Rebuild Master Tech (RMT) started in 2011 as a side project in a successful Mercedes repair shop. One day, a customer handed us a Bentley strut to rebuild, and we realized there was a real demand for it. By 2015, RMT became its own company, and we’ve been shaking up the self-leveling suspension world ever since!
We’ve pioneered rebuilds for Bentley struts, Jeep & RAM suspension compressors, Mercedes W218 front struts, and more—always pushing the limits of what’s possible. Check out our full story on the About Us page!
First, what’s a Core? In the rebuilding world, a core is just the old part being replaced by a rebuilt one. It’s the backbone of our business—without cores, we wouldn’t be able to restore and recycle parts, keeping things eco-friendly and Made in the USA!
A core deposit is a refundable charge that ensures we get the old part back. Once you return your core, and after it has been quality checked, you’ll get your deposit back within 14 business days—simple as that! ♻️
IFR stands for In For Rebuild—it’s our way of saying a part is sent in for rebuilding. This service can be added to any rebuildable unit, either by choice or when we don’t have cores available for exchange.
We offer two IFR options:
Right here in sunny Florida in the United States! ☀️ All our rebuilt parts are restored in-house using top-quality components sourced from the USA and around the world. We’re all about delivering the best rebuilt parts for a wide range of respected makes and models!
Anything that wears out over time! This includes (but isn’t limited to) air bag bladders, O-rings, seals, dryer silica, bushings, ball joints, mounting hardware, valves, and more. If it breaks down, we rebuild it!
For a step-by-step guide on returning your core, check out our Core Return page. We’ve got detailed instructions for both U.S. and international customers!
To start a warranty claim, visit our Warranty Policy Page. You'll find all the details along with a link to our warranty claim form. Once submitted, our warranty team will reach out within 1 business day with your options.
Nope! All RMT suspension parts are built to match OEM specs, so you won’t notice any difference in ride quality. No fake resistors or gimmicks—every solenoid functions as intended. And for new parts, we stick to the original spring rate and load capabilities, just like the manufacturer designed.
On average, they should last 6 to 10 years or between 80,000 to 100,000 miles. However, lifespan depends on many different factors like weather, storage, driving conditions, weight loads, off-road use, and more.
Over time, seals and rubber air bags dry out and crack. Compressors tend to fail due to leaky air springs or exposure to water and mud. That said, the computer and height sensors usually last the life of the vehicle.
Not necessarily, but it’s a best practice! While recalibration isn’t required, we highly recommend doing it—especially if you run into any issues right after installation. Sometimes, a simple recalibration can solve the problem.
Most vehicles require a car-specific scanner for this process. Some over-the-counter scanners might work, but a manufacturer-specific scanner will always get the job done!
Car sides are always determined as if you’re sitting inside, facing forward. So, the left side is to your left, and the right side is to your right.
In most of Europe and the U.S., the driver’s side is on the left. But in countries like the UK, Ireland, and others that drive on the left side of the road, the driver sits on the right, and the passenger is on the left.
A warning light on the dashboard is often the first sign. You might also notice the car isn’t leveling properly or sitting at the wrong height.
Here are some common symptoms and possible causes:
Leaks can cause the compressor to overwork and burn out—use a soap and water solution to check for them. Fixing leaks early helps prevent future compressor failures. NOTE: This is just a general guide, so for a proper diagnosis, consult an ASE-certified technician.
For certain vehicles like the Jeep Grand Cherokee, RAM 1500, Hyundai Equus, Porsche Panamera, and others, the manufacturer requires refilling the system with nitrogen. While they call it a "closed" system, it’s actually a hybrid system that depends on nitrogen in the tank.
If not refilled, you may experience issues like:
If your system requires nitrogen, we strongly recommend refilling it and recalibrating the level sensors. All OE car dealerships should be able perform this service, and some independent shops may as well—just check if they have a nitrogen tank and tools to do it.
We also offer a tool to refill the system yourself with the appropriate tools and certification.