# 3857778 Volvo Sump | Genuine Used Part

## 🔧 Product Description

**Genuine Volvo Penta GM Small-Block Engine Oil Sump - Part Number: 3857778**

A genuine used Volvo Penta oil sump for selected GM-based small-block petrol marine engines.

The stamped-steel pan stores the engine's lubricating oil and provides the correct clearance and pickup depth for the marine oil-pump system. It uses the one-piece rear-main-seal GM small-block pattern.

## ⚙️ Key Features

-   Genuine used Volvo Penta oil sump
-   Correct OEM part number 3857778
-   Small-block GM marine oil-pan design
-   Suitable for one-piece rear-main-seal engines
-   Original drain and mounting configuration
-   Supersedes Volvo part numbers 855826, 855897 and 856437

## 🚤 Compatibility

### Commonly used on

-   Volvo Penta GM small-block petrol sterndrive and inboard engines

### Typically suits

-   Volvo Penta 5.0Gi, 5.0GXi and 5.0GXiE
-   Volvo Penta 5.7Gi, 5.7Gi-300, 5.7GXi and 5.7GXiE
-   Volvo Penta 5.7OSi and 5.7OSXi
-   Selected MerCruiser, OMC, Indmar and Marine Power 5.0L, 5.7L and compatible 6.2L small-block engines
-   Engine Type: GM small-block V8 petrol marine engine
-   Engine Capacity: Primarily 5.0L / 305 CID and 5.7L / 350 CID
-   Production Range: Generally 1987 and newer one-piece rear-main-seal engines
-   Fitment Note: Confirm sump shape, dipstick side and drain arrangement

## 🔌 Function

The sump stores the engine oil and keeps the pump pickup submerged while providing clearance around the crankshaft and marine installation.

## ⚠️ Common Signs of Failure

-   Oil leaks through corrosion or pinholes
-   Drain-plug threads are damaged
-   Mounting flange is distorted
-   Pan is dented into the oil pickup
-   Internal rust or sludge is present
-   Oil level becomes difficult to maintain
-   Gasket sealing surface is pitted

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3857778 cross-references Volvo Penta 3859008 on replacement listings
-   MerCruiser 809910 / 809910T1 and 8M0150300 are verified cross-brand references
-   OMC and other GM marine brands use equivalent small-block sump designs

### OEM / Related Numbers

-   3857778
-   3859008
-   MerCruiser 809910
-   MerCruiser 809910T1
-   MerCruiser 8M0150300
-   OMC / Ford-Industrial cross listing FI1101295
-   3856138 related gasket kit
-   3852744 related internal baffle
-   3856125 related oil pump
-   8M0150304 related replacement sump gasket

### Aftermarket / Verified Equivalents

-   Sierra: 18-0612 - small-block stamped-steel oil pan
-   Recmar: REC809910 - replacement oil pan
-   MerCruiser / Quicksilver: 809910T1 or 8M0150300
-   Marine aftermarket pans cross-listed to 3857778, 3859008 and 809910

## 📦 Condition

-   Genuine used part
-   Removed from running engine where applicable
-   In good working condition unless otherwise stated

## Details

- **Price:** 450.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Type:** Engine Components
- **Tags:** Sawley’s AAM Used Parts – Oil Pumps & Components | Engine Lubrication Systems

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 450.00 AUD | In stock |

## Images

- 3857778 Volvo Sump | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3857778-volvo-sump-genuine-used-part)
> Updated: 2026-09-05