23434168 Volvo Penta Flexible Coupling | Genuine Used Part

🔧 Product Description

Genuine Volvo Penta D4 / D6 Flexible Coupling and Damper Plate - Part Number: 23434168

A genuine used Volvo Penta flexible coupling designed to absorb torsional vibration between selected D4 and D6 diesel engines and the connected IPS, inboard or propeller-shaft driveline.

The coupling is the later service replacement for Volvo Penta 21393521, which replaced 21111686 and earlier clutch reference 3847980. The assembly is also identified as a damper plate or flexible drive coupling.

⚙️ Key Features

• Genuine Volvo Penta flexible coupling
• Current reference 23434168
• Replaces 21393521, 21111686 and 3847980
• Reduces driveline vibration and torsional shock
• Suits selected Volvo Penta D4 and D6 propulsion systems

🚤 Compatibility

Commonly used on

• Volvo Penta D4 and D6 marine diesels
• IPS propulsion packages
• Inboard propeller-shaft installations
• Driveline assemblies using the CFRV-120 coupling design

Typically suits

• Engine and propulsion models:
• Volvo Penta D4-180I-B, C and D
• Volvo Penta D4-210A-A and B
• Volvo Penta D4-210I-A and B
• Volvo Penta D4-225A-B, C and D
• Volvo Penta D4-225I-B
• Volvo Penta D4-260 configurations using 21393521
• Volvo Penta D4-300 configurations using 21393521
• Volvo Penta D6-280 installations using the same coupling
• Volvo Penta D6-310 installations
• Volvo Penta D6-330 installations
• Volvo Penta D6-350 installations
• Volvo Penta D6-370 installations
• Volvo Penta D6-400 installations
• Volvo Penta D6-435 installations
• Volvo Penta IPS driveline packages originally fitted with 3847980, 21111686, 21393521 or 23434168
• HP Range: Approximately 180HP - 435HP
• Engine Type: Volvo Penta four-cylinder and six-cylinder common-rail marine diesel
• Year Range: Engine, gearbox and propulsion-package controlled

🔌 Function

The flexible coupling transfers engine torque to the propulsion shaft while damping combustion pulses, gear engagement shock and torsional vibration.

⚠️ Common Signs of Failure

• Knocking or rattling near the flywheel housing
• Excessive vibration at idle or under load
• Cracked or separated rubber elements
• Excessive rotational free play
• Drive engagement becomes harsh
• Rubber debris inside the coupling guard
• Propeller shaft does not rotate smoothly
• Repeated coupling-bolt loosening

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23434168 → Supersedes 21393521
• 21393521 → Supersedes 21111686
• 21111686 → Supersedes 3847980
• 3847980 earlier Volvo Penta clutch / flexible-coupling reference

OEM / Related Numbers

• 23434168
• 21393521
• 21111686
• 3847980
• 026.61729-000
• 25-00-173
• CFRV-120
• CF-RV-120
• D-42755
• 26-00473
• 24-00586
• Coupling bolts: 965186
• Propeller-shaft bolts: 465826
• Rubber roller kit: 21509615

Aftermarket / Verified Equivalents

• Swedish Lorry Parts: SLP 23434168
• SLP replacement suitable for Volvo 23434168 and 21393521

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated