We love your feedback! Many of you have requested our gearcase adapters, and we are delighted to now offer them as a set of their own. These adapters are versatile; they can be used not only for water and fluids but also for compressed air and gas. 

Their simple design makes them easy to use — literally a second to connect or disconnect. Just insert your tubing through the collet, then through the o-ring, and into the body of the fitting. These three steps ensure a water-tight seal. 

 

We offer these brass gearcase adapters separately so you can have extra fittings for any situation. They come in handy for helping out fellow boaters as well. We strive to make our products conveniently available to you, our valued customers. 

Why Choose Marine Tech Adapters? 

Our adapters are tight-fitting to ensure a leak-free transfer of oil to and from your lower unit. The ¼-inch hose barb fitting fits snugly to the three quick-connect adapters. These adapters work like a dream to transfer fluids and avoid messy spills. The fittings are also highly durable and will hold up to the test of time. 

Even better, no matter the brand of your equipment, we’ve got you covered! We know every boat owner has their favorite brand. That’s why we’ve made sure these adapters fit most Chrysler, Evinrude, Force, Johnson, Mariner, and Mercury outboards, as well as most Suzuki, Tohatsu, and Yamaha lower units. 

We offer products that appeal to all of our Marine Tech customers! 

Check Out the Whole Kit! 

Changing your gearcase oil frequently is vital to keeping your boat running smoothly. We all know that oil breaks down and degrades over time. After all, boat motors work hard and need special attention to ensure they continue to perform well. 

With that in mind, we also offer our Gearcase Pressure/Vacuum Testing Kit, which includes the gearcase adapters mentioned above. It’s important to pressure or vacuum test your gearcase from time to time. Our testing kit comes with everything you need to ensure a water-tight seal. 

Instead of just changing your gearcase oil each season, this kit checks for problems before they occur, potentially saving you from expensive repair bills due to water damage. Our kit will pay for itself by alerting you to problems before they happen. How great is that?

The Marine Tech Promise 

As always, our brass gearcase adapters and the full pressure/vacuum testing kit they’re used in are designed to keep your boat maintenance simple, efficient, and cost-effective. We continue to work hard to bring you the most versatile and innovative maintenance tools and supplies that we know you’ll need in your collection. 

Marine Tech always backs up its products by offering a lifetime warranty on all our tools, so you can feel confident when buying from us. 

More Tools From Marine Tech: 

Here are some additional tool offerings by Marine Tech that we think you’ll find useful: