21040151 Big-End Bearing Shell | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta big-end bearing shell manufactured to the specified journal diameter and repair grade for use in the Volvo Penta TAD734GE crankshaft and connecting-rod bearing system. Bearing size must be selected from measured crankshaft dimensions rather than assumed from engine model alone. 0.50 mm undersize big-end bearing shell for a crankpin that has been machined to the matching repair dimension.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD734GE

• Engine Family: TAD

⚙️ Key Features

• 0.50 mm undersize big-end bearing grade
• Genuine precision bearing shell or bearing component
• Correct oil-clearance and locating geometry
• Matched material and overlay specification
• Grade-specific for the stated journal dimension
• Do not mix standard and undersize repair grades
• Engine type: Volvo Penta 7-litre inline six-cylinder generator-drive diesel
• 0.50mm (Volvo assembly listing)
• 6 used per assembly

🔌 Function

Supports the rotating crankshaft or connecting rod on a controlled hydrodynamic oil film while maintaining alignment and oil clearance.

⚠️ Common Signs of Failure

• Low oil pressure or metallic knocking
• Copper or backing material visible on the shell
• Scoring, wiping, pitting or heat discolouration
• Excessive journal clearance or crankshaft movement
• Metal debris in the oil and filter

🛠️ Service Notes

• This is the 0.50 mm undersize grade for the TAD734GE crankpin, weighing 0.19 kg against 0.16 kg for the 0.25 mm undersize shell (21040150) — order by the measured undersize grade, not by weight
• Fit the complete set of six per engine, and confirm the crankshaft has not been reground beyond 1.00 mm undersize before ordering, since a journal beyond that has reached the end of its repairable life

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21040151

📦 Condition

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