Description

Volvo Penta 181105 is a genuine OEM ball bearing used in Volvo Penta marine propulsion applications. Volvo Penta’s official parts shop continues to list 181105 as an active genuine ball bearing, and current schematic-based references place it in D41B / marine propulsion. Current reviewed public sources do not publish a confirmed inside diameter, outside diameter, width, or bearing-series dimension for this exact OEM number.

Key Features

• Genuine Volvo Penta OEM part number 181105.
• Individual ball bearing service part, sold separately rather than as part of a kit.
• Current reviewed dealer references show approximate product weight around 0.33 lb.
• Current reviewed market references show 181105 associated with earlier/replaced number 806740.

Engine Compatibility
Current public fitment references for 181105 point to older Volvo Penta engine and drive families, with reviewed sources listing applications including AD30, AD31, AD40, AD41, AQAD30, AQAD40, AQD40, D41, KAD42, MD11, MD17, MD1, MD2, MD3, MD5, MD6, MD7, TAMD31, TAMD41, TMD31, TMD41, 430, 431, 500, 501, 570, 571, AQ115, AQ175, AQ190, AQ200, AQ205, AQ211, AQ225, AQ231, AQ240, AQ255, AQ260, AQ271, AQ290, AQ311, BB740, MB10, 290, DP, and SP. One reviewed source also identifies AQ175A specifically and places the bearing at the flywheel housing. Fitment should still be confirmed by exact engine or drive serial number before ordering.

Serial Number Fitment Notice
Ball bearings can vary by shaft size, housing, shielding, and production range even when the application family looks similar. Confirm Volvo Penta 181105 by engine or drive serial number and by matching the original bearing location and dimensions before ordering. Volvo Penta’s support resources also direct owners to identify the correct engine, shield, or drive when locating genuine parts.

When This Part Needs Replacement
Replace this bearing when the original shows roughness, noise, looseness, corrosion, visible wear, or damage found during service. Because current reviewed sources place 181105 in marine propulsion and flywheel-housing related service, replacement is typically tied to repair or overhaul work when the original no longer turns smoothly or supports the assembly correctly. This is service-based guidance grounded in the part’s confirmed bearing function and reviewed application context.

Installation Notes
Match the replacement directly to the original before installation and inspect the surrounding shaft and housing surfaces during service. Since current public references confirm the part number and application context more clearly than they publish engineering dimensions, direct comparison to the removed bearing and serial-number verification are the safest checkpoints before final assembly.

Alternate/Superseded Part Numbers
Current reviewed references show Volvo Penta 181105 associated with earlier/replaced number 806740 in current market data. Current confirmed Volvo Penta ordering number is 181105.

Parts Desk Insight
For a part like 181105, the strongest buying checkpoint is the exact bearing location and serial-number-based parts lookup, not the word “bearing” alone. Current reviewed sources point to older engine, flywheel-housing, and marine propulsion use across a wide range of Volvo Penta families, which makes serial-number confirmation the cleanest way to avoid ordering the wrong bearing.

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