This high-quality boat O-ring from Sierra is a must-have for any boat owner. With its durable construction, it is sure to provide long-lasting performance for all your boating needs. The O-ring fits perfectly and securely on your boat, ensuring that it stays in place even in the roughest of waters. The brand name Sierra is synonymous with quality and reliability, making this O-ring an excellent investment for your boat. The manufacturer part number 18-7124 is easy to remember, making it simple to find the right replacement part when it's needed. Whether you're out on the open sea or just enjoying a leisurely day on the lake, this boat O-ring is sure to provide the performance you need. Box 723