# 3829311 Seawater Pump | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta seawater pump from the Cooling System group, weighing 7.467 kg and listed for 8 applications across TMD and TAMD series engines. It supersedes part number 846354. This is the lightest of the four seawater pumps in this group and the only one listed for TMD engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TMD100C
-   Volvo Penta TMD102A
-   Volvo Penta TMD121C
-   Volvo Penta TMD122A
-   Volvo Penta TAMD71B
-   Volvo Penta TAMD73P-A
-   Volvo Penta TAMD73WJ-A
-   Volvo Penta TAMD121D

-   **Engine Family:** TMD, TAMD

## ⚙️ Key Features

-   7.467 kg — the lightest of the four pumps in this group
-   8 applications across TMD and TAMD series engines
-   Supersedes 846354

## 🔌 Function

Draws raw water in through the hull fitting and pushes it through the heat exchanger and exhaust injection, carrying engine heat overboard.

## ⚠️ Common Signs of Failure

-   Little or no water at the exhaust outlet
-   Coolant or exhaust temperature climbing while raw water flow drops
-   Water weeping from the pump body or dripping from the weep hole below the seal
-   Squealing, rumbling or roughness from the pump as the bearings go
-   Impeller found with vanes worn, torn or missing

## 🛠️ Service Notes

-   If your records show 846354, this is the current number
-   Renew the impeller, cover gasket and any shaft seal at the same time, and check for impeller debris downstream in the heat exchanger
-   Never run a raw water pump dry, even briefly

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3829311 → Supersedes 846354

### OEM / Related Numbers

-   846354 earlier number superseded by this part

### Other-Brand OEM Numbers

-   Johnson Pump: 10-21915-01

### Aftermarket / Verified Equivalents

-   JMP Marine: JPR-V2000

## 📦 Condition

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

## Details

- **Price:** 4392.11 AUD
- **Vendor:** Volvo Penta
- **Type:** Pumps
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4392.11 AUD | In stock |

## Images

- 3829311 Seawater Pump | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3829311-seawater-pump-genuine-volvo-penta)
> Updated: 2026-09-06