# 21839748 Dipstick | Genuine Volvo Penta Part

## 🔧 Product Description

Calibrated engine-oil dipstick used in the TAD1250-TAD1252 lubrication system. It works with sealing O-ring 949187 and is marked for the correct sump and installation angle.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD1250VE
-   Volvo Penta TAD1251VE
-   Volvo Penta TAD1252VE
-   Volvo Penta TAD1250-52VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Factory oil-level calibration
-   Correct blade length and stop position
-   Used with O-ring 949187
-   Designed for TAD1250-TAD1252 engines
-   Direct replacement measuring stick
-   Engine type: 12-litre 6-cylinder turbocharged industrial diesel

## 🔌 Function

Provides a repeatable manual indication of engine-oil level at the factory measuring point.

## ⚠️ Common Signs of Failure

-   Level markings worn, polished away or no longer legible
-   Blade bent or twisted so it fouls the tube and reads high or low
-   Oil weeping or misting from around the dipstick where it enters the tube
-   Dipstick not seating fully, or lifting out of the tube in service
-   Readings inconsistent between checks taken on level ground

## 🛠️ Service Notes

-   Renew O-ring 949187 when the dipstick is fitted, as an oil leak at the tube is normally the seal rather than the stick
-   Supersedes 3807083, so an order placed against the old number is filled with this dipstick
-   Confirm the reading against a known oil quantity after fitting, since the blade length and stop position set the calibration

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21839748 → Supersedes 3807083

### OEM / Related Numbers

-   3807083 earlier number superseded by this part
-   949187 (related O-ring)

## 📦 Condition

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

## Details

- **Price:** 154.24 AUD
- **Vendor:** Volvo Penta
- **Type:** Oil & Lubrication
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 154.24 AUD | In stock |

## Images

- 21839748 Dipstick | Genuine Volvo Penta Part
- 21839748 Dipstick | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21839748-dipstick-genuine-volvo-penta)
> Updated: 2026-09-18