About Us
FDX – A Fisher Company, formerly Gra-Mag Truck Interior Systems, continues a long-standing tradition of quality craftsmanship and dependable service in the heavy-truck industry. Our team is committed to offering seating solutions that support the people behind the wheel while delivering the durability and performance our customers expect. Backed by the strength and manufacturing expertise of Fisher Dynamics, FDX is focused on innovation, operational excellence, and building lasting partnerships for the road ahead.
Our Partners
The Story
Formerly known as Gra-Mag, FDX – A Fisher Company represents the next chapter in a long-standing tradition of quality, innovation, and customer commitment in the heavy-truck interior systems industry.
FDX is proudly backed by Fisher Dynamics, a third-generation, family-owned company with more than 100 years of manufacturing excellence. Renowned for its leadership in the automotive industry, Fisher Dynamics is expanding its presence in the heavy-truck sector, bringing additional strength, resources, and expertise to our organization.
This partnership is a natural evolution. Fisher Dynamics has been a valued supplier and trusted partner to Gra-Mag for many years, creating a strong alignment built on shared values, operational excellence, and a commitment to customer success.
While our name has changed, our mission remains the same: delivering high-quality products, dependable service, and innovative solutions our customers can rely on. With the support of Fisher Dynamics, FDX is positioned to provide enhanced manufacturing capabilities, stronger supply chain performance, and continued growth to better serve our customers for years to come.
Our Certifications
Recognized industry certifications demonstrate FDX’s dedication to quality, operational excellence, and customer satisfaction.
PACCAR Supplier Performance Management (SPM) Masters
IATF 16949-2016 Certified
Why Choose
FDX for Semi-Truck Seats?
Built for Comfort and Durability
Your comfort matters, especially when you spend long hours on the road. Our semi-truck seats are engineered with advanced air suspension seat technology to minimize vibrations and maximize ergonomic support. With universal risers designed to fit virtually any truck, we offer seating solutions tailored to your needs.
Trusted by Drivers and Fleets
We’ve been a trusted partner in the North American trucking industry since 1998, serving both individual drivers and large fleets. Whether you’re upgrading with semi-truck seats for sale or maintaining your rig with aftermarket semi-truck parts, FDX delivers reliable products backed by expert support.
Innovation that Moves You
Our exclusive SteadyRide™ air ride seats use Magnetorheological (MR) Fluid actuators to reduce whole-body vibrations by up to 67%. The result is state-of-the-art performance and the most comfortable semi-truck seat on the road today.
Choose a Truck Seat
Personalizing your heavy-duty truck seat can further enhance your driving comfort. FDX offers a range of customization options, including:
Aftermarket Air Ride Seat
Our Aftermarket Air Ride Seat delivers dependable comfort and performance comparable to the standard air suspension systems found in most trucks on the road today. Designed for durability and everyday support, it provides a smooth and reliable ride for drivers across a wide range of applications.
SteadyRide Air Ride Seat
The SteadyRide Air Ride Seat builds upon traditional air suspension technology with advanced Magnetorheological (MR) Fluid technology integrated into the suspension system. This innovative design helps reduce over-the-road vibrations by up to 67%, creating a smoother ride, reducing driver fatigue, and enhancing overall comfort during long hauls.
Both seat options come equipped with universal risers designed to fit all level-floor base cabs, allowing for straightforward installation across a wide range of truck applications.
FDX seats are engineered to improve ride quality and reduce driver fatigue during long hours on the road. Our advanced air suspension systems help absorb road shock and vibration while providing dependable ergonomic support mile after mile.
The SteadyRide Air Ride Seat takes comfort even further with integrated Magnetorheological (MR) Fluid technology that helps reduce over-the-road vibrations by up to 67% for a smoother, more controlled ride experience.
Our seating systems are engineered to provide customizable support for drivers of all sizes and driving preferences. Adjustable lumbar support, recline positioning, and ergonomic seat controls allow for a more personalized fit, helping reduce strain and improve overall comfort during extended time behind the wheel. All FDX seats also come equipped with dual adjustable armrests, shipped uninstalled to accommodate individual customer preference.
FDX seats are available in genuine leather or durable cloth upholstery options designed to deliver both long-lasting performance and a professional appearance. Available finishes include two-tone gray leather, black leather, and black cloth, with black, gray, or tan accent stitching options available on black material options. *Cloth upholstery and tan stitching are not available on mid-back models.
Truck Seat Technology
FDX has designed and developed an ergonomic truck seat system that takes advantage of Haptic perception by positioning feature controls in the optimal ergonomic location on the seat. Our truck seat technology gives you ample control over your seat’s positioning. The haptic perception brings a new level of intuition and comfort to make those adjustments.
Let’s take a look at what our clients think
This company’s care and support of the end user is far beyond my expectations. Keep up the good work in making superior seats and providing exceptional customer service all the way down to the 1 guy riding in it.”
Our Blog
Real-world tips and insights to help you stay comfortable on the road and keep your rig running right.
