Quicksilver 818928A2 Lower Unit Gear Set for MerCruiser Bravo I XR/XZ 15/19 Ratio

The Quicksilver 818928A2 is a genuine OEM lower unit gear set designed specifically for MerCruiser Bravo I XR and XZ sterndrive applications. This precision-engineered gear set features a 15/19 tooth configuration that delivers reliable power transfer and optimal performance for high-performance marine engines.

Key Features:

• Genuine Mercury Marine OEM part, not aftermarket
• 15/19 tooth gear ratio for Bravo I XR and XZ lower units
• Precision-machined gears for smooth operation and durability
• Direct replacement for worn or damaged lower unit gear sets
• Designed for MerCruiser Bravo XR Sportmaster applications

This complete gear set is manufactured to Mercury Marine's exacting specifications to ensure proper fit, function, and longevity. The 818928A2 gear set is a critical component of the lower unit gear housing assembly, transmitting power from the drive shaft to the propeller shaft. When replacing worn gears, it's recommended to inspect all related components including bearings, seals, and shims for optimal performance.