23573147 Main Bearing Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D5 / D8 Standard Main Bearing Shell Kit - Positions 1, 3, 5 and 7 - Part Number: 23573147

A genuine Volvo Penta STD crankshaft main-bearing shell pair for the split-position D5/D8 crankshaft architecture.

This kit is used only at main-bearing positions 1, 3, 5 and 7. A complete seven-journal engine requires 4 of this kit together with the matching 23573146 kit for positions 2, 4 and 6.

⚙️ Key Features

• Genuine Volvo Penta OEM main-bearing kit

• Correct Volvo Penta part number 23573147

• Bearing grade: STD

• Position group: 1, 3, 5 and 7

• Complete engine uses 4 of this kit plus the matching position-group kit 23573146

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 23573147 current Volvo Penta split-position main-bearing reference

• No universal supersession to the all-position bearing family; crankshaft architecture controls selection

OEM / Related Numbers:

• 23573147

• 23573146 matching STD kit for positions 2, 4 and 6

• 23573146 / 23573147 standard split-position pair

• 23573149 / 23573150 0.07mm split-position pair

• 23573152 / 23573153 0.25mm split-position pair

• 23573155 / 23573156 0.50mm split-position pair

• 23573158 / 23573159 0.75mm split-position pair

• 22259957 / 23499001 related crankshaft references depending on engine revision

• 23574167-23574171 related connecting-rod bearing grades

Kit Contents:

• Upper main-bearing shell for positions 1, 3, 5 and 7 - supplied under kit number 23573147 - quantity 1

• Lower main-bearing shell for positions 1, 3, 5 and 7 - supplied under kit number 23573147 - quantity 1

• Complete seven-journal engine requires quantity 4 of this kit

• Matching kit 23573146 is required for positions 2, 4 and 6

Aftermarket / Verified Equivalents:

• MOPA Motorparts replacement bearing kit: comparison number 23573147

🚤 Compatibility

Commonly used on:

• Volvo Penta D5/D8 crankshaft overhaul

• Replacement of main-bearing journals at positions 1, 3, 5 and 7

Typically suits:

• Engine / Drive models:

• TAD540VE / TAD541VE / TAD542VE

• TAD550VE / TAD551VE / TAD552VE

• TAD570VE / TAD571VE / TAD572VE

• TAD580VE / TAD581VE / TAD582VE / TAD583VE

• TAD840GE / TAD840GE-B

• TAD840VE / TAD841VE / TAD842VE / TAD843VE

• TAD850VE / TAD851VE / TAD852VE / TAD853VE

• TAD870VE / TAD871VE / TAD872VE / TAD873VE

• TAD880GE / TAD881GE / TAD882GE

• TAD880VE / TAD881VE / TAD882VE / TAD883VE / TAD884VE

• D8A1-A MP / D8A2-A MP / D8A3-A MP / D8A4-A MP

• D8A5-A MH / D8A6-A MH / D8A5-A MG / D8A6-A MG where the split-position crankshaft diagram is specified

• Bearing Selection Notes:

• Machining grade: STD.

• Install only at positions 1, 3, 5 and 7.

• Use matching kit 23573146 at positions 2, 4 and 6.

• Confirm whether the engine uses crankshaft 22259957, 23499001 or another serial-specific revision before ordering.

• Measure each journal after crankshaft machining; do not select an undersize by engine model alone.

• HP Range: Application-dependent across D5 and D8 marine, industrial and generating-set ratings

• Engine / Drive Type: Volvo Penta inline 4- or 6-cylinder D5/D8 diesel with split-position main-bearing shells

• Year Range: Engine-generation dependent; confirm the crankshaft part number and serial-numbered diagram

🔌 Function

The bearing-shell pair supports the assigned crankshaft main journal on a pressurised oil film and maintains the correct running clearance.

Common signs of failure or incorrect fitment:

• Low or unstable engine-oil pressure

• Main-bearing rumble or crankshaft knock

• Bearing metal found in the lubricant or filter

• Shells scored, fretted or heat-damaged

• Odd- and even-position shell families mixed or installed in the wrong journals

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging