3889314 Flexible Coupling | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta flexible coupling from the marine propulsion group, weighing 4.246 kg and listed for 7 applications on D series engines. It consolidates part numbers 3812226 and 3842864.

🚤 Compatibility

Typically suits:

• Volvo Penta D2-55
• Volvo Penta D2-55B
• Volvo Penta D2-55C
• Volvo Penta D2-55D
• Volvo Penta D2-55E
• Volvo Penta D2-55F
• Volvo Penta D2-50F

• Engine Family: D
• HP Range: 50-55 HP

⚙️ Key Features

• 4.246 kg
• Supersedes 3812226 and 3842864
• 7 applications on D series engines

🔌 Function

Connects the engine or transmission output to the shaft while absorbing torsional shock and tolerating small amounts of misalignment.

⚠️ Common Signs of Failure

• Clonk or knock when taking up drive or changing between ahead and astern
• Vibration through the hull that rises with shaft speed
• Rubber element cracked, perished, split or delaminated
• Bolt holes elongated or fasteners found loose
• Drive train misalignment showing as uneven wear across the coupling

🛠️ Service Notes

• One number now covers both 3812226 and 3842864, so an older list showing either is served by this coupling
• Check and correct engine and shaft alignment when fitting, since misalignment is what destroys flexible couplings
• Renew the coupling fasteners and tighten to the specified figure, then recheck after a few hours running

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3889314 → Supersedes 3812226

📦 Condition

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