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Drotto Bunk Trailer Install

Video of the Drotto Bunk Trailer Install .

In this Drotto Bunk Trailer Install video we demonstrate how to install the Drotto boat latch on a bunk trailer. The Drotto boat latch is designed to replace the bow roller of your bunk trailer or roller trailer. There are many models and styles and variations of bow roller setups. Our Drotto boat latch is designed to replace your bow roller according to size. The 3″ model replaces your 3″ bow roller and the 3 3/4″ model is designed to replace a bow roller between 3 3/4″ and 4″ ( just add spacers or washers for larger rollers). The Drotto Bunk Trailer Install is simple in most cases. See below for further details on the Drotto Bunk Trailer Install process.

Step 1 

Locate the bow roller on your trailer. Here are only a few examples of bow roller setups below.

There are a number of different trailers. BUNK trailers and ROLLER trailers. The Drotto boat latch works on both styles of trailers. There are also a number of different bow rollers. The Drotto boat latch is designed to fit on the 3″, 3 3/4″ – 4″. refer to the “Drotto Boat Latch Sizes page” to learn how to measure your bow roller.

trailer bow roller
Drotto boat latch bumper replacement
bow-roller-ex

Step 2

Release the boat into the water. It is hard to move a boat on a bunk trailer, therefore we suggest simply launching the boat into the water.

Bunk trailer installation Drotto

Step 3 

Remove the single bolt holding the front roller on the trailer and remove the roller. Once roller is removed, replace it with the latch. Tighten the bolt snug, but not fully tight yet. Keep slightly loose so the latch can move just a little.

drotto remove roller
drotto installation bunk

Step 4 

Drive the boat very slowly back up onto the trailer or crank the boat back onto the trailer with your winch. You will then hear the click. Once you hear the click you know the latch has secured and locked the boat to the trailer.

drive on drotto latch

Step 5 

Simply snug up the bolt that secures the latch. You DO NOT want it extremely tight, It should be able to pivot slightly with the boat.

tighten drotto latch

Double Roller Bow Stop Install

drotto compatability

Here is a good visual if you have a double roller bow stop. In this version, simply remove the top roller, install the latch in place of the top roller and adjust the winch arm to line up the bow eye with the latching system. Another option is to remove the double bow stop completely and install the latch directly to the winch post.

Drotto Bunk Trailer Install Overview

It’s that easy to install the Drotto boat latch. This entire install process can be done in just a few minutes. If you have any questions concerning a Drotto Bunk Trailer Install of the boat2trailer product please feel free to email info@boat2trailer.com or refer to our other installation videos.
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Drotto Boat Latch Tips



Richard Mickelson
Richard Mickelson
02:29 30 Jul 20
Al Lindner
Al Lindner
20:17 28 Jul 20
Brian Craft
Brian Craft
11:54 28 Jul 20
Daniel Lyons
Daniel Lyons
22:15 27 Jul 20
This is the BEST addition to my Ranger Trailer bar none! Given I am turning 76 this year, I don't have the energy I use to have and launching and loading my boat had gotten to be somewhat of a chore. I have a 20ft Ranger loaded to the "gills" which means it is a handful at the ramp. The Boat2Trailer Boat Latch has really been a time savor, as well as, spared me from expending a great deal of energy (best part of the equation). It only took me 45 minutes to Install the item. The video on YouTube was a big help.....
Steven Stacy
Steven Stacy
03:56 29 Jun 20
Works like a dream. As others have mentioned it pulled my Competitor 165 forward a couple of inches but I loosened the winch stand and slid it forward to compensate.
Michael Hatton
Michael Hatton
23:48 28 Jun 20
This a 5 star just on customer service alone. I placed my order late on Saturday afternoon and had a question afterwards. I sent email later that night and had a positive response back on Sunday morning!! WHO DOES THAT?!? I'm counting on the latch working just as well !
Tom Johansen
Tom Johansen
21:50 26 Jun 20
Outstanding product, works as advertised
Rodney Puckett
Rodney Puckett
13:48 24 Jun 20
I fish with my 9 year old son 99% of the time so it is just me launching and loading. However, I had rotator cuff surgery on my dominant arm in March. Trying to reach over and hook up is extremely painful for me and trying to do it standing to the trailer is impossible with my range of motion. I showed this to my wife and she ordered it for Father's Day.

I took the boat out yesterday and installed it. I have a Phoenix Bass Boat with a 4" roller so we had to go with the 3 3/4" version and I added washers to each side so it was centered. The install went smooth and took about 10 minutes. Just as side note if you have a 4" roller you will likely need to used the same bolt that is currently on your trailer's roller. I caught this before the install so it was not a big deal. I got the master lock so the bolt that came with it would not work for sure.

Yesterday was a windy day once we got back from fishing we had some water skiers and strong wind making for challenging loading conditions and this think worked like a champ. It will cut minutes off of launching and loading you boat.
Roy Mccombs
Roy Mccombs
20:26 20 Jun 20
I absolutely love this device. I have had both knees replaced and it was very hard for me to go fishing by myself but this device has given me the freedom I was looking for. I have friends that are talking about getting this device. Thank you Boat2Trailer Drotto Boat Latch.
Perry Arima
Perry Arima
14:20 17 Jun 20
Works awesome on my Alumacraft
Mark Ross
Mark Ross
14:13 17 Jun 20
Only thing that could make it easier to loadout would be a chauffeur! Makes loading out easy peasy.
Larry Schulze
Larry Schulze
13:41 17 Jun 20
Chris Palmer
Chris Palmer
17:40 15 Jun 20
Unbelievably simple, no stress, boat launching and loading!! Should be included with every trailer.
Fred DeMars
Fred DeMars
13:14 11 Jun 20
The latch works as advertised. Would have given it five stars but it set my boat back about 4 inches on the trailer (Lund boat & shorelander trailer). I will have to figure out a bracket for rear tie downs. I have a swing away hitch so can not move my front post foreward. Perhaps Drotto could figure that out & and market them.
Lee Holt
Lee Holt
10:39 11 Jun 20
Awesome Product!! Quality built! Highly recommend