# 21330056 Plug | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine threaded plug used to close the assigned oil, coolant, fuel or machining passage.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D2-55F
-   Volvo Penta D2-50F
-   Volvo Penta D2-75F
-   Volvo Penta D2-60F

-   **Engine Family:** D
-   **HP Range:** 50-75 HP

## ⚙️ Key Features

-   Precision thread and sealing face
-   Correct OEM installation depth
-   Designed for the assigned fluid and pressure
-   Direct replacement

## 🔌 Function

The plug closes the designated passage and prevents leakage or contamination entry.

## ⚠️ Common Signs of Failure

-   Rounded drive
-   Plug loosening or cracked sealing area

## 🛠️ Service Notes

-   Clean the threads and the seating face before fitting, and make sure the opening itself is clear of old sealant, swarf and corrosion
-   Renew the sealing washer or O-ring where one is fitted rather than reusing a flattened one, and only use thread sealant where the workshop manual for your engine calls for it
-   Tighten to the figure given in the workshop manual for your engine — plugs in aluminium and other soft castings strip easily, and a plug pulled up hard to cure a leak usually distorts the seat and makes it worse
-   Where the plug closes an oil, fuel or coolant passage, run the engine up to temperature afterwards and check the joint under pressure before signing the job off
-   Keep removed plugs paired with the holes they came out of during a strip-down — plugs of very similar appearance often differ in thread, reach or sealing type

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21330056 → Supersedes 21194526

### OEM / Related Numbers

-   21194526 earlier number superseded by this part
-   21541019 - Oil pump
-   21188176 - Idler gear
-   21188306 - Shaft
-   3580570 - Oil-pump rotor
-   21188141 - Cover
-   3583551 - Oil sump

## 📦 Condition

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

## Details

- **Price:** 34.89 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 34.89 AUD | In stock |

## Images

- 21330056 Plug | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21330056-plug-genuine-volvo-penta)
> Updated: 2026-08-22