# 20511889 Screw | Genuine Volvo Penta Part

## 🔧 Product Description

This genuine Volvo Penta screw is an OEM service component used in the Engine-Control Linkage Screw. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 4-litre TAD4 industrial diesel application. Technical identification: Retaining screw in the mechanical engine-control linkage. In service, it provides the specified clamp load and mechanical retention for the associated assembly. Selection must be confirmed by OEM part number 20511889, the exact model/product number, serial number and installed assembly configuration.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD420VE
-   Volvo Penta TAD620VE
-   Volvo Penta TAD720VE
-   Volvo Penta TAD721VE
-   Volvo Penta TAD420VE
-   Volvo Penta TAD520VE

-   **Engine Family:** TD, TAD

## ⚙️ Key Features

-   OEM part number 20511889
-   Technical distinction: Retaining screw in the mechanical engine-control linkage
-   3 used per assembly

## 🔌 Function

Retains a joint in the mechanical engine control linkage, holding the pivot or bracket in position so lever movement translates accurately into fuel demand.

## ⚠️ Common Signs of Failure

-   Slack or lost motion at the throttle lever
-   Engine speed not returning cleanly to idle
-   Screw found loose or missing at the linkage
-   Worn shank or an elongated hole in the linkage at strip-down

## 🛠️ Service Notes

-   Check the linkage bushings and clevis pins for wear at the same time, as slack there mimics a loose screw

## 📦 Condition

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

## Details

- **Price:** 1.17 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1.17 AUD | In stock |

## Images

- 20511889 Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20511889-screw-genuine-volvo-penta)
> Updated: 2026-08-22