20867665 Big-End Bearing Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta 0.50mm undersize connecting-rod bearing kit for one D9 crankpin that has been reground by 0.50mm. Each kit contains one matched upper and lower shell. Six kits are required for a complete six-cylinder engine, and the repair grade must match the measured crankshaft journal.

🚤 Compatibility

Typically suits:

• Volvo Penta D9A2L MH
• Volvo Penta D9A2M MP

• Engine Family: D
• HP Range: Approximately 425-575 HP
• Year Range: Approximately early 2000s-mid-2010s

⚙️ Key Features

• Genuine Volvo Penta OEM big-end bearing kit
• Correct Volvo Penta part number 20867665
• 0.50mm undersize crankshaft repair grade
• Suitable only for a correctly machined D9 crankshaft
• Engine type: Volvo Penta 9.4L inline 6-cylinder turbocharged diesel
• 6 used per assembly

📋 Kit Contents

• Upper 0.50mm undersize connecting-rod bearing shell - kit number 20867665 - quantity 1
• Lower 0.50mm undersize connecting-rod bearing shell - kit number 20867665 - quantity 1
• Six kits are required for a complete D9 engine

🔌 Function

The thicker bearing shells restore the specified oil clearance on a crankpin machined 0.50mm below standard diameter.

⚠️ Common Signs of Failure

• Incorrect oil clearance after crankshaft grinding
• Rod knock or low oil pressure
• Bearing overlay wiped or scored
• Crankpin damage exceeds the selected repair grade
• Mixed standard and repair-size shells installed

🛠️ Service Notes

• Fit the shells dry into clean, dry rod and cap housings with the locating tang in its notch, then oil the running face only — oil or dirt trapped behind a shell stops it bedding and carrying heat away
• Never file, scrape or dress the shells, the backs of the shells or the cap joint faces; the crush that locks a shell in place depends on those faces being untouched
• Measure the crankshaft journals and check the clearance you actually have, with a crush-type clearance gauge or a bore gauge and micrometer, against the figures in the workshop manual for your engine — a scored, worn or oval journal will destroy new shells
• Keep each pair of shells with its own rod and cap, refit caps the original way round, and read the wear pattern on the shells you removed; it usually tells you why the bearing failed
• Renew the rod bolts where the manual calls for it, tighten by the specified method and sequence, and confirm the crankshaft still turns freely by hand before going any further

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20867665 → Supersedes 85103715

OEM / Related Numbers

• 85103715 earlier number superseded by this part

Other-Brand OEM Numbers

• VOE20867665
• MAHLE: 038 PS 20095 050
• Kolbenschmidt: 77833620

Aftermarket / Verified Equivalents

• Heavy-duty aftermarket: 85103715
• SLP: CRP-665

📦 Condition

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