22026428 Flexible Coupling | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D1 / D2 Flexible Flywheel Coupling, part number 22026428. A genuine flexible flywheel coupling used between Volvo Penta D1 or D2 engines and the marine transmission or saildrive. Its elastomer element absorbs torsional vibration and minor driveline shock.

🚤 Compatibility

• HP Range: Approximately 13-40 HP
• Year Range: Approximately 2005 - current supported applications

⚙️ Key Features

• Precision-machined bearing, mounting or torque-transfer surfaces
• Factory dimensions for the specified rotating assembly
• Designed for continuous marine or industrial load
• Requires correct alignment, preload and fastener torque
• Engine type: Compact two-, three- or four-cylinder marine diesel

🔌 Function

Supports, aligns or transfers rotating load while maintaining the specified bearing relationship, shaft position or torsional isolation.

⚠️ Common Signs of Failure

• Whine, rumble, knocking or driveline vibration
• Excessive backlash, end play or movement
• Pitting, fretting or metal debris
• Oil leakage caused by loss of alignment
• Premature bearing, seal or coupling failure

🛠️ Service Notes

• Check and set the alignment of the engine and drive before and after fitting a flexible coupling — it absorbs vibration and a small amount of misalignment, it does not correct a driveline that is out of line
• Handle the rubber elements carefully and keep them clear of oil, fuel and solvents, which soften and swell rubber and shorten its life dramatically
• Fit the coupling as a complete unit, use new locking hardware wherever the workshop manual for your engine specifies it, and tighten the fasteners to the figures in that manual
• Turn the driveline over by hand after assembly and check that it runs true, with no binding and no excessive free play
• Inspect the coupling whenever the drive is separated for any other reason; the rubber is the part that ages, and planned replacement is far cheaper than a failure at sea

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22026428 → Supersedes 3840422

OEM / Related Numbers

• 3840422 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Centa: 21-61576-00
• Centa related reference: 21-61684

📦 Condition

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