Best Waterproof Boat Trailer Side Marker Lights

Posted by Author David Lee

How To Troubleshoot and Fix Boat Trailer Lights that Don't Work

You plug in your trailer lights every time to test them before you tow your boat, right? What happens if they don't blink when they're supposed to? Or, worse, they blink when they're not supposed to. We're going to show you how to troubleshoot them and fix what's wrong. First, you want to physically disconnect the tow vehicle from the trailer, including the chains. Otherwise you may be masking a ground problem, which we'll get to in a minute. The next step is to plug a tow vehicle tester light into your vehicle's connector. You can get these for as little as $10 online. If the tester shows a problem, you know it's with the vehicle, not with the trailer. Note the trailer wire color code. White is ground. Brown is the taillights. Green in the right turn and brake light. You can remember that green has an "r" in it for right. Yellow is the left turn and brake light. And you can remember that because yellow has an "l" in it for left. If the tester says the vehicle's lights are OK, the problem is with the trailer. But before we go any further, we're going to clean these contacts off with a little bit of emery board or sandpaper. And we're going to squirt some contact cleaner. And finally, apply a little dielectric grease. Now we'll try it again. Still no luck? Might just be a bulb burned out. We're going to remove the bulb, clean these contacts in here with the back of a pencil eraser or some sandpaper, spray with a little contact cleaner. We'll put a little dielectric grease on the back of the new bulb, put it back in, and try it. If you still can't get the lights to come on, especially if it's just one side of the trailer, it may be a break in the wiring. Follow each wire and look for a break or damage. On my trailer, the wires run inside the frame, and we can't see every inch of it. If you can't find a break in the wire or you're not sure, you're going to need to run a jumper wire. What we've done, the other end of this wire is connected to the green wire at the front of the trailer. We've connected this to one end of our meter, the other end of the meter is here. We'll check for continuity on this green wire. And there we go. We have continuity, so we know this wire is good. You can check each wire the same way until you find a wire that's not good. If you find a break in the wire, cut it and use a heat-shrink connector to repair it. If the lights are dim or there's other strange stuff going on, like the brake lights flashing when the turn signal is on or they only work sometimes, that may be a ground problem. We're going to take the ground strap off here and see if that fixes it. Find the ground screw on the trailer. It's almost always a white wire. We're going to take it off, clean it with a little sandpaper or emery board, spray it with some contact cleaner, and put a little dielectric grease for good contact. So now the next time your trailer lights act up you'll know what to do, and you won't have to pay someone else to do it.

Trailer Lights Brands

The market is dominated by some manufacturers such as: MaxxHaul, Nilight, Partsam, CZC Auto, iBrightstar.

12V LED Red Submersible Boat Trailer Lights Kit [MaxxHaul]

Ideal for Long-Lasting High Visibility. The MaxxHaul LED Trailer Light Kit is an excellent all-around pick for bright, reliable, and long-lasting LED trailer lights. This product is a complete kit that’ll help you mount, wire, and begin using a new set of lights — and you can easily use it to bring your trailer up to DOT standards. You’ll get two amber clearance lights along with stop, tail, and turn signal lights. A wiring harness is also included for easy installation. Each of the trailer lights includes highly visible LED light bulbs, which last longer than standard incandescent light bulbs. The exterior housing of each LED trailer light is built to resist corrosion, helping you keep your trailer lighted even in weather and unpredictable road conditions.

Marker Boat or Jet Ski Trailer Light [Partsam]

Affordable Lights with a Universal Fit. The Partsam Red LED Light Bar can illuminate the rear of your trailer with an identification light bar that offers a universal fit. Made to fit travel trailers, boat trailers, RVs, and even cargo trailers, this bar of LED trailer lights offers a handy, highly visible set of lights. Made with a stainless steel black base and three LED lights, these trailer lights mount easily with a set of included screws. It’s coated with black powder to prevent rust and corrosion over time, and the light housing is rated IP65 waterproof. The entire light bar is sealed to protect against common road issues like water, snow, dirt, and dust — you’ll be able to drive and haul without worrying about damage or lost functionality.

12V Submersible Waterproof LED Boat Trailer Tail Lights Kit [CZC Auto]

Multi-Function Lights Designed for Any Conditions. The CZC Auto LED Trailer Tail Light Kit provides you with everything you need to increase your trailer’s visibility, and it offers benefits that other lighting kits do not. Designed for use on trailers that are under 80 inches, this LED light set is an excellent premium addition. You’ll get both left and right LED trailer tail lights with seven different functions — they can work as stop, turn, and tail lights as well as a rear reflector and side reflector lights, a side marker light, or a license plate light. The lights feature LED bulbs, which offer superior visibility and a longer lifespan. These LED trailer lights can be submerged underwater, making them a great choice for boat trailers. The lights are made with 18 gauge 100 percent pure copper wiring, which also adds underwater functionality.

Waterproof Square Boat or Jet Ski Trailer Lights Kit [iBrightstar]

Bright LED Lights with Weather Protection. The iBrightstar Square Trailer Lights are excellent for increasing your trailer’s visibility and giving you versatility when hauling your trailer. These LED trailer lights come in a set of two and feature high brightness LED diodes that can work as taillights, side reflectors, side markers, or license plate illuminators. They’re suitable for use on all kinds of trailers measuring under 80 inches. These LED trailer lights won’t cause problems even in bad weather — they’re made with ultrasonic welding technology and have an IP68 waterproof rating, meaning they can survive rain, water from the road, and other wet conditions. Easy to install, you’ll get up to 30,000 hours of light use out of these bright LED trailer lights. is a source where the post Waterproof Boat Trailer Side Marker Lights appeared first.

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