3868604 Drive | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta DP-S1 sterndrive with the 1.68:1 gear ratio, weighing about 58 kg and listed for 2 applications on the DP series. It supersedes part number 3868166, catalogued earlier as a drive unit.

🚤 Compatibility

Typically suits:

• Volvo Penta DP-S
• Volvo Penta DP-S1

• Engine Family: DP

⚙️ Key Features

• DP-S1, 1.68:1 ratio
• About 58 kg
• 2 applications on the DP series
• Supersedes 3868166
• The lowest DP-S1 ratio offered

🔌 Function

Complete duo prop sterndrive that turns the engine output through the bevel gears to the two contra-rotating propeller shafts, and carries the steering and trim movement.

⚠️ Common Signs of Failure

• Oil weeping from the seals or an oily film on the leg
• Drive oil milky or emulsified, showing water ingress
• Whine or growl from the gears that changes with load
• Vibration or a knock when engaging gear
• Corrosion and paint blistering on the castings

🛠️ Service Notes

• The published weights across the DP-S1 range swing from about 58 kg to about 74.5 kg for what is otherwise the same drive at different ratios, so treat the figures as indicative only and order by ratio
• Heavy unit - plan for lifting gear and freight handling
• Renew the transom seals, bellows and gimbal bearing while the drive is off, and match the duo prop set to the ratio

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3868604 → Supersedes 3868166

OEM / Related Numbers

• 3868166 earlier number superseded by this part

📦 Condition

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