About International Dyno

International Dyno was started to serve the marine engine industry with dependable, real-world testing solutions. From day one, the company has focused on helping marine technicians and engine professionals diagnose issues accurately, improve performance, and verify repairs with confidence.

International Dyno manufactures marine dynamometers and related engine testing equipment designed for outboard and I/O applications. These systems are built to provide controlled load testing that closely simulates on-the-water operation, giving shops and service teams practical data they can trust.

With decades of experience behind the brand, International Dyno has built a strong reputation for quality equipment, technical expertise, and customer support. That long-standing commitment to innovation and reliability continues to define the company today.

In 2025, International Dyno was purchased by Shawn Parker, who also owns Granger Machine. This ownership transition strengthened International Dyno's future while preserving the core mission: manufacturing high-quality marine engine testing solutions that support professionals across the industry.