Volvo Penta hub set for 2-blade folding propeller for 5–40 hp – 21630721

Volvo Penta hub kit 21630721 is an original hub kit for a 2-blade folding propeller on a fixed propeller shaft. This hub kit connects the propeller shaft to the individual propeller blades, ensuring safe, precise, and reliable power transmission. The hub is designed for a metric 25 mm propeller shaft with a 1:10 taper and a 6 mm keyway. Manufactured from strong, corrosion-resistant Nibral, this hub kit is designed for Volvo Penta drive systems with engine outputs from 5 to 40 hp. Please note: this kit includes the hub only and must be combined with a matching Volvo Penta 2-blade propeller blade set.

Main features and benefits:

Reliable power transmission: Securely connects the propeller blades to the propeller shaft.
For 25 mm propeller shafts: Suitable for metric shafts with a 1:10 taper and 6 mm keyway.
Nibral construction: Extremely strong and corrosion-resistant alloy for a long service life.
Suitable for 5-40 hp: Designed for Volvo Penta engines within this power range.
Original Volvo Penta part: Guarantees a perfect fit and reliable performance.
To be combined with a blade set: Suitable for installation with a matching Volvo Penta 2-blade Blade Kit.