Yamaha Collar - 90387-075H4-00. High-Quality Yamaha Collar for Secure Performance. The Yamaha Collar - 90387-075H4-00 is a precision-engineered component designed to provide a secure fit for various Yamaha parts and systems. Built to meet the highest standards of durability, it ensures reliable performance, even in harsh conditions. Whether you're replacing an old part or performing maintenance, this collar will deliver long-lasting stability and protection for your Yamaha equipment.. Key Featur