The Original Seyller Body was built outside on a concrete pad almost 30 years ago. Since then technologies have developed and new product lines have launched but the guiding principle through it all has been build them to last. With over 3,000 units on the road and in the fields the Seyller design has proven itself over the decades. We've been asked many times about how we know that Seyller Bodies provide superior durability and the answer is simple. Many of the first Seyller designed service body are still in the field after 30 years doing the same job today as when they began. Maintaining quality like this can become a challenge for some companies but at OSB we know the best way to insure quality is to put your name on it.