# 21165753 Nozzle | Genuine Volvo Penta Part

## 🔧 Product Description

A precision multi-hole nozzle fitted to D12/TAD12 unit injectors. It opens at the calibrated pressure generated inside the injector and atomises fuel into a spray pattern matched to the combustion bowl.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD1241VE
-   Volvo Penta TAD1242VE
-   Volvo Penta TAD1241-42VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Multi-hole spray geometry matched to D12 combustion chambers
-   Supersedes earlier Volvo nozzle references 888761 and 860557 where specified
-   Requires specialist injector assembly and calibration equipment
-   Engine type: 12-litre unit-injector diesel fuel-injection system

## 🔌 Function

Meters and atomises high-pressure diesel fuel into the cylinder in the specified spray pattern.

## ⚠️ Common Signs of Failure

-   Unstable idle, misfire or reduced power
-   Fuel leakage or air ingress
-   Injection or fuel-pressure fault codes
-   Excessive smoke, combustion knock or uneven exhaust temperature

## 🛠️ 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 Supersession Chain

-   21165753 → Supersedes 888761
-   888761 → Supersedes 860557 where specified

### OEM / Related Numbers

-   888761 related reference
-   860557 related reference
-   21160093 - related unit-injector family
-   276940 - injector repair kit
-   276948 - injector sealing kit

### Other-Brand OEM Numbers

-   Bosch 0 433 172 113
-   Bosch DLLA 146 P 1823

### OEM Reman Alternatives

-   3801293 - remanufactured injector

## 📦 Condition

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

## Details

- **Price:** 386.23 AUD
- **Vendor:** Volvo Penta
- **Type:** Injectors & Injection
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 386.23 AUD | In stock |

## Images

- 21165753 Nozzle | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21165753-nozzle-genuine-volvo-penta)
> Updated: 2026-10-10