3868581 Drive | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta SX-C2 sterndrive with the 1.43:1 gear ratio, weighing about 67 kg and listed for 6 applications on the SX series. It supersedes part number 3868392, which was catalogued earlier as an Aquamatic drive.

🚤 Compatibility

Typically suits:

• Volvo Penta SX-C
• Volvo Penta SX-C1
• Volvo Penta SX-C2
• Volvo Penta SX-CT
• Volvo Penta SX-CT1
• Volvo Penta SX-CT2

• Engine Family: SX

⚙️ Key Features

• SX-C2, 1.43:1 ratio
• About 67 kg
• 6 applications on the SX series
• Supersedes 3868392
• The lowest of the SX-C2 ratios offered

🔌 Function

Complete sterndrive unit that turns the engine output through the upper and lower bevel gears to the propeller shaft, 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 SX-C2 ratios run 1.43:1 (3868581), 1.51:1 (3868582), 1.60:1 (3868858), 1.66:1 (3868583), 1.79:1 (3868584) and 1.89:1 (3868585), and the published weights are all within a few kilos, so the ratio and not the weight identifies the unit
• 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 propeller to the ratio

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3868581 → Supersedes 3868392 → Supersedes 3868208

OEM / Related Numbers

• 3868392 earlier number superseded by this part
• 3868208 earlier number superseded by this part

📦 Condition

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