Solas 8513-138-21 Aluminum Rear Propeller 13.75" x 21" 4-Blade for Volvo Penta Duo Prop

The Solas 8513-138-21 is a high-performance aluminum rear propeller designed specifically for Volvo Penta dual propeller systems. This 4-blade rear propeller features a 13.75-inch diameter with a 21-inch pitch and right-hand rotation, engineered to deliver exceptional acceleration and top-end speed for boats equipped with Volvo Penta A, B, and C series DP280 and DP290 outdrives.

Key Features:

• Precision-engineered 4-blade design optimized for rear position in dual prop setup
• 13.75-inch diameter with 21-inch pitch for balanced performance
• High rake blade design with cupping for superior stern lift and acceleration
• Manufactured using advanced squeeze cast process for stronger, more durable blades
• 19-tooth spline hub with through-hub exhaust design
• Rubber molded octagonal hub to absorb vibration and reduce slipping
• 4-layer paint system with superior anti-corrosion coating
• Tested over 500 hours in saltwater spray tank, simulating 6+ months of marine use

Performance Benefits:

• Outstanding acceleration for watersports, towing skiers and tubers
• Excellent top-end speed and fuel economy
• Cost-effective OEM replacement with comparable performance standards
• Fits with existing hardware from original Volvo Penta propeller

Important Notes:

• This is the REAR propeller only - sold separately from front propeller
• Must be paired with a Solas front propeller of the same material (aluminum)
• Compatible with Volvo Penta DP280 and DP290 A, B, and C series drives
• Requires OEM hardware and may need special tools for installation
• Consult OEM manual for proper installation and torque specifications

Solas propellers are manufactured through a state-of-the-art development process including theoretical calculations, geometry design, prototype testing, and extensive field trials. The squeeze cast construction creates an almost non-porous propeller with finer grain size compared to traditional die-cast products, resulting in thinner, smoother, and stronger blades that deliver smooth, durable, and high-precision performance.