# 20557730 Crankcase | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta crankcase used in the cylinder block and crankcase assembly. It is supplied as an individual service component under part number 20557730 and is intended to restore the original fit, sealing, alignment, retention or operating function of the specified assembly. This listing supplies the named component only; adjoining parts are serviced separately.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD520GE
-   Volvo Penta TAD520VE
-   Volvo Penta TAD530GE MECH
-   Volvo Penta TAD530GE EDC4
-   Volvo Penta TAD531GE MECH
-   Volvo Penta TAD531GE EDC4

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Delivered with cylinder liner
-   225.0 kg
-   Listed for 6 applications on TAD series engines

## 🔌 Function

Forms the lower engine structure and contains the crankshaft, oil galleries and internal supports.

## ⚠️ Common Signs of Failure

-   Coolant or oil weeping from the block casting
-   Coolant disappearing with no external leak, pointing to a cracked or eroded liner seat
-   Liner seat cavitated, pitted or stepped on strip-down
-   Main bearing bores worn out of round, or shells picked up
-   Core plug bores corroded and no longer holding a plug

## 🛠️ Service Notes

-   Supplied complete with cylinder liner, so the liner does not need ordering separately
-   Crankcase 20555444 is the alternative in the range, also supplied with liner and applying from serial number 782201 onwards

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20557875 - Related Cover
-   20558135 - Related Feed Line
-   20558136 - Related Return Line
-   20558211 - Related Oil Filler Pipe
-   20558213 - Related O-Ring

## 📦 Condition

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

## Details

- **Price:** 10683.99 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10683.99 AUD | In stock |

## Images

- 20557730 Crankcase | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20557730-crankcase-genuine-volvo-penta)
> Updated: 2026-09-06