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Expert Answers about Toyota Boat Trailer Parts


  • Troubleshooting a Boat That Wants to Load Crookedly
  • Typically, if you are loading a boat and is not wanting to load squarely it is because your trailer is backed too deep into the water. That is the case most of the time with this issue, usually it takes trial and error to determine exactly how much of your trailer should be underwater to find the sweet spot. I would recommend using part of the trailer (such as a fender) as a reference point for how much should be underwater to find the sweet spot. Another solution people have is to switch...
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  • Troubleshooting Tandem Axle Boat Trailer Equalizer Contacting Frame on Rear Spring
  • There are a few things I would recommend checking before you start swapping parts. First will be to check the weight distribution with the boat on the trailer. Typically when the rear is hitting the frame like you have the weight may be to much on the rear of the trailer and the boat should be moved forward or gear on the boat moved to better evenly distribute the weight across the entire trailer. Second I would ensure that the boat trailer is pulling level when connected to the tow...
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  • Boat Trailer Surge Disc Brakes Dont Last Long
  • If there are brakes installed on your boat trailer (or any trailer for that matter) then it is always best to have brakes installed on all of the axles. I believe that you have diagnosed your problem exactly and that your one set of brakes is having to work extra hard so they are wearing out quickly. If you could let me know what the weight capacity is of your axles along with the bolt pattern of your wheels, inner bearing, outer bearing, and grease seal part numbers, I can see what we...
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  • Why are New Tires on Boat Trailer Showing Excessive Wear
  • There are a variety of possible reasons why the new tires on your boat trailer are already showing extensive wear. If by the inside and out, you are referring to the outside edge of the treads and not the side walls, then the most common cause of this are tires that are not properly inflated. You want to make sure the tires on your trailer are always inflated to the maximum psi as listed on the tire's sidewall. If the wear you mentioned is instead on the actual side walls of the tire,...
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  • Boat Trailer Suspension is Making a Loud Popping Noise
  • If your boat trailer is making a continuous popping noise that seems to be coming from the suspension then it really could be anything involved in your suspension. The best way to find out what is the culprit is to simply do an inspection of your trailer suspension. Parts could be binding or they could be old or worn and in need of replacement. If everything seems to be in good working order it may be worth jacking your trailer up and taking the suspension apart so that you can check...
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  • Securing CE Smith I-Beam Clamps for Boat Trailers That keep Falling Off
  • The CE Smith I-Beam Clamps for Boat Trailers, part # CE27682A are designed for trailer that have an I-Beam 2-1/2 to 4-1/2 inches wide. It seems odd that one side stays on and the other side keeps falling off on your trailer. I do not recommend using an impact wrench to tighten the clamps as that could cause damage to the clamps or the boat frame. You might try using a spacer on the bolt in between the lower part of the clamps. I have attached a photo of the # CE27682A. Adding a spacer...
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  • Boat Trailer Lights Sometimes Work and Sometimes Do Not When Connected to 2010 Ford F-150
  • It sounds like the connector on your truck may be corroded or there is a loose connection from the vehicle side connector to the boat trailer. I would begin by checking the vehicle and trailer side connector for corrosion, if there is corrosion you will need to replace the connector. Next, you will want to check to make sure all the lights on the trailer have a good ground to a clean metal surface. If you are using a plastic license plate holder, this make be preventing the left light...
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  • Troubleshooting Surge Brakes Activating when Boat Trailer is being Reversed
  • What you are describing is a problem most surge brake setups have that do not have a reverse lockout feature. Since you said a solenoid problem it sounds like you have an electric reverse lockout solenoid like the part # T4748800 that is not working. You could try checking the reverse light circuit of your trailer connector to determine if the problem is there. There might be corrosion in the connector that is preventing the circuit from working. I would use a circuit tester like our part...
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  • Can Single Transom Strap Secure Lighter Weight Aluminum Trailer
  • Ideally you'd want to fix your setup so that both transom straps can be used. In the meantime running a single transom strap would be your best option. While a strap like the part # IMF14220 would have the needed capacity for what you are wanting to do I'd be worried the single attachment point on both the trailer and the boat wouldn't have the capacity.
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  • One Wheel on a Boat Trailer Locks Up and Trailer Actuator is Leaking Brake Fluid
  • It sounds like you have a leak in the system either in a brake line or at the actual wheel cylinder. If this is the case, you may not have to replace the entire hub or brake assembly, just the part that is leaking. A leak can also draw air into the system and cause the brakes to lock. My theory is that it is the wheel cylinder on that one side. After you inspect the brakes and find the culprit, make sure that you bleed the braking system. There are vacuum type systems that you can use...
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  • Boat Trailer Equalizer Flips with Little to No Weight on the Trailer
  • What you are experiencing is common on tandem axle trailers when little or no weight is on them. The weight compresses the suspension and would not allow this to happen, or at least not as easily. If you were to use the E-Z Flex Equalizers # K71-655-00 they would still pivot like stock equalizers though maybe not to the same degree or frequency. They can be used on boat trailers. It appears that you might actually benefit more from slightly longer leaf springs. When everything is set up...
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  • Boat Tires are Wearing on the Inside
  • When you are getting uneven wear on your tires and the part that is wearing more is on the inside then that hints towards the axle being overloaded. Axles have a natural arch in them that arches up so that when they are under a load they are horizontal and you get even wear on your tires. Overloading your axle would mean that it is arching towards the ground some and would cause that inside wear. I recommend checking the weight capacity of your axle (can be found stamped in the middle...
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  • Tail Lights on 1992 Ford F-150 Stay On When Connected To Boat Trailer With 7-Way to 5-Flat Adapter
  • If I understand correctly, the taillights on your 1992 Ford F-150 stay on when you connect your boat trailer to your truck using a 7-way to 5-flat adapter and when the brakes are applied the vehicle taillights go out. It sounds to me like power is somehow feeding back to the taillight circuits on your truck and there is a short somewhere. To troubleshoot this issue, I would start at the 7-pin connector on your truck with the adapter and boat trailer disconnected. Make sure the connector...
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  • Who is the Manufacturer of the Trailer Wiring Harness Part # 118334 Hopkins Harness Keeps Shorting
  • The manufacturer of the T-One Vehicle Wiring Harness, # 118334, is Tow Ready. You may get better service life from the Tow Ready wiring harness, but in my experience, converters short out due to wiring issues on the trailer. Many boat owners have trouble with converters shorting out because the tail lights short out when backing their boats into the water. The solution in this case is to unplug the trailer before launching the boat, and to leave the trailer unplugged when loading the...
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  • Centering Boat On Trailer With Wobble Rollers
  • The keel roller will help to center your boat as the wobble rollers you have allow the boat to sit slightly to one side or the other. We do offer the CE Smith Keel Roller # CE29505 which has a self centering design to help guide your boat to the center of the trailer. It is also a non-marring PVC construction which is more durable than the rubber rollers you have. We also have the Ark Ezi-Guides Self-Aligning Boat Trailer Loading System # AR84FR which is designed for power boats from...
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  • Using a 5 to 7-Way Trailer Connector Adapter on Boat Trailer With Hydraulic Coupler
  • Typically, boat trailers have hydraulic brakes that are actuated by a hydraulic brake coupler that compresses when the tow vehicle brakes, not electric brakes. As the coupler compresses, it forces the hydraulic fluid through the brake lines, actuating the trailer brakes. If your boat trailer has this hydraulic coupler, the extra wire on the 5 pole connector is there to release the brakes when the tow vehicle is placed into reverse, so the trailer can move in reverse. You will want to...
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  • Troubleshooting Non-Electric Drum Brakes on an EZ Loader Trailer That Lock Up Moving Forward
  • It sounds like you have surge brakes on your EZ Loader Duel axle trailer for your 1989 Bayliner. If your brakes are locking up when trying to move forward, it sounds like there is a mechanical error happening and it is most likely happening in the coupler. Something like a sticking piston in the wheel cylinder keeping pressure on the brake shoes or a plunger in the master cylinder that is not releasing. There is a shock like the # T2336200 in the coupler to help the coupler return to position...
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  • Troubleshooting Tire Problems on a Heritage Boat Trailer with 2005 Crownline 240 EX
  • I would start troubleshooting with the capacity of your trailer axles and the total weight of your boat, trailer and contents when loaded and ready to travel. Make sure the fuel is topped off and all your normal contents are in the boat. Take the loaded rig to a local scale and have it weighed. When weighing, unhitch the boat trailer on the scale and make sure the vehicle is pulled off of the scale. Once you have the loaded weight of the boat you can verify that the trailer axle capacities...
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  • Replacement 10 inch Trailer Brake Assemblies for Bayliner Boat Trailer
  • For ten inch trailer brake assemblies we have the etrailer pat # AKUBRK-35R for the right hand side and part # AKUBRK-35L for the left hand side. Regardless of what brand assemblies you have installed currently these will replace them and work great.
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  • Why Are Boat Trailer Taillights Not Functioning With 4-Way to 7-Way Adapter on an RV
  • One of two things are happening. Either the 7-way on your RV isn't wired right and needs to be addressed or the grounds of the light assemblies on your trailer aren't sufficient. This is the most common problem that causes the issues you are describing. I would check the ground for each light assembly and the main ground strap that runs from the trailer connector to the trailer frame. Make sure they are securely attached to a clean metal surface. If that doesn't fix the problem you will...
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