OTC

OTC

OTC, originally the Owatonna Tool Company, is a manufacturer of automotive diagnostic and service tools based in the United States. Now part of Bosch Automotive Service Solutions, OTC has a long history of producing test and measurement instruments, specialty tools, and diagnostic equipment for professional automotive technicians and fleet maintenance operations. Their product range spans handheld digital analyzers, specialty pullers, adapters, and scan tools used in dealership and independent repair shop environments.

OTC's test and measurement instruments include digital pressure and temperature analyzers, compression testers, and other diagnostic tools used for engine diagnostics, fluid system analysis, and powertrain troubleshooting. These instruments are designed for durability and ease of use in workshop environments where speed and accuracy are critical.

Key Product Lines

• Digital Pressure and Temperature Analyzers — multi-parameter instruments for measuring fuel, oil, coolant, and transmission pressures alongside fluid temperatures during vehicle diagnostics
• Automotive Scan Tools and Diagnostic Interfaces — code readers and professional scan tools for OBD-II and manufacturer-specific vehicle diagnostic protocols
• Specialty Service Tools — engine, transmission, suspension, and drivetrain specialty tools for professional automotive service technicians

Industries Served

OTC products are used in automotive dealerships, independent repair shops, fleet maintenance facilities, vocational training programs, and government vehicle maintenance operations. Their instruments support diagnostics across passenger vehicles, light trucks, and commercial vehicles.