# 3801912 Injector Exch | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta remanufactured injector from the Fuel System group, weighing 0.498 kg and listed for 3 applications in the TAD series. It sits with the other half-kilo injectors here - 3801855 at 0.506 kg and 3801854 at 0.510 kg - so weight will not separate them and the application list decides the order. This unit is supplied on an exchange basis: core deposit 3804912 is charged alongside it and refunded once the old unit is returned, so both numbers appear on the order.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD841-43GE
-   Volvo Penta TAD851-53GE
-   Volvo Penta TAD840GE-B

-   **Engine Family:** TAD

## ⚙️ Key Features

-   0.498 kg
-   3 listed TAD series applications
-   Remanufactured exchange unit
-   Order by application - three injectors here sit near 0.50 kg
-   6 used per assembly

## 🔌 Function

Atomises the fuel charge into the combustion chamber at high pressure and at the timing the control system demands.

## ⚠️ Common Signs of Failure

-   Rough idle or a misfire on one cylinder
-   White or black smoke and a smell of raw fuel
-   Diesel knock from one cylinder under load
-   Hard starting and rising fuel consumption
-   Fuel diluting the engine oil

## 🛠️ Service Notes

-   Renew the copper seat washer and sealing rings, and make sure the old washer is not left in the bore
-   Change the fuel filters and check the return line restriction at the same time
-   If one injector has failed on contamination, have the others tested before they follow
-   Core deposit 3804912 is charged with this unit and refunded when the old one is returned - order both together

## 📦 Condition

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

## Details

- **Price:** 667.54 AUD
- **Vendor:** Volvo Penta
- **Type:** Exchange & Reman Units
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 667.54 AUD | In stock |

## Images

- 3801912 Injector Exch | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3801912-injector-exch-genuine-volvo-penta)
> Updated: 2026-09-06