875492 Big-End Bearing Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta big-end bearing kit in the 0.25 mm undersize grade, weighing 0.061 kg and listed for 8 applications across MD and AQD series engines. It supersedes part number 806167, catalogued earlier as a bearing shell. It is the middle grade of the set in this run, with the standard kit 875491 and the 0.50 mm undersize kit 875493 either side of it.

🚤 Compatibility

Typically suits:

• Volvo Penta MD1B
• Volvo Penta MD2B
• Volvo Penta MD3B
• Volvo Penta MD11C
• Volvo Penta MD11D
• Volvo Penta AQD2B
• Volvo Penta MD17C
• Volvo Penta MD17D

• Engine Family: MD, AQD

⚙️ Key Features

• 0.25 mm undersize grade
• 0.061 kg
• Listed for 8 applications across MD and AQD series engines
• Supersedes 806167, catalogued earlier as a bearing shell
• Standard grade is 875491 and 0.50 mm undersize is 875493
• 0.25mm (Volvo assembly listing)
• Quantity varies by assembly, most commonly two

🔌 Function

Carries the connecting rod on a crankpin reground 0.25 mm undersize, holding it on an oil film and transmitting the firing load.

⚠️ Common Signs of Failure

• Knocking from mid-engine, worst on the overrun
• Oil pressure low when hot
• Bearing metal or copper in the sump or on the filter
• Shells wiped or scored through the surface layer
• Clearance out of limits on a crank already reground

🛠️ Service Notes

• Measure the crankpins rather than relying on a recorded regrind size
• Renew stretch-type big-end bolts and tighten to the specified method
• The standard and 0.50 mm undersize kits in this run are 875491 and 875493 — order by grade, not by weight

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 875492 → Supersedes 806167

OEM / Related Numbers

• 806167 earlier number superseded by this part

📦 Condition

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