SX Aluminum Propeller 3 Blade 14 1/4" x 21" | Volvo Penta 3817469 Volvo Penta SX Aluminum Propeller 3 Blade 14 1/4" x 21" | 3817469 Volvo Penta 3817469 Aluminum Propeller 14 1/4 in. diameter x 21 in. pitch Fits Volvo Penta SX drives Standard rotation Original Volvo Penta Replaces Volvo 3850302