23548870 Lower Gear | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta lower gear with a 1.96:1 ratio, weighing 108.41 kg and listed for nine applications across D series engines and DPH drives. It supersedes 22079943; at over 100 kg it is more than twice the weight of the 1.76:1 gear, so the lift needs planning.

🚤 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

• 1.96:1 ratio
• 108.41 kg
• Listed for nine applications across D series engines and DPH drives
• Supersedes 22079943
• More than twice the mass of the 1.76:1 gear 23548869, so the lift needs planning
• Ratio 1.96:1 (Volvo assembly listing)

🔌 Function

Is the lower half of the drive, carrying the propeller shafts and the bevel gears that give the 1.96:1 reduction.

⚠️ Common Signs of Failure

• Whine, growl or rumble from the lower unit under way
• Vibration through the hull that changes with speed
• Milky or grey gear oil on the drain sample
• Metal particles on the drain plug magnet
• Backlash or roughness at the propeller shaft

🛠️ Service Notes

• Confirm the ratio against the drive before ordering - four ratios share these nine applications
• At over 100 kg this needs lifting arrangements planned in advance
• A remanufactured lower gear is also catalogued for this fitment, so compare cost

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23548870 → Supersedes 22079943 → Supersedes 3840457 → Supersedes 3801171

OEM / Related Numbers

• 22079943 earlier number superseded by this part
• 3840457 earlier number superseded by this part
• 3801171 earlier number superseded by this part

📦 Condition

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