Volvo Penta 854836 DP Drive Type B - 7 D. Rear Propeller RHGenuine OEM Volvo Penta part.The DP Type B propeller sets are replaced by type J propeller sets. However, Type B propellers (front and rear) are sold individually as spare parts. 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: 7; Rotation: Standard; Position: Rear ; Number of Blades: 4; Material: Aluminum; Note: Do not mix Type A, B and J propellers. Always use propellers of the same type and size on the drive (or on both drives in twin installations).Special Order Item.