# 24158407 Rocker Arm | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta rocker arm from the Engine group, weighing 1.0 kg and listed for one TWD series engine application. It supersedes part number 21415399.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TWD1744GE

-   **Engine Family:** TWD

## ⚙️ Key Features

-   Rocker arm for TWD series engines
-   1.0 kg
-   Supersedes 21415399
-   Listed for one TWD series application

## 🔌 Function

Transfers the pushrod's motion to the valve, pivoting on its shaft to push the valve open against its spring.

## ⚠️ Common Signs of Failure

-   Ticking or tapping from the valve gear that rises with engine speed
-   Valve clearances drifting out of specification between services
-   Pad or tip worn hollow, pitted or scuffed
-   Bore or bush worn, giving side play on the shaft
-   Adjuster thread damaged, seized or the locknut no longer holding

## 🛠️ Service Notes

-   Check the matching pushrod end and valve tip for the same wear before fitting - a worn rocker rarely fails alone
-   Reset the valve clearances after fitting and re-check them after the first run
-   The earlier reference 21415399 points to this part

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   24158407 → Supersedes 21415399 → Supersedes 21316397 → Supersedes 21282816 → Supersedes 21227717 → Supersedes 21161745 → Supersedes 21160810 → Supersedes 20888089 → Supersedes 20964532 → Supersedes 20794057 → Supersedes 24425363

### OEM / Related Numbers

-   21415399 earlier number superseded by this part
-   21316397 earlier number superseded by this part
-   21282816 earlier number superseded by this part
-   21227717 earlier number superseded by this part
-   21161745 earlier number superseded by this part
-   21160810 earlier number superseded by this part
-   20888089 earlier number superseded by this part
-   20964532 earlier number superseded by this part
-   20794057 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 754.15 AUD
- **Vendor:** Volvo Penta
- **Type:** Engine Components
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 754.15 AUD | In stock |

## Images

- 24158407 Rocker Arm | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/24158407-rocker-arm-genuine-volvo-penta)
> Updated: 2026-09-19