Upgrade your marine propulsion system with this high-quality Marine Propeller Shaft Hub Kit, designed as a perfect replacement for MerCruiser XZ, XR Racing Sport, Master models, and Verado SCI 350, 400, 450 HP engines featuring a 1.25-inch shaft. Engineered to deliver enhanced performance and durability, this prop shaft hub kit ensures smooth and reliable operation while protecting your boat from impacts and wear. Key Features: · Precise Fitment: Compatible replacement for MerCruiser XZ, XR Racing Sport, Master series, and Verado SCI 350, 400, 450 HP engines with a 1.25-inch propeller shaft, ensuring seamless integration and optimal functionality. · OE Number Reference: Matches original equipment part numbers 840389K06, 840389K5, 840389A5, 840389A2, 840389A1, and 8M0183487 for accurate identification and hassle-free replacement. · Enhanced Marine Performance: Designed to improve your boat’s overall propulsion efficiency by providing smooth power transfer from the engine to the propeller, reducing operational disruptions. · Quiet and Smooth Operation: Minimizes shifting noise and propeller rattle, delivering quieter performance and a smoother ride on the water. · Durable and Sturdy Construction: Manufactured from high-strength, wear-resistant materials to withstand harsh marine environments, ensuring long-lasting reliability and protection against impacts. · Easy Installation: User-friendly design allows for straightforward replacement, reducing downtime and maintenance effort. Specifications: · Item Type: Marine Propeller Shaft Hub Kit · Compatible Models: MerCruiser XZ, XR Racing Sport, Master; Verado SCI 350, 400, 450 HP (1.25-inch shaft) · OE Part Numbers: 840389K06, 840389K5, 840389A5, 840389A2, 840389A1, 8M0183487 · Shaft Diameter: 1.25 inches · Material: High-strength, wear-resistant construction Package Includes: · 1 x Marine Propeller Shaft Hub Kit This Marine Propeller Shaft Hub Kit is an essential upgrade for boat owners seeking reliable replacement parts that enhance propulsion performance and durability. Its robust construction and precise fitment help ensure quiet, smooth, and efficient power delivery, making it an ideal choice for maintaining or restoring your marine engine’s optimal operation.