23427155 Propeller | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta three-blade nibral propeller for Volvo Penta IPS 2, IPS 20, the front half of the type PS5 counter-rotating pair. It is machined from the specially developed nibral (nickel-bronze-aluminium) alloy Volvo Penta uses for its IPS propellers, which gives minimum growth, excellent durability and corrosion resistance. 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 D11C2-A MP
• Volvo Penta D11C4-A MP
• Volvo Penta IPS20-E

• Engine Family: D, IPS

⚙️ Key Features

• Type PS5 front propeller for IPS 2 and IPS 20
• Nibral nickel-bronze-aluminium alloy, the Type P/PS series for IPS with D11 engines
• 26.345 kg
• Pairs with Type PS5 rear propeller 23427185; complete set is 23427145
• Listed for D11C2-A MP, D11C4-A MP and IPS20-E
• Supersedes 21622813
• Includes flow deflector to reduce shaft seal wear
• Extremely strong and specially developed nibral (nickel-bronze-aluminium) alloy.
• Minimum growth, excellent durability and corrosion resistance.
• Fully CNC machined and precisely balanced.
• The type P/PS propeller is type approved by DNV for D11 IPS650 and IPS800.
• Material: nibral
• Fits: Volvo Penta IPS 2, IPS 20 (D11 engines)
• Type: PS5
• Set contains: set 23427145, rear 23427185

🔌 Function

Meets the water first, ahead of the drive, and turns engine torque into thrust as the leading half of the counter-rotating pair. The PS5 designation is what matches the propeller to the hull and lets the engine reach its rated wide-open-throttle speed.

⚠️ Common Signs of Failure

• Vibration through the hull that rises with revolutions
• Loss of top speed or the engine failing to reach rated revolutions
• Blade tips bent, curled or chipped after a grounding or rope strike
• Pitting and roughened surfaces on the blade faces from cavitation or galvanic attack
• Marine growth or a distorted blade edge found once the drive is lifted

🛠️ Service Notes

• This number is one propeller of a pair - order the Type PS5 rear 23427185 with it, or the complete PS5 set 23427145, because a mismatched pair will not let the engine reach its rated speed
• The PS5 front 23427155 and rear 23427185 are published at 26.345 kg and 22.882 kg, 10.647 kg less than the 59.874 kg published for the set, so the figures do not reconcile - order by the PS5 designation, never by weight
• Genuine Volvo Penta propellers carry a 12 month warranty, extended to 24 months including labour when supplied and fitted by an authorised Volvo Penta dealer
• Fit front and rear to the same type code - complete set 23427145.
• Line cutter 21686494 is the one listed for Volvo Penta IPS 2, IPS 20.

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23427155 → Supersedes 21622813

OEM / Related Numbers

• 21622813 earlier number superseded by this part

📦 Condition

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