278030 - Miller Trailer Tire Assembly ST175/80R-13 Load Range D

Reliable Transport for Your Welding Equipment

When your welding operations require mobility, the condition of your trailer's running gear is just as critical as the welder itself. The Miller 278030 Tire, Trailer w/ Rim (ST175/80R-13 LRD) is a genuine replacement assembly designed to keep your Miller welding trailer road-ready and safe. This is a complete unit featuring a heavy-duty tire pre-mounted on a steel rim, allowing for a quick and straightforward swap without the need for specialized tire mounting tools. Whether you are dealing with a flat, dry rot, or general wear and tear, this assembly restores your trailer's capability to transport heavy equipment securely.

The tire specifications are tailored for the demands of towing. It features a size of ST175/80R-13, where the "ST" stands for Special Trailer, indicating it is engineered with stiffer sidewalls to reduce trailer sway and handle static loads better than passenger car tires. The "R" denotes a radial construction, which provides lower rolling resistance, better heat dissipation, and a smoother ride compared to bias-ply tires. This is particularly beneficial for welders who travel long distances on highways to reach job sites, ensuring the trailer tracks true and stable behind the tow vehicle.

Safety is a primary concern when hauling heavy engine-driven welders. This tire boasts a Load Range D (LRD) rating. This high load rating means the tire is constructed to support significant weight at higher inflation pressures, making it perfectly suited for the substantial mass of a Miller Bobcat, Trailblazer, or Big Blue welder plus fuel and accessories. Using a tire with an insufficient load rating can lead to dangerous blowouts and accidents. By choosing this genuine Miller part, you also ensure that the rim's bolt pattern and offset are perfectly matched to your trailer's axle, eliminating fitment guesswork and ensuring reliable performance mile after mile.