23265928 Upper Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta upper gear unit from the Marine Propulsion group, weighing 88.90 kg and listed for 11 applications across D series engines and DPI drives. At nearly 90 kg this is a lifting job, and it pairs with one of the two lower gear ratios.

🚤 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

• Upper gear unit
• 88.904 kg
• Listed for 11 applications across D series engines and DPI drives
• Pairs with a lower unit of the chosen ratio - 23265930 at 1.69:1 or 23265931 at 1.85:1

🔌 Function

Takes the drive from the engine through the transom and turns it downwards through the upper gearset, carrying the shift mechanism down to the lower unit.

⚠️ Common Signs of Failure

• Whine or growl from the drive that changes with speed
• Drive oil milky, or bright with metal, at the change
• Shifting heavy, notchy or failing to engage
• Water in the upper unit from a failed shaft seal
• Bearing tracks pitted and gear teeth chipped on strip-down

🛠️ Service Notes

• At nearly 90 kg this is a lifting job - arrange the hoist and the support before starting
• Check the drive oil condition, the bellows and the seals before committing to a complete unit
• Confirm the lower unit's ratio in the boat, since the upper unit is used with both the 1.69:1 and the 1.85:1 lower

📦 Condition

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