Volvo IPS NS4 Front Propeller 21915974

Volvo Penta IPS NS4 Front Propeller 21915974 | IPS-15 DuoProp

The Volvo IPS NS4 Front Propeller 21915974 is a genuine OEM NiBral propeller engineered for Volvo Penta IPS pod drive systems. Featuring a precision-balanced 4-blade forward-facing design, the NS series is optimized for reduced noise, lower vibration, and enhanced onboard comfort while maintaining strong propulsion efficiency. This propeller operates in conjunction with a counter-rotating rear propeller to deliver improved thrust distribution, fuel efficiency, and maneuverability. Manufactured from high-strength nickel-aluminum-bronze (NiBral), it offers excellent durability and corrosion resistance in demanding marine environments. The NS4 configuration is well-suited for applications requiring smooth, quiet performance with reliable mid-range power and control.

Genuine OEM Volvo Penta Type NS4 series NiBral Propellers. Available sets include, N1, N2, N3, N4, N5, N6 ,N7, NS4. NS5.

Core Specifications

• Part Number: 21915974
• Application: Volvo Penta IPS-15 pod drives
• Prop Type: NS4 (Type N series)
• Position: Front propeller (forward-facing)
• Blade Count: 3 blades (FRONT)
• Material: NiBral (Nickel-Aluminum-Bronze)
• Configuration: Part of a counter-rotating Duoprop set (paired with 4-blade rear prop)