# 3806737 Injection Pump Core | Genuine Volvo Penta Part

## 🔧 Product Description

Injection pump core deposit, from the Fuel System group. It carries the charge that goes on when the exchange pump is supplied and comes off again when the old pump is handed back. No hardware moves against the line itself, so ordering it alone brings nothing to the boat. Under Volvo Penta's core numbering the exchange unit it belongs to takes part number 3803737, which is the number to quote for the pump itself. All sixty lines in this run are injection pump cores under the same name, and nothing published against them names an engine, so order the number that matches the pump actually coming off.

## ⚙️ Key Features

-   Core deposit line, not an injection pump you can fit
-   Belongs with the exchange unit, part number 3803737
-   Refunded when the old injection pump is returned
-   No engine application published against the line, so order by part number
-   Fuel System group

## 🔌 Function

The line's job is to hold the refundable deposit until the old unit is back; the pump it stands against raises fuel to injection pressure and doses each cylinder in turn, setting how much fuel the engine gets and when it gets it.

## ⚠️ Common Signs of Failure

-   This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the injection pump being exchanged
-   The engine down on one bank or one cylinder with no injector, compression or valve fault behind it
-   The governor sticking, so the engine is slow to answer the throttle or runs past the setting
-   Idle hunting or surging, with the revolutions never settling

## 🛠️ Service Notes

-   The charge is refunded when the worn injection pump is returned, so keep the old pump and send it back rather than scrapping it
-   Ordering this number on its own supplies no part - it goes on the order beside the exchange unit, part number 3803737
-   Cap the pump's ports and the engine's fuel connections the moment the old unit comes off - dirt getting in is what undoes an exchange

## 📦 Condition

-   Refundable core deposit - not a physical part

## Details

- **Price:** 2530.0 AUD
- **Vendor:** Volvo Penta
- **Type:** Exchange & Reman Units
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2530.00 AUD | In stock |

## Images

- 3806737 Injection Pump Core | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3806737-injection-pump-core-genuine-volvo-penta)
> Updated: 2026-09-06