Volvo Penta 854764 DP Drive Type A - 1 D. Propeller SetGenuine OEM Volvo Penta part.The DP Type A propeller sets are replaced by type J propeller sets. However, Type A propellers (front and rear) are sold individually as spare parts. Complete sets of A0 and A1 are available only. The DP propeller is a patented blade geometry and large propeller diameter accommodates optimal efficiency as well as quiet and smooth operation. A special high strength aluminum alloy and squeeze casting process makes the propellers stronger and more durable than traditional die-cast propellers. Four layers of paint ensures excellent corrosion protection performance.Genuine Volvo Penta propellers are developed exclusively for their drive, matching both engine power and torque. The result is a proven design that ensures optimal performance, fuel economy, and comfort along with the peace of mind you expect from Volvo Penta.Features: Patented blade geometry and large active propeller diameter. ; Strong and durable high strength aluminum alloy.; Excellent anti-corrosion performance.; Three-blade front propeller and four-blade rear propeller.; Specifications: Diameter: 1; Rotation: Counter/Standard; Position: Set (Front & Rear); Number of Blades: Front - 3/ Rear - 4; Material: Aluminum; Special Order Item.