# 20850096 Big-End Bearing Kit | Genuine Volvo Penta Part

## 🔧 Product Description

Volvo Penta lists this part as the big end bearing kit supplied inside its published overhaul kits. It appears in 2 of them: 3884935 for TAD650VE; 3884936 for TAD660VE.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD650VE
-   Volvo Penta TAD660VE

-   **Engine Family:** TAD
-   **Year Range:** Approximately late 1990s-late 2000s

## ⚙️ Key Features

-   Genuine Volvo Penta OEM standard big-end bearing kit
-   Correct Volvo Penta part number 20850096
-   Standard crankshaft journal size
-   Engine type: Volvo Penta six-cylinder turbocharged industrial diesel
-   Listed by Volvo Penta as the big end bearing kit in its overhaul kits
-   6 off in overhaul kit 3884935 (TAD650VE)
-   6 off in overhaul kit 3884936 (TAD660VE)
-   Used in overhaul kits: 3884935 x6 (TAD650VE); 3884936 x6 (TAD660VE)

## 📋 Kit Contents

-   Upper connecting-rod bearing shell - supplied under kit number 20850096 - quantity 1
-   Lower connecting-rod bearing shell - supplied under kit number 20850096 - quantity 1
-   Six kits are required for a complete six-cylinder engine

## 🔌 Function

The bearing shells provide the replaceable low-friction surface between the connecting rod and crankshaft journal while maintaining the specified oil clearance.

## ⚠️ Common Signs of Failure

-   Knocking from the lower engine
-   Copper or bearing material in the oil
-   Crankpin scoring
-   Excessive bearing clearance measured during overhaul

## 🛠️ 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
-   Volvo Penta's overhaul kits call for 6 off of this part

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   VOE20850096
-   Deutz / KHD: 02931578
-   Kolbenschmidt: 79411600
-   Kolbenschmidt component shells: 60162600
-   Kolbenschmidt component shells: 60163600
-   MAHLE: 099 PS 91252 000

### Aftermarket / Verified Equivalents

-   SLP: CRP-096
-   IPSA: CR037800

## 📦 Condition

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

## Details

- **Price:** 71.42 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 71.42 AUD | In stock |

## Images

- 20850096 Big-End Bearing Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20850096-big-end-bearing-kit-genuine-volvo-penta)
> Updated: 2026-08-22