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

• How to Install Boat Keel Rollers When Replacing V Bunks on Trailer
  It looks like you are on the right track. I would use the Universal Roller Brackets, # MBSPB, that you mentioned along with a 8 inch Long Keel Roller, # DL21712, a 5/8 inch Steel Shaft, and two pal nuts # CE10801. All of this is dependent on your trailer having and 8 inch area that the brackets can be installed in and adjusted for the roller to contact the keel of the boat. If you would like to send photos of the boat trailer, I would be glad to make a more specific recommendation.
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• What Are The Dimensions for a Dutton-Lainson Keel Roller
  The Dutton-Lainson Keel Roller # DL21712 measurement on end is 3-1/2" and the middle measures at 2-1/2". I attached a video below that discusses the Keel Roller further.
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• Availability of 7-1/2-inch-long V-Shaped Replacement Keel Roller for Boat Trailer
  My contact at Yates Rubber advises that a nominal 8-inch keel roller does not measure exactly 8 inches; typically they are slightly smaller than the specified size, much the way a piece of 2 x 4 lumber is not exactly 2-inches by 4-inches. I took measurements of several replacement rollers and confirmed that the 8-inch size generally measures 7-5/16 (just the roller itself) and 7-3/4 inches including the nylon bushings on each end. For example, the Dutton-Lainson # DL21712 is a nominal...
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• Keel Roller Sizing for a 1989 Calkins Boat Trailer
  If the brackets your rollers mount to are adjustable, then diameter would not matter as you could compensate with the bracket position. If the brackets are not adjustable, a half inch or so in diameter change would not matter. If you were to use rollers with a significant size difference, then the winch may improperly pull the boat on the trailer. You may be able to adjust your winch hook position on the boat to fix this. The 8 inch Dutton-Lainson Rollers you were looking at, part # DL21712,...
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• Recommend Keel Roller Setup For 14 Foot Aluminum Boat
  I would recommend using the Universal Roller Brackets, # MBSPB, this will mount near the front of the trailer. Then you can use the 8 Inch Keel Roller, # DL21712, and a 5/8 inch Steel Shaft like part # CE10727A that includes two pal nuts You will need to measure your trailer to see if you have space to mount the brackets. You will need an 8 inch area that the brackets can be installed in and adjusted for the roller to contact the keel of the boat.
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• How to Remove a Pal Nut
  A pal nut is not re-usable, so there is no need to be overly gentle when removing it. Simply grab the nut with a pair of pliers and bend it off. Once you apply a bit of pressure, the nut will bend which will allow you to easily remove it. We offer replacement pal nuts for a 5/8 inch roller shaft, part # CE10801.
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• Bow Roller for 14 Foot Row Boat Trailer
  The Dutton-Lainson Roller you referenced, part # DL21712 would work fine for you, but the Redline Bow Roller, part # 404800 would probably be a better fit. You would also need the mounting brackets, part # MBSPB and a shaft part # CE10727A.
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• Availability Of 8" Long Keel Roller That Fits 3/4" Shaft
  Hello RJ, thanks for reaching out. We do have 8" long keel rollers like part # DL21712 but they are all for a 5/8" shaft. I'm sorry to say we don't have anything for a 3/4" shaft so it sounds like you'll have to retrofit. We do have the 8" roller as a full assembly part # CE10403G which comes with the roller, shaft and bracket. That's what I would lean towards for an alternative. You'd just need to source some 1/2" or 7/16" fasteners. I've included a picture with some dimensions for...
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• 8 inch Keel Roller and Bracket Recommendation
  Sounds like you are looking for the part # CE10403G. The slotted mounting holes would allow it to be mounted at various heights to match what your trailer needs. The slots of the bracket are 6 inches apart as well. I attached a review video for the roller for you to check out as well.
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