3840878 Flywheel | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta complete flywheel from the Engine group, weighing 16.180 kg and listed for 3 applications on D series engines. It is the lightest of three closely related complete flywheels: 3840879 weighs 17.237 kg and 3840880 weighs 18.360 kg, so weight is the practical way to tell them apart.

🚤 Compatibility

Typically suits:

• Volvo Penta D1-20
• Volvo Penta D1-20B
• Volvo Penta D1-20F

• Engine Family: D
• HP Range: 20 HP

⚙️ Key Features

• Supplied complete
• 16.180 kg
• 3 applications on D series engines
• Lightest of the three complete flywheels here, against 3840879 and 3840880

🔌 Function

Stores rotational energy to smooth the firing pulses and carries the starter ring gear and drive face.

⚠️ Common Signs of Failure

• Starter grinding, clattering or spinning without turning the engine
• Chipped or missing ring gear teeth in one area
• Vibration that follows engine speed
• Friction or drive face scored, blued or heat-cracked
• Flywheel bolts found loose or holes worn

🛠️ Service Notes

• Weigh or identify the old flywheel carefully - 3840879 and 3840880 are the same name at 17.237 kg and 18.360 kg
• Check the crankshaft flange face and rear main seal before fitting
• Use new flywheel bolts where they are single-use and torque in sequence

📦 Condition

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