bunks # DL21740. These will greatly...
    view full answer...
  • Can Roller Bunks be Used on a Pontoon Boat Trailer
    You could use roller bunks such as # DL21740 on a pontoon boat trailer. If the pontoons sit on carpeted bunks and support the boat then you would need to place rollers the whole length of each of the carpeted bunks. Set # DL21741 is rated higher at 3,000 pounds per set and longer at 5 feet so I recommend going with these over the 4 foot long option. If the boat is actually supported by the hull then you would need roller bunks placed everywhere the boat makes contact with the trailer....
    view full answer...
  • Roller Bunk Recommendation for a Boat Trailer With 8 Feet Bunks
    Yes, you would want to use two sets of 4 foot roller bunks since your current bunks are 8 feet long. I would recommend you go with the Dutton-Lainson Boat Roller Bunks # DL21740. These roller bunks would have plenty of capacity and would be sized perfectly. I attached a review video for this product for you to check out also. You may also be interested in purchasing Roller Bunk Brackets part # DL21742.
    view full answer...
  • Adding Roller Guide-Ons to Boat Trailer Carrying Drift Boat
    We can help you with roller guide-ons for your trailer that carries your drift boat, or dory as they are sometimes known. The linked page will show you all such items we offer. I suggest you take a look at the CE Smith Roller-Style Guide-Ons for Boat Trailers, part # CE27610, and also Fulton part # FBGR200101. The CE Smith rollers would be my preference between the two because they will be gentler on the hull. If you want to add roller bunks to your trailer to make it easier to load the...
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  • Roller Bunk Recommendation for a 10 foot Section of Bunks
    The longest section of roller bunks we offer is 5 feet like the part # DL21741 that you referenced. For a 10 foot long section you would want to use one 5 foot section like the # DL21741 and then a set of 4 feet long roller bunks like the part # DL21740. The reason for this is that each roller bunk has a roller at the end of it. Since the rollers are spaced 1 foot apart on the bunks you would want 1 foot between each set to equal 10 feet and have the rollers spaced evenly.
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  • Roller Bunks Rated for More Than 1,500 lbs
    There are roller bunks for boat trailers rated for over 1,500 lbs; you could use the Dutton-Lainson Boat Trailer Deluxe Roller Bunk # DL21740, which are rated for 2,500 lbs and install with Boat Trailer Roller Bunk Bracket # DL21762. I've attached links to video reviews of the roller bunks for you to take a look at.
    view full answer...
    Image 1 for
  • What Is Weight Capacity Of Yates Keel Roller For Boat Trailers
    I called my contact at Yates Rubber and asked about the Keel Roller for Boat Trailers, part # YR1200Y. They told me that the weight capacity is 400 lbs. They also said that they are typically used to help as a guide and the bunks normally handle the bulk of the boat and motor weight. I recommend roller bunks like part # DL21741. These are 5 ft long roller bunks that can be attached to your wooden bunks on the trailer or attached to the trailer frame. These roller bunks have a weight capacity...
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  • Can Deluxe Roller Bunks be Used to Replace 4 Wobble Type Rollers on Boat Trailer
    You definitely can replace your current 4 wobble rollers like part # CE29210 with the Boat Trailer Deluxe Roller Bunk # DL21740. These can be mounted on top of carpeted or wooden bunks as well as with brackets like the part # DL21742. I have attached a few photos of how these have been installed on different boat trailers that you can reference.
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    Image 1 for Image 2 for Image 3 for
  • What Types of Installation Hardware Should be Used to Install Dutton-Lainson 4-Foot Roller Bunks
    The Dutton-Lainson 4-Foot Roller Bunks, part # DL21740, can be mounted directly to the 2 x 4 bunk boards on your trailer using hardware of your choosing. My contact at Dutton-Lainson advised that the choice of nuts and bolts versus screws is not critical so long as the rollers are firmly secured. I took a few measurements of this part for your reference and to help you select hardware. These measurements are shown on the attached photo. The interior channel for mounting the roller bunks...
    view full answer...
    Image 1 for
  • Replacing Wood Bunks with Roller Bunks on a Boat Trailer
    Since it is recommended to use 2 roller bunk brackets for each individual roller bunk, I recommend adding additional roller bunk brackets and removing the wood bunks. You could use the Boat Trailer Roller Bunk Bracket, # DL21742. This bracket is compatible with the 4 foot and 5 foot Dutton Lainson Roller Bunks, # DL21741 and # DL21740. You will need a total of 8 brackets to mount a 5 foot and a 4 foot roller bunk on each side of the trailer.
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  • How Long of a Bunk Roller to Use on a Boat Trailer
    There is not really a rule for the length of roller bunk needed but a good way to select this would be to match them to the length of your bunk boards. Therefore, you would want to use two sets of the Boat Trailer Deluxe Roller Bunk part # DL21740. These bunk rollers have a 2,500 lb weight capacity. If you need more than you would need to go up a size to the Boat Trailer Deluxe Roller Bunk part # DL21741 which are 5' long and have a 3,000 lb weight capacity. Don't forget the brackets...
    view full answer...
  • Recommended Boat Trailer Parts to Ease Loading in Rough Water and Sand
    For your application I recommend installing roller bunks as well as some guide-ons to help make loading your boat MUCH easier with your conditions. The Caliber Marine Teflon Slides look like they would help to make loading/unloading the boat easier, but not near as easy as it is with the rollers. For the roller bunks we have a selection to choose from and it really just depends on where you plan on installing the rollers. You can piece 2 together for longer boards. From Dutton Lainson...
    view full answer...
  • How to Install Boat Trailer Roller Bunks on a EZ Loader Boat Trailer
    You can simply mount the Boat Trailer Deluxe Roller Bunk, part # DL21740, by just screwing or bolting it in. The mounting brackets, Boat Trailer Roller Bunk Bracket, part # DL21742, are optional in mounting part # DL21740, and are not required. If you remove your old bunks and installed part # DL21740, the brackets would be needed to attach to the bottom of the bunk where the holes are and there would be no drilling required. This way the bunks would be adjustable to change the height. If...
    view full answer...
  • Bunk Rollers for Boat Trailer Hauling 2002 Bass Tracker
    We do have bunk rollers that are going to work for you though we do not have specific dimensions or parts lists for years, makes and models of boats or trailers. You will simply need the correct length of bunk rollers for your trailer; for example Roller Bunks # DL21740 are 4' long and 4-7/16" wide. They will mount on Roller Bunk Brackets # DL21742. I've added links to video reviews of these parts for you to take a look at.
    view full answer...


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