# 3801919 Unit Injector Exch | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta remanufactured injector from the Fuel System group, weighing 1.261 kg and listed for one application in the TAD series. It supersedes part number 3801895, catalogued earlier as a unit injector. Injector 3801897 at 1.272 kg and injector 3801978 at 1.225 kg are its close neighbours on weight, so the application and part number are what count. This unit is supplied on an exchange basis: core deposit 3804919 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

## ⚙️ Key Features

-   1.261 kg
-   One listed TAD series application
-   Supersedes 3801895, catalogued earlier as a unit injector
-   Remanufactured exchange unit

## 🔌 Function

Meters, pressurises and atomises the fuel charge for one cylinder under the engine control system's timing.

## ⚠️ Common Signs of Failure

-   Misfire or rough running on one cylinder
-   White or black smoke and a smell of unburnt fuel
-   Hard knock from one cylinder under load
-   Hard starting and rising fuel consumption
-   Fuel in the oil, showing as a rising oil level

## 🛠️ Service Notes

-   Three remanufactured injectors here sit between 1.22 kg and 1.27 kg, so identify the part by engine application rather than weight
-   Renew the sealing rings and copper washer and clean the bore before fitting
-   Reset the injector and rocker adjustment to specification if the engine uses unit injectors
-   Core deposit 3804919 is charged with this unit and refunded when the old one is returned - order both together

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3801919 → Supersedes 3801895 → Supersedes 3801809

### OEM / Related Numbers

-   3801895 earlier number superseded by this part
-   3801809 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 1889.31 AUD
- **Vendor:** Volvo Penta
- **Type:** Exchange & Reman Units
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1889.31 AUD | In stock |

## Images

- 3801919 Unit Injector Exch | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3801919-unit-injector-exch-genuine-volvo-penta)
> Updated: 2026-09-06