21562993 Stay | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 21562993 - Part Number: Engine Anchorage Stay A genuine heavy-duty stay used in the engine anchorage and transmission-connection arrangement on Volvo Penta D8 marine propulsion engines. It braces the mounting structure and helps maintain alignment between the engine, flexible coupling and reversing gear.

🚤 Compatibility

Typically suits:

• Volvo Penta D8A5-A MH
• Volvo Penta D8A6-A MH
• Volvo Penta D8A1-A MP
• Volvo Penta D8A2-A MP
• Volvo Penta D8A3-A MP

• Engine Family: D
• HP Range: Approximately 550-600 HP
• Year Range: Approximately 2015 - 2025 production-era applications

⚙️ Key Features

• Genuine Volvo Penta structural engine-mounting stay
• Used in D8 marine propulsion anchorage assemblies
• Supports correct engine and transmission alignment
• Designed for continuous propulsion load and vibration
• Approximate component weight: 8.8kg
• Engine type: 7.7L inline six-cylinder common-rail marine diesel

🔌 Function

Braces the engine and reversing-gear mounting structure so propulsion torque and vibration are transferred through the intended load paths without disturbing shaft alignment.

⚠️ Common Signs of Failure

• Engine or gearbox movement under load
• Persistent driveline vibration
• Cracking around the stay or mounting holes
• Fretting, loose fasteners or elongated bolt holes
• Coupling or shaft-alignment changes

🛠️ Service Notes

• A stay supports a component and braces it against engine vibration, so offer it up and get the fasteners started before anything in the joint is finally tightened
• Leave all the fasteners finger tight, then tighten them in the order the manual gives, so the stay is not used to drag a misaligned component into position
• If the stay will not line up without strain, find out why rather than pulling it up on the bolts — a stay under tension feeds that load straight into the bracket, casting or pipe it is meant to support
• Renew a stay that is cracked, bent or has elongated fixing holes instead of straightening it; its whole function is stiffness, and a distorted or loosely held stay transmits vibration rather than resisting it
• Use the specified fasteners with their washers, tightened to the figures in the workshop manual for your engine, and recheck them whenever the component the stay supports is disturbed

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 3843416 - engine anchorage
• 22611924 - flexible coupling
• 995056 - spacer sleeve
• 953067 - stud
• 60112788 - spring washer
• 990980 - lock nut
• 984757 - flange screw
• 21563024 - separate stay used in the ZF286 IV connection arrangement

📦 Condition

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