# 8642491 Thrust Bearing | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta thrust bearing from the Engine group, weighing 0.077 kg. It supersedes part number 31251597, and is listed alongside thrust bearings 8642492 and 8642493, which supersede 31251598 and 31251599 in the same sequence.

## ⚙️ Key Features

-   0.077 kg
-   Supersedes 31251597
-   Listed with thrust bearings 8642492 and 8642493
-   Also supersedes Volvo part number 274486

## 🔌 Function

Takes the endwise thrust of the shaft it supports, holding the endfloat within its limits.

## ⚠️ Common Signs of Failure

-   Endfloat measuring outside its limits
-   Knocking or movement felt along the shaft axis
-   Bearing faces scored, wiped or with the overlay worn through
-   Bearing material found in the oil or the filter
-   Oil pressure falling as clearances open up

## 🛠️ Service Notes

-   The three thrust bearings listed here are supplied as a sequence and the listing gives no size grade, so order by part number and measure the endfloat on assembly
-   Check the shaft thrust faces for wear or scoring before fitting new bearings

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   8642491 → Supersedes 31251597

## 📦 Condition

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

## Details

- **Price:** 100.05 AUD
- **Vendor:** Volvo Penta
- **Type:** Bearings & Bushings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 100.05 AUD | In stock |

## Images

- 8642491 Thrust Bearing | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/8642491-thrust-bearing-genuine-volvo-penta)
> Updated: 2026-10-09