# 20405851 Nozzle | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta precision injector nozzle used in the mechanical injector fitted to TAD520VE and TAD720VE-family engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD720VE
-   Volvo Penta TAD520VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Multi-hole mechanical diesel injector nozzle
-   Deutz reference 0211 1698
-   Used inside injector 20451317 / Volvo Penta exchange injector 3803652 where specified
-   Injector opening pressure and spray pattern must be calibrated after assembly
-   Engine type: Volvo Penta / Deutz 1013-family mechanical-injection diesel

## 🔌 Function

Meters and atomises high-pressure diesel fuel into the combustion chamber at the specified spray angle and droplet size.

## ⚠️ Common Signs of Failure

-   Black or white exhaust smoke
-   Uneven idle or cylinder misfire
-   Nozzle dribble, poor atomisation or incorrect opening pressure

## 🛠️ Service Notes

-   Work scrupulously clean — a nozzle is a precision component with fine machined orifices, and grit carried in on a fingertip or a rag is enough to ruin it
-   Never poke, ream or wire-brush the holes or the seat; if a nozzle is blocked or its spray pattern is disturbed, renew it
-   Cap or plug the open fuel or oil way while the nozzle is out so nothing can drop into the passage
-   Fit new sealing washers, seals or O-rings, clean the seat in the housing and check that seat is undamaged before the nozzle goes back
-   Tighten to the figure and sequence given in the workshop manual for your engine; a nozzle pulled down unevenly or over-tightened will distort and leak

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   DLLA158P730 - Bosch nozzle designation
-   0211 1698 - Deutz reference
-   20451317 - related complete injector

### Other-Brand OEM Numbers

-   Bosch: DLLA158P730
-   Deutz: 0211 1698

### OEM Reman Alternatives

-   3803652 - related Volvo Penta exchange injector

## 📦 Condition

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

## Details

- **Price:** 205.49 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 205.49 AUD | In stock |

## Images

- 20405851 Nozzle | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20405851-nozzle-genuine-volvo-penta)
> Updated: 2026-08-22