21509619 Roller Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D11 Reversing Gear Flexible Coupling Roller Kit - Part Number: 21509619

A genuine elastomer roller set used in the flexible coupling on selected D11 marine propulsion reversing-gear installations. The set renews the compliant drive elements that isolate crankshaft torsional pulses from the gearbox.

⚙️ Key Features

• Matched OEM roller set

• For D11A-A marine propulsion coupling assemblies

• Maintains correct coupling stiffness and alignment

• Replace the complete installed set

📋 Kit Contents

• Matched rubber coupling rollers - Volvo Penta service kit 21509619; Volvo's indexed catalogue does not publish separate roller numbers or a reliable package quantity

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21509619 current roller-kit reference

OEM / Related Numbers:

• 3848150 / 3848151 / 3848152 - related reversing gears

• 21532583 - related flexible coupling

Aftermarket / Verified Equivalents:

• No direct aftermarket equivalent verified

🚤 Compatibility

Confirmed for Volvo Penta D11A-A marine propulsion packages using reversing gears 3848150, 3848151 or 3848152.

• HP Range: approximately 510HP-725HP depending on rating

• Year Range: approximately late 2000s-2010s

• Serial Range: reversing-gear and coupling controlled

🔌 Function

The rollers transmit torque through the flexible coupling while cushioning firing pulses, gear engagement shock and small alignment changes.

Common signs of failure:

• Rubber is cracked, flattened, oil-softened or missing

• Coupling knocks or rattles at idle

• Vibration increases during gear engagement

• Roller debris is found in the coupling housing

• Excessive coupling backlash develops

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging