Volvo Penta hub set for 2-blade folding propeller for 5–40 hp – 21630722

Volvo Penta D1/D2 hub kit 21630722 is a hub kit for folding 2-blade propellers, specifically designed for sailboats with a metric standard shaft (1:10 taper) of 30 mm and an engine power range of 5–40 hp. This robust set, made of durable nibral (nickel-bronze-aluminum) alloy, provides strong thrust, even in reverse, and ensures smooth, quiet operation with minimal vibration. The kit includes zinc anodes, locking fluid, and installation hardware, allowing you to correctly mount the folding propeller and protect it from corrosion.

Key Features and Benefits:

Suitable for 5–40 hp engines: Designed for Volvo Penta D1 and D2 engines with a metric standard shaft (30 mm, key 8 mm).
Durable nibral alloy: Strong and reliable material choice for long-lasting performance in marine environments.
Patented blade geometry: Provides powerful thrust in forward and reverse with smooth operation.
Rubber bushing and galvanic isolation: Prevents galvanic corrosion in S-drives and shafts.