# 3803752 Injection Pump | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta remanufactured electronic injection pump weighing 23.6 kg and listed for one application in the TWD family. The reman catalogue lists this number against TWD1031VE with the electronic control, and puts the mechanical version of the same engine on 3803741 - so the control type, not the weight, is the deciding detail. Its weight is shared almost exactly with the mechanical pump 3803691. It supersedes injection pump 3831148. Supplied on exchange: core deposit 3806752 is charged alongside it and refunded once the old pump is returned.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TWD1031VE

-   **Engine Family:** TWD

## ⚙️ Key Features

-   Electronic
-   23.6 kg
-   Listed in the reman catalogue for TWD1031VE with electronic control
-   Mechanical version of the same engine takes 3803741
-   Supersedes injection pump 3831148

## 🔌 Function

Raises fuel to injection pressure and meters the right quantity to each cylinder in firing order, with the fuelling and timing commanded electronically rather than by a mechanical governor.

## ⚠️ Common Signs of Failure

-   Hard starting, or long cranking before it fires
-   Power loss with pump or fuelling faults logged by the control system
-   Engine speed not following the throttle command
-   Black smoke and uneven running under load
-   Diesel weeping from the pump body or the drive-end seal

## 🛠️ Service Notes

-   Confirm the engine has electronic fuelling control before ordering - the mechanical TWD1031VE pump is 3803741 and the mechanical pumps here weigh the same
-   Prove the wiring, sensors and fault codes before condemning the pump
-   Have the pump timed and its settings checked on fitting; core deposit 3806752 is refunded on return of the core

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3803752 → Supersedes 3831148

### OEM / Related Numbers

-   3831148 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 13350.62 AUD
- **Vendor:** Volvo Penta
- **Type:** Exchange & Reman Units
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13350.62 AUD | In stock |

## Images

- 3803752 Injection Pump | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3803752-injection-pump-genuine-volvo-penta)
> Updated: 2026-09-19