23265930 Lower Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta lower gear unit with a 1.69:1 ratio, weighing 42.64 kg and listed for 11 applications across D series engines and DPI drives. The ratio is critical and must match the propeller selection - the 1.85:1 unit is a far heavier assembly.

🚤 Compatibility

Typically suits:

• Volvo Penta D6-300A-G
• Volvo Penta D6-340A-G
• Volvo Penta D6-380A-G
• Volvo Penta DPI-A
• Volvo Penta D6-400A-G
• Volvo Penta D6-440A-G
• Volvo Penta D4-150A-G
• Volvo Penta D4-230A-G
• Volvo Penta D4-270A-G
• Volvo Penta D4-320A-G
• Volvo Penta D4-300A-G

• Engine Family: D, DPI
• HP Range: 150-440 HP

⚙️ Key Features

• 1.69:1 ratio
• 42.638 kg
• Listed for 11 applications across D series engines and DPI drives
• The 1.85:1 alternative is 23265931, a far heavier assembly
• Ratio 1.69:1 (Volvo assembly listing)

🔌 Function

Carries the drive down to the propeller shafts and sets the final reduction between engine and propellers through its 1.69:1 gearset.

⚠️ Common Signs of Failure

• Howl or whine from the lower unit that varies with load
• Drive oil emulsified or carrying metal
• Vibration or a clunk as gear is taken up
• Water leaking past the propeller shaft seals
• Gear teeth pitted or spalled and bearings marked on strip-down

🛠️ Service Notes

• The ratio must match the propellers, and both drives in a twin installation must be the same
• Renew the propeller shaft seals and check the anodes while the unit is off
• Weight makes this a hoist or two-person job

📦 Condition

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