21433628 Propeller Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta type Q8 nibral propeller set for Volvo Penta IPS 3, IPS 30, specifically developed for IPS with D13 engines to give outstanding efficiency, onboard comfort and manoeuvrability. The set supplies the matched three-blade front propeller and four-blade rear propeller together. Volvo Penta IPS turns the propellers round to a forward-facing position, so the twin counter-rotating propellers pull the boat through the water rather than push it, and optimal interaction between the front and rear propeller holds performance and fuel efficiency across the whole speed range.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C2-B MP
• Volvo Penta D13C2-A MP
• Volvo Penta D13C4-A MP
• Volvo Penta D13B-L MP
• Volvo Penta D13B-G MP
• Volvo Penta D13B-K MP
• Volvo Penta D13B-C MP
• Volvo Penta IPS30-E
• Volvo Penta D13C6-A MP
• Volvo Penta IPS3-C
• Volvo Penta D13C4-B MP
• Volvo Penta D13C5-B MP
• Volvo Penta D13C5-A MP
• Volvo Penta IPS30-D
• Volvo Penta D13C7-B MP
• Volvo Penta D13C8-B MP

• Engine Family: D, IPS
• HP Range: Approximately 0-700 HP
• Year Range: Approximately 2012 onward

⚙️ Key Features

• Matched Type Q8 front and rear pair
• Front propeller 21433608, rear propeller 21433618
• Nibral, developed for IPS with D13 engines
• For IPS 3 and IPS 30 pod drives
• The Q range runs QS4, QS5 and Q1 to Q8
• Extremely strong and specially developed nibral (nickel-bronze-aluminium) alloy.
• Minimum growth, excellent durability and corrosion resistance.
• Patented flow deflector minimizes pressure and wear on propeller shaft seals.
• Three-blade front propeller and four-blade rear propeller.
• Fully CNC machined for exact tolerances and perfect geometry.
• Precise balancing for minimal vibration, quiet running and less wear on the drivetrain.
• The type Q/QS propeller is type approved by DNV for D13 IPS900, IPS1050, IPS1200 and IPS1350.
• Supplied as a matched front and rear pair.
• Material: nibral
• Fits: Volvo Penta IPS 3, IPS 30 (D13 engines)
• Type: Q8
• Set contains: front 21433608, rear 21433618

📋 Kit Contents

• 1 × Type Q8 front propeller - 21433608
• 1 × Type Q8 rear propeller - 21433618
• Propeller cone, nuts and installation hardware are serviced separately
• Related IPS3 propeller-cone kit - 21297787

🔌 Function

Supplies both propellers of the IPS pair in one order, so the front and rear blade loading stays as designed and the engine reaches its rated speed at wide open throttle.

⚠️ Common Signs of Failure

• Vibration caused by bent blades, impact damage or an unmatched pair
• Corrosion, blade-edge erosion or hub damage
• Unequal loading after replacing only one propeller with the wrong Q size

🛠️ Service Notes

• Buying the set keeps the pair matched; the halves are also sold singly as 21433608 and 21433618
• Changing Q class changes engine loading, so keep to the Q number the boat was propped with unless it is being repropped deliberately
• Volvo Penta propellers carry a 12 month warranty, extended to 24 months including labour when supplied and fitted by an authorised Volvo Penta dealer
• The type Q/QS series runs QS4, QS5, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 from moderate top speed to high top speed; Q8 sits of 10 on that scale.
• Both propellers on a drive must carry the same type code - the front and rear are matched for torque distribution and mixing codes changes how the load is shared.
• Line cutter 21686496 is the one listed for Volvo Penta IPS 3, IPS 30.
• Volvo Penta water-resistant multi-purpose premium grease is recommended for propeller shafts and all other propeller components.

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21433608 front propeller
• 21433618 rear propeller
• 21297787 related propeller-cone kit

Other-Brand OEM Numbers

• VOE21433628

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging