Compatibility: 8 1/2 x 7 1/2 (8.5x7.5) pitch boat propeller fit for YAMAHA 6HP 8HP 9.9HP Engines. Specifications: 8 1/2 inch diameter, 7 1/2 inch pitch, 3 blades, 7 tooth spline, right-hand rotation. Material: Durable aluminum construction for long-lasting performance in marine environments. OEM Replacement: Direct replacement for Yamaha marine propeller, OEM part number No. 6G1-45943-00-00 6G1-45943-00-EL. Application: Designed for YAMAHA outboard boat motors, providing efficient propulsion and maneuverability. Boat Propeller for YAMAHA 6HP 8HP 9.9HP Engines 8 1/2 x 7 1/2 OEM Parts Number: 6G1-45943-00-00 6G1-45943-00-EL Blade: 3 Number of splines:7 Material: Aluminum Rotation: Right Hand Rotation (RH) Engine Application: 6-9.9 HP 6 HP (2-Stroke) - 1986-2000 F6 (4-Stroke) - 2001-2010 8 HP (2-Stroke) - 1986-2009 F8 (4-Stroke) - 2001-Newer F9.9 (4-Stroke) - 2008 - Newer Note: To choose your propeller, we kindly advise you to confirm your own propeller's (1) brand, (2) diameter, (3) pitch, (4) rotation, (5) OEM number, (6) engine date to be matched by the propeller, (7) HP from the manufacturer before the purchase.