21261207 Connecting Rod | Genuine Volvo Penta Part

🔧 Product Description

Genuine connecting rod for the Volvo Penta D13B-E MG and related D13 12.8-litre diesel engine family. It belongs to the commercial Volvo D13/DXi13 connecting-rod family and must be matched by engine serial number and piston/bearing specification.

🚤 Compatibility

Typically suits:

• Volvo Penta D13B-E MG
• Volvo Penta D13B-E MG (FE)
• Volvo Penta D13B-E MH
• Volvo Penta D13B-E MH (FE)
• Volvo Penta D13B-F MG
• Volvo Penta D13B-F MG (FE)
• Volvo Penta D13B-N MH
• Volvo Penta D13B-N MH (FE)
• Volvo Penta D13C6-A MP
• Volvo Penta D13C1-A MH
• Volvo Penta D13C2-A MH
• Volvo Penta D13C2-A MG
• Volvo Penta D13C1-A MG

• Engine Family: D
• Serial Range: SN-2013735016, Classified

⚙️ Key Features

• Confirmed D13B-E MG application
• 12.8-litre D13/DXi13 heavy-duty rod family
• Precision big-end and small-end bores
• Serial-controlled application around the documented production change from serial number 2013735016
• 6 used per assembly

🔌 Function

The connecting rod transfers combustion force from the piston to the crankshaft and maintains the correct piston-to-crankshaft geometry.

⚠️ Common Signs of Failure

• Big-end bearing knock
• Bent or twisted rod
• Cracked rod or cap
• Small-end bushing wear
• Metal contamination in the oil

🛠️ Service Notes

• Return each rod to its own bore and its original orientation, with its own cap the right way round — caps are machined with their rod and are not interchangeable
• Fit new connecting rod bolts unless the manual for your engine expressly permits reuse, and follow its torque-plus-angle sequence exactly; these fasteners are stretched into place, and a reused or mis-tightened bolt is a thrown rod
• Measure the journals, the bearing shells and the rod's big-end and small-end bores against the figures in the manual for your engine, and check the rod for bend and twist before it is used
• Fit the shells clean and dry into their seats with the locating tabs home, then oil only the running faces — never scrape, shim or adjust a bearing shell
• Lubricate the bolt threads and faces only as the procedure specifies, and check the rod turns freely with the correct side clearance before moving on

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21261207 → Supersedes 20876840

OEM / Related Numbers

• 20876840 earlier number superseded by this part
• 7420876840 related reference

Aftermarket / Verified Equivalents

• BF Germany: connecting-rod family cross-referencing 20876840 / 7420876840 / 21261207

📦 Condition

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