# 23574171 Big-End Bearing Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta O.S. 0.75mm connecting-rod big-end bearing shell pair for selected D5 and D8 crankshaft assemblies. One kit services one connecting-rod journal. Six kits are required for a complete six-cylinder D8 engine; four kits are required for a four-cylinder D5 engine.

## 🚤 Compatibility

-   **Engine Family:** TAD, D, TADH

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta OEM big-end bearing kit
-   Correct Volvo Penta part number 23574171
-   Crankpin grade: O.S. 0.75mm
-   Matched upper and lower connecting-rod bearing shells
-   Selected only after crankpin diameter and oil clearance are measured
-   Quantity varies by assembly, most commonly six

## 📋 Kit Contents

-   Upper connecting-rod bearing shell - supplied under kit number 23574171 - quantity 1
-   Lower connecting-rod bearing shell - supplied under kit number 23574171 - quantity 1
-   Complete six-cylinder D8 engine requires quantity 6 of this kit
-   Complete four-cylinder D5 engine requires quantity 4 of this kit

## 🔌 Function

The shells form the hydrodynamic bearing between one connecting rod and crankshaft crankpin, transmitting combustion loads while maintaining a pressurised oil film.

## ⚠️ Common Signs of Failure

-   Sharp connecting-rod knock that increases under load
-   Bearing metal or copper visible in the oil filter
-   Crankpin or shells scored, overheated or wiped
-   Incorrect undersize fitted after crankshaft grinding

## 🛠️ Service Notes

-   Crankpin grade: O.S. 0.75mm.
-   Do not mix bearing grades on the same crankpin.
-   Measure crankpin diameter, taper, ovality and installed oil clearance before assembly.
-   Replace connecting-rod bolts where required by the Volvo Penta workshop procedure.

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   23574171 → Supersedes 21939716

### OEM / Related Numbers

-   21939716 earlier number superseded by this part
-   21908108 earlier/corresponding standard big-end bearing kit
-   22720415 related earlier standard bearing reference
-   23574167 standard-size kit
-   23574168 0.07mm undersize kit
-   23574169 0.25mm undersize kit
-   23574170 0.50mm undersize kit
-   23573146-23573159 related split-position main-bearing family

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP
-   Volvo Penta TAD840GE, TAD840-43VE, TAD840GE-B
-   Volvo Penta TAD880-82GE, TAD880-84VE
-   Volvo Penta TADH880-82GE, TADH880-84VE
-   Volvo Penta TAD540-42VE
-   Volvo Penta TAD550-51VE
-   Volvo Penta TAD552VE
-   Volvo Penta TAD570-72VE
-   Volvo Penta TAD580-83VE
-   Volvo Penta TAD841-43GE
-   Volvo Penta TAD850-52VE
-   Volvo Penta TAD851-53GE
-   Volvo Penta TAD853VE
-   Volvo Penta TAD870-73VE

## Details

- **Price:** 73.51 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 73.51 AUD | In stock |

## Images

- 23574171 Big-End Bearing Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/23574171-big-end-bearing-kit-genuine-volvo-penta)
> Updated: 2026-09-06