875484 Main Bearing Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta main bearing kit in the standard grade, weighing 0.116 kg and listed for 7 applications across MD and AQD series engines. It shares its grade note and its engine series with the other standard kit in this run, 875483, which is listed for 8 applications — nothing else in the listing separates them, so check the application list against your engine and order by part number. In the same 7-application family, 875488 is the 0.25 mm undersize and 875489 the 0.50 mm undersize; order by the stamped grade, since published weights do not separate a graded bearing set.

🚤 Compatibility

Typically suits:

• 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

• Standard grade
• 0.116 kg
• Listed for 7 applications across MD and AQD series engines
• 0.25 mm undersize is 875488 and 0.50 mm undersize is 875489
• Order by the stamped grade, not by weight
• Quantity varies by assembly, most commonly one

🔌 Function

Carries the crankshaft in the block, holding it on an oil film and taking the load from each firing stroke.

⚠️ Common Signs of Failure

• Oil pressure low or dropping away when hot
• Heavy rumble from the crankcase under load
• Bearing metal in the sump or on the filter element
• Shells wiped, scored or with the underlay showing
• Journal clearance or end float measuring out of limits

🛠️ Service Notes

• Two standard-grade kits appear in this run, 875483 and 875484, separated only by their application listings — confirm against your engine before ordering
• Measure the journals and read the grade on the old shells; the undersize kits are 875488 and 875489 and weight is no guide between grades
• Fit the shells dry into clean housings and tighten to the specified sequence

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• Crom: 111465

📦 Condition

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