21509611 Roller Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta set of four rubber isolation rollers for the engine-to-reverse-gear connecting arrangement used with the HS63AE transmission. The rollers cushion the connecting cover and maintain the specified support geometry.

🚤 Compatibility

• Engine Family: D, HS
• HP Range: 180-330 HP
• Year Range: Approximately 2003-2020

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta four-roller set
• Correct Volvo Penta part number 21509611
• Contains four matched rubber isolation rollers
• Used in the HS63AE reverse-gear connecting arrangement
• Restores cushioning and alignment at the transmission connection
• Engine type: Volvo Penta D4 inboard marine diesel

📋 Kit Contents

• Kit includes 4 pcs rubber rollers

🔌 Function

The rubber rollers isolate vibration, support the connecting cover and allow controlled movement between the engine and reverse-gear installation.

⚠️ Common Signs of Failure

• Excessive drivetrain vibration or rattling
• Rubber rollers flattened, cracked or oil-soaked
• Connecting cover moves or contacts surrounding components
• Misalignment at the reverse-gear connection
• Noise returns after transmission or coupling service

🛠️ Service Notes

• Fit the kit complete and keep the rollers as a matched set — mixing new rollers with old ones, or running them on a worn track or seat, loads them unevenly and shortens their life sharply
• Work clean: rolling elements are ruined by grit, so wash the parts in clean solvent, dry them without fibrous rag, and keep the assembly covered while you work
• Inspect the surfaces the rollers run on for scoring, pitting and flat spots before fitting; a marked track will destroy a new set
• Pre-lubricate the rollers on assembly with the grease or oil grade specified in the workshop manual for your engine rather than relying on the first run to reach them
• Turn the assembly through by hand once built up and feel for roughness, drag or tight spots before it goes back into service

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 965185 related flange screw
• 3584253 related connecting cover

Other-Brand OEM Numbers

• VOE21509611

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D4-260I-C, D4-260I-D, D4-260I-E, D4-260I-F, D4-300I-A, D4-225I-C, D4-225I-D, D4-180I-E, D4-225I-E, D4-180I-F, D4-225I-F, D4-300I-C, D4-300I-D, D4-300I-E, D4-300I-F
• Volvo Penta D6-280I-D, D6-310I-D, D6-280I-E, D6-310I-E, D6-300I-F, D6-330I-C, D6-330I-D, D6-280I-C, D6-310I-C, D6-330I-F, D6-330I-E
• Volvo Penta HS63AE, HS63AE-A