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Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks Parts DL21740 & DL21741

Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks Parts DL21740 & DL21741

Item # DL21742
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DL21742 - Zinc-Plated Steel Dutton-Lainson Roller and Bunk Parts
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Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks Call 800-298-8924 to order Dutton-Lainson boat trailer parts part number DL21742 or order online at etrailer.com. Free expert support on all Dutton-Lainson products. Guaranteed Lowest Price and Fastest Shipping for Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks Parts DL21740 & DL21741. Boat Trailer Parts reviews from real customers.
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Dutton-Lainson Boat Trailer Parts - DL21742

  • Roller and Bunk Parts
  • Brackets
  • Bunk Bracket
  • Dutton-Lainson
  • Zinc-Plated Steel

Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks


Features:

  • Roller bunk bracket, for mounting galvanized Roller Bunks models
    • Fits: DL21740 (model #6387) and DL21741 (model #6388)
  • Sold individually
    • 4 Needed to mount a pair of roller bunks
  • Die-formed of heavy gauge steel plate
  • TUFFPLATE finish
  • Measurement between slotted holes from center to center: 1-1/4"


Zinc plated yellow chromate TUFFPLATE finish has three times the corrosion resistance of standard zinc plated trivalent chrome process and 30 percent greater corrosion resistance when compared to powder coated finish.


Results of lab test using 5 percent neutral salt spray confirms our TUFFPLATE finish provides in excess of 500 hours against First Red Rust and in excess of 100 hours of First White Corrosion.



21742 Roller Bunk Bracket - Universal by Dutton-Lainson Model 6389





Video of Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks Parts DL21740 & DL21741

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




Video Transcript for Dutton-Lainson Boat Trailer Roller Bunk Bracket Installation

Today on our boat trailer we're going to review and install the Dutton-Lainson Boat Trailer Roller Bunk Bracket part number DL21742; this is applicable in conjunction with both 4 and 5 foot Dutton-Lainson Roller Bunks part number DL21740 and part number DL21741. To begin our install we're going to remove the old or manufacture's boards and brackets. Since we're removing the bunk boards and brackets we just going to take the u-bolts off the frame. Quick check tip, before you remove your board 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 lose we'll go ahead and just take them off the trailer and set them aside as they will not be reinstalled. Now for our new rollers we're going to have the Dutton-Lainson Boat Trailer Deluxe Roller Bunks part number DL21741. Now for our new Rollers we're going to install a new bracket to secure it to the trailer.

We're just going to reuse the old manufacturer's u-bolt. Once I have it set in place I'm going to go ahead and tighten it down. Note, for additional security we could add a second set of u-bolts here on the other side. Now here at the center support we're going to have 2 5 foot rollers come in together; we'll need 2 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 brackets.

Now I've got my first one in place, the back side here of the center support. We'll get our second u-bolt and support bracket. Now that 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.

It will be the same process 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. Not 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 got our attachment point in place we'll go ahead and 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 going to remove the rear set of rollers and we'll need to drill out our attachment point so that we can secure it to the bracket. Let's start with removing the rollers. Using a couple of 3/4 inch sockets we can simply just go ahead and remove the bolt that holds the rollers in place. I'm just going to slide the rollers back onto my bolt, thread that nut back on; that'll hold them together while I set them aside. Now I'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. To drill out the hole I'm going to use this small poly bit and then open it up to my final size using the step bit process. We 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 do ahead and repeat the same process on the other side. Just like that we've completed the install of the Dutton-Lainson Boat Trailer Roller Bunk Bracket part number DL21742 on our boat trailer.


Customer Reviews

Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks Parts DL21740 & DL21741 - DL21742

Average Customer Rating:  4.7 out of 5 stars   (20 Customer Reviews)

Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks

- DL21742
by:

Product was of excellent quality, Very easy to install, and worked most excellent. This is the perfect product to make life easier to load and unload your boat. 379654



- DL21742
by:

They look a little thin but we will see. I have not installed them as of yet. I hope they dont bend. 252869



- DL21742
by:

The brackets are as described but unfortunately given my trailer frame I couldn't mount my roller bunks any lower than the standard bunks. The lowest you can get these brackets is probably almost 4 inches above the frame, then you have to bolt the roller bunks on top of that. 271544



- DL21742
by:

Due to a mix up in shipping....nobody's fault really, another type of bracket was required. The exchange was done without a hassle and the proper part is ready for installation. The product is better than expected but the customer service exceeded any I have ever dealt with anywhere! 269868


Comments
Have had these installed and used for a year now....boat loads and launches with ease. Could have saved to much time and money....no more ulcers and stress!!
Austin C - 07/09/2017

25836

- DL21742
by:

5 Ft roller bunk Part DL21741 is a high quality item. It installed in minutes on existing brackets. Boat is approx 3/4” higher than on standard bunks but it shouldn’t be a problem since it rolls on/off effortlessly. I also bought new brackets Part DL21742 thinking they might allow lowering boat a little but they were same as existing brackets so I returned them which was simple. Customer service was excellent. 447243



- DL21742
by:

Got it when you said it would arrive . Looks like a well made product . Thank you 668844



- DL21742
by:

Used these as part of a full boat trailer rebuild. They were sized perfectly and of very high quality. After a year of use these are performing excellently. 641972



- DL21742
by:

made mounting easy 519199



- DL21742
by:

Great product and easy to install, supports roller bunks perfectly 471094



- DL21742
by:

used 5 & 4 ft. Deluxe roller bunks. on boat trailer, easy install and boat rolls off trailer very easily. Great product!! Boat is much easier to launch and load. 344497



- DL21742
by:

The stuff is failing wish I had not bought it 341281



- DL21742
by:

I used these brackets with the roller bunks and they made installation a breeze paired with the recommended u-bolts. The system literally went together in less than an hour with minor modifications I opted to make. I cannot wait to pick up my new boat and put them to the test. 333863



- DL21742
by:

Works great 282882



- DL21742
by:

More better than I thought. 257028



- DL21742
by:

much heavier than expected. good value. will carry huge weight 253955



- DL21742
by:

The product was just as described. In new condition and packaged in a adequate box for delivery. 234149



- DL21742
by:

Great item, great/fast service! I will remember your site for any future trailer repairs - thanks! 222481



- DL21742
by:

I purchased these about a year ago and again just a few days ago. Used these on a boat I sold and then just bought 4 to set up my buddies boat with roller bunks. Very strong and sturdy bracket, works with the roller bunks great. 222253



- DL21742
by:

The brackets for the roller bunks worked out just fine. 65149



- DL21742
by:

product was eaqsy to install on my trailer. They held the weight load of the boat excellent. Im now ready to go fishing..Thanks alot. 54037


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Ask the Experts about this Dutton-Lainson Boat Trailer Parts

  • Is a Sealant Needed Between Boat Trailer Frame and Bunk Bracket
    It is possible that what you are seeing is some sort of buffer between the trailer frame and the bracket. Oxidation can occur quicker if two different metals are attached. Adding something that repels water like dielectric grease # 11755 between the two parts can help to keep out moisture and protect the metal. It is not required but you could do it.
    view full answer...
  • Can the Boat Trailer Roller Bunk Brackets # DL21742 Be Installed on 2x6 Boards
    Yes, I spoke with my contact at Dutton-Lainson and she informed me that you can install these Boat Trailer Roller Bunk Brackets # DL21742, to a 2x6 plank. I attached a link to all the roller bunks we offer for you to check out.
    view full answer...
  • Replacement Roller Bunks for a Boat Trailer that Uses Wooden Bunks
    You could replace your wooden bunks with roller pretty easily. You would use the Boat Trailer Roller Bunk Bracket # DL21742 that you referenced with two sets of 4 foot long rollers like the part # DL21740 that is sold in pairs. The bracket can angle to match the shape of your hull so that the rollers line up properly. You can also move the brackets in or out so that they match up with a flat portion of your hull.
    view full answer...
  • Do Roller Bunk Brackets DL21742 Require 7/16" U-Bolts?
    The Boat Trailer Roller Bunk Brackets # DL21742 do require 7/16" U-bolts such as # 7163183UB. The bunk brackets are designed to be used with Roller Bunks # DL21740 or # DL21741.
    view full answer...
  • What are the Dimensions for the Boat Trailer Roller Bunk Bracket # DL21742
    I pulled a Boat Trailer Roller Bunk Bracket # DL21742 from our warehouse to get the dimensions for you. The overall length is 10-3/8 inches, the length minus the top bracket would be 10-1/16 inches. The height of the main bracket is 7/8 of an inch and the thickness plus the L-bracket is 1-1/2 inches. Check out the video I attached that shows these me taking these measurements.
    view full answer...
  • Adding Roller Bunks to Carpeted Bunks on an Escort Boat Trailer
    I recommend using the 5 foot long roller bunks # DL21741 and attach them directly to the wide side of the carpeted bunks. This will make installation easier and you will not have to worry about angling bunks and adapting brackets to existing brackets. Ideally you would need another set of rollers trimmed down to 3-feet lengths to cover the whole 8 feet of bunk boards.
    view full answer...
  • Size of U-Bolt Slots in Dutton-Lainson # DL21742 Roller Bunk Bracket for Roller Bunks DL21740/41
    The Dutton-Lainson Roller Bunk Bracket, part # DL21742, fits Dutton-Lainson Roller Bunks # DL21740 and DL21741. Four are needed to mount a pair of roller bunks. My contact at Dutton-Lainson advises that u-bolts are not specifically required to install these brackets on your boat trailer, but you certainly can use them. You can use hardware of your own preference both to attach the bunk roller to the bracket (nut, bolt and lock washer) and to attach the bracket to the wood bunks on your...
    view full answer...
  • What Roller Bunks Suitable to Replace 8-Foot Bunk Boards on Boat Trailer
    No special brackets are required to install 4-foot roller bunks # DL21740 on your boat trailer. In fact you can mount them directly to your existing wooden bunk boards. Two pairs of this roller bunk will work great on your trailer to ease loading and unloading of your v-hull boat and your winch will have a much easier time of it pulling up your boat with the reduced friction from the roller bunks. You will want to source suitable hardware, either stainless steel or galvanized, for the...
    view full answer...
  • Can Roller Bunks be Used on a Boat with an Angled Hull
    We have roller bunk brackets like the part # DL21742 which have a swivel on the top of them which can angle of the hull with bunks like the part # DL21740. I attached a picture that shows the rollers being used on a boat with an angled hull.
    view full answer...
  • Replacement Roller Availability for a Roller Bunk
    It sounds like you are looking for a replacement roller for a set of roller bunks. The part # DL203228 is a replacement roller that has a diameter of 2-1/4 inches and a width of 1-3/8 inches with a hole in the middle that is 9/16 of an inch. Without knowing what brand rollers you have it is hard to say if this would work for you or not.
    view full answer...
  • Can Roller Bunks be Added to a Lund Grand Tyee 1950 50th Anniversary Special Boat Trailer
    You can add roller bunks to your trailer. The roller bunks # DL21741 can bolt flat against the bunks you already have. The brackets are not needed unless you want to remove the bunks you have and put the rollers in their place. Then the brackets that held the original bunks would be where you would bolt the new brackets to, # DL21742. The brackets have an L-shape hook at the top with a hole in the middle. The bottom of the bunks have holes in them and you would bolt the bottom of the...
    view full answer...
  • What is the Center to Center Distance Between the Slotted Holes on Roller Bunk Bracket DL21742
    I went out to the warehouse and pulled a roller bunk bracket # DL21742 to measure the slotted hole spacing for you. The slotted holes are 1-1/4 inches apart on center. I also made a short video showing this measurement for you.
    view full answer...
  • Can Boat Trailer Roller Bunk Bracket be Mounted to an 8x4 Bunk on a Boat Trailer
    Yes, you can install the Boat Trailer Roller Bunk Bracket # DL21742 on an 8x4 bunk. You would need a total of 2 per roller bunk section. This bracket will fit 5 foot long bunks # DL21741 or 4 foot long bunks # DL21740
    view full answer...
  • Are the Boat Trailer Roller Bunk Brackets # DL21742 Plated for Corrosion Resistance in Salt Water
    Yes, the Boat Trailer Roller Bunk Brackets, # DL21742, have a zinc plated yellow chromate Tuffplate finish that is three times more corrosion resistant than standard zinc plating.
    view full answer...
  • Do the Dutton Lainson Roller Bunk Brackets Include Mounting Hardware
    The Boat Trailer Roller Bunk Bracket # DL21742 that you referenced is not sold with any mounting hardware. You will need to provide the hardware needed to install these brackets plus bunks like the 5 foot Roller Bunks part # DL21741 to your trailer.
    view full answer...
  • Can Carpeted Bunks Replace Roller Bunks on Boat Trailer to Make for Easier Launch
    Roller bunks will make what you are trying to do incredibly easy as the boat will basically want to roll off on it's own and not require you to push it off. So without knowing what length your bunks are overall you have a few options to get the best length setup. You could use a combination of 5 foot sections like part # DL21741 and 4 foot sections like part # DL21740 to get the best length possible. These even could bolt directly to your carpeted bunks for an easier install. Or we...
    view full answer...
  • Recommended Roller Bunks for Boat Trailer to Ease Launching and Loading Boat and Bunk Guides
    The best option for your boat to move better on and off your trailer is to use the Dutton-Lainson Boat Trailer Deluxe Roller Bunks # DL21741. These rollers make loading and launching your boat easy. They are available in 4 and 5 foot lengths, so I've linked a page to assist. You will also need the roller bunk brackets like # DL21742. The attached video will also help you with the installation and operation. One note is that we recommend having a rope attached to your boat when using...
    view full answer...
  • 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.
    view full answer...
  • Recommended Roller Bunks for 2020 18 Express Boat with Back Track Aluminum Trailer
    The best option in my opinion is to use the Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections - 12 Sets of 3 Rollers # DL21741 which will allow you to angle the set farther up the trailer to help you center the hull but I recommend using a keel roller like the CE Smith Deep V Keel Roller Assembly for Boat Trailers - Galvanized Steel/Black Rubber - 5" # CE10401G to help center the boat. The Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks Parts DL21740 &...
    view full answer...
  • Can Mounting Brackets On Boat Trailer For Wood Bunks Be Used To Install Roller Bunks
    If the bunk mounts on your boat trailer can be used to bolt through the bottom of the bunk roller like part # DL21740, then you should have no problem using the brackets you have. Most wooden bunk mounting brackets use a bolt that runs through the board when it is placed on end. If you do not want to replace the brackets you can simply replace the wood bunks with pressure treated wood and then mount the roller bunks like part # DL21740 on the top of the board. The DL21740 roller bunks...
    view full answer...
  • Parts Needed to Add Roller Bunks to Boat Trailer
    Probably the easiest way to mount rollers would be to use # DL21755 which would slip onto the existing wood bunks and be bolted into place. For a keel roller, I'd recommend # CE10401G and the proper u-bolt kit, depending on the size of your cross member. For a 3 inch cross member, # CE15283GA-2 would be ideal. The # DL21741 roller bunk you'd looked at would also work, but you'd need brackets like # DL21742 and u-bolts like what's mentioned above.
    view full answer...
  • Can 5 Foot Long, 3,000 Pound Capacity Roller Bunks Support a 5,000 Pound Boat
    The capacity per set of roller bunks, # DL21741, is 3,000 pounds. A 5,000 pound boat would be too heavy even though not all of the weight would be applied to all of the rollers all of the time. You would need additional support to ensure that nothing fails. Additional rollers placed side by side could be one solution. The rollers can mount directly to a flat bunk or you can use brackets, # DL21742 (4 per pair of rollers).
    view full answer...
  • How to Attach Roller Bunks # DL21741 to 6 Ft Wooden Bunks on a Boat Trailer
    You are correct, you can mount the Boat Trailer Deluxe Roller Bunks, item # DL21741, directly to the top of your existing wooden bunks. If mounted in this fashion you would not need any brackets. I would recommend stainless steel mounting screws, available at a local hardware store, to attach the roller bunks to your wooden bunks. If you wanted to remove the wooden bunks, you would need to use the Boat Trailer Roller Bunk Brackets, item # DL21742, to install the roller bunks on. I...
    view full answer...
  • Can Wood Bunks Be Replaced with Roller Bunks on Boat Trailer
    Sounds like you are looking for roller bunks to replace the wood bunks you have on your 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.
    view full answer...
  • Roller Bunks for a 1998 19ft. Carolina Skiff Boat Trailer
    You should not have any problems using 2 sets of the Deluxe Roller Bunks end to end on the bunks on your trailer. I checked out some photos of the 19 foot Carolina Skiffs online and found that the bunks are normally made from what looks like 2x4 lumber laid flat. This means that the original bunks would be about 3-1/2 inches wide, and the roller bunks, # DL21741, are 4-5/8 inches wide overall, see attached photo, so they will support the boat on a wider portion of the hull. Rollers...
    view full answer...
  • Options for Installing Dutton-Lainson Deluxe Roller Bunk # DL21741 on 1983 Mastercraft Boat Trailer
    I agree that adding roller bunks to your trailer would make loading and unloading your 1983 Mastercraft Stars and Stripes much easier. The Dutton-Lainson Boat Trailer Deluxe Roller Bunk, # DL21741, that you mentioned includes 2 - 5ft sections with a 3,000 pound weight capacity and offers universal mounts to attach either vertically or horizontally. This bunk system can be mounted flat against your current bunks and would increase the height of the bunks by approximately 2-1/2 inches....
    view full answer...
  • Mounting the Dutton-Lainson Boat Trailer Deluxe Roller Bunk on Boat Trailer
    The Dutton-Lainson Boat Trailer Deluxe Roller Bunk # DL21741 is designed to attach directly to 2 x 4 bunk boards so it will may work for your set-up, but I recommend instead to mount the roller bunks with the Roller Bunk Bracket # DL21742 and U-Bolts # CE15283GA. This will give you roller bunks that are certain to work; you can see the simplicity of how this set up will work in the accompanying photo. I've also attached links to video reviews of these parts for you to take a look at.
    view full answer...
  • 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...

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Info for this part was:

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Video Edited:
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Updated by:
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