23548868 Lower Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta lower gear with a 1.63:1 ratio, weighing 47.63 kg and listed for nine applications across D series engines and DPH drives. It supersedes 22079938, and a remanufactured lower gear is also catalogued.

🚤 Compatibility

Typically suits:

• Volvo Penta D6-300A-G
• Volvo Penta D6-340A-G
• Volvo Penta D6-380A-G
• Volvo Penta DPH-E
• Volvo Penta D6-400A-G
• Volvo Penta D4-150A-G
• Volvo Penta D4-230A-G
• Volvo Penta D4-270A-G
• Volvo Penta D4-300A-G

• Engine Family: D, DPH
• HP Range: 150-400 HP

⚙️ Key Features

• 1.63:1 ratio
• 47.63 kg
• Listed for nine applications across D series engines and DPH drives
• Supersedes 22079938
• A remanufactured lower gear is also catalogued
• Ratio 1.63:1 (Volvo assembly listing)

🔌 Function

Is the lower half of the drive, carrying the propeller shafts and the bevel gears that set the 1.63:1 reduction and turn the drive to the propellers.

⚠️ Common Signs of Failure

• Whine or growl from the lower unit that rises with shaft speed
• Vibration under way that changes with engine speed
• Milky gear oil, showing water has reached the gearcase
• Metal particles on the drain plug magnet
• Backlash or roughness felt at the propeller shaft

🛠️ Service Notes

• Match the ratio to the drive it goes into - 1.76:1 (23548869), 1.96:1 (23548870) and 2.08:1 (23548871) cover the same applications
• Compare the cost against the remanufactured lower gear listed for this fitment
• Find why the oil was contaminated, usually a failed seal, before fitting a replacement gear

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23548868 → Supersedes 22079938 → Supersedes 3888875 → Supersedes 3801227

OEM / Related Numbers

• 22079938 earlier number superseded by this part
• 3888875 earlier number superseded by this part
• 3801227 earlier number superseded by this part

📦 Condition

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