# 3835811 Insert | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta insert from the Cooling System group, weighing 14.97 kg and listed for 8 applications on TAMD series engines. It supersedes part number 3826781. At almost 15 kg this is the internal core element rather than a small fitting.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAMD75P-A
-   Volvo Penta TAMD74P-A
-   Volvo Penta TAMD74P-B
-   Volvo Penta TAMD74A
-   Volvo Penta TAMD74C-A
-   Volvo Penta TAMD74C-B
-   Volvo Penta TAMD74L-A
-   Volvo Penta TAMD74L-B

-   **Engine Family:** TAMD

## ⚙️ Key Features

-   14.97 kg
-   Supersedes 3826781
-   8 applications on TAMD series engines
-   Cooling System group

## 🔌 Function

Forms the internal heat transfer core inside its housing, keeping the two circuits separate while passing heat between them.

## ⚠️ Common Signs of Failure

-   Cooling performance falling off under load
-   Coolant or oil loss with no visible external leak
-   Cross-contamination between the two circuits
-   Tubes furred, scaled or blocked with debris
-   Corrosion pitting or splits in the tube walls

## 🛠️ Service Notes

-   A 15 kg core needs careful handling, as the tubes are easily damaged out of the housing
-   Renew all the o-rings and end seals with the insert, and pressure test after assembly
-   As the replacement for 3826781, compare the length and end details with the old core

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   3835811 → Supersedes 3826781

### OEM / Related Numbers

-   3826781 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 10666.56 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10666.56 AUD | In stock |

## Images

- 3835811 Insert | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3835811-insert-genuine-volvo-penta)
> Updated: 2026-09-06