1219237 Connecting Rod | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta connecting rod from the Engine group, serving as the link between a piston and its crankshaft journal. It is the later-specification rod that supersedes the earlier 463021 connecting rod, and it covers a broad span of AQ, BB and MB series marine engines. Connecting rods are normally replaced as a matched set during a rebuild or after bearing damage.

🚤 Compatibility

• Engine Family: MB, AQ, BB
• Year Range: Approximately 1960s-1980s, engine-number and piston-family controlled
• Serial Range: MOXXXX/107001-

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta OEM connecting rod
• Correct current part number 1219237
• Supersedes Volvo 463021 and related 328735 references
• Used across selected four- and six-cylinder Volvo petrol engines
• Must be weight-matched, measured and checked for straightness during overhaul
• Engine type: Volvo four- and six-cylinder petrol engine
• Quantity varies by assembly, most commonly four

🔌 Function

The connecting rod transfers combustion force from the piston to the crankshaft, converting the piston's reciprocating motion into crankshaft rotation. It also carries the big-end bearing shells that ride on the crankshaft journal.

⚠️ Common Signs of Failure

• Knocking or heavy rapping noise from the lower engine that increases with load
• Low or fluctuating oil pressure caused by worn big-end bearing clearance
• Bearing material or metallic debris found in the oil or filter
• Scored, discoloured or spun big-end bearing shells on inspection
• Bent, twisted or out-of-round rod discovered during rebuild measurement

🛠️ 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

• 1219237 → Supersedes 463021

OEM / Related Numbers

• 463021 earlier number superseded by this part
• 328735 related reference
• 463092 standard small-end bushing
• 463535 0.4mm oversize small-end bushing
• 463090 connecting-rod bolt
• 463643 connecting-rod nut
• 272040 related piston and connecting-rod set

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
• Volvo Penta AQ170B, AQ170C, AQ170A
• Volvo Penta BB115A, BB115B, BB115C
• Volvo Penta BB170B, BB170C, BB170A
• Volvo Penta MB20A, MB20B, MB20C
• Volvo Penta AQ115A, AQ115B
• Volvo Penta AQ120B
• Volvo Penta AQ125A
• Volvo Penta AQ140A
• Volvo Penta AQ145A
• Volvo Penta AQ165A
• Volvo Penta BB140A
• Volvo Penta BB145A
• Volvo Penta BB165A
• Volvo Penta MB10A