# 21150947 Oil Cooler Kit | Genuine Volvo Penta Part

## 🔧 Product Description

A complete replacement transmission-oil cooler package for HS1A and HS1E-A reversing gears. It replaces the earlier 872626 cooler installation and removes heat from the transmission oil through the engine's raw-water circuit. The cooler is approximately 3 inch shell diameter with a 9 inch bundle, taking 1 1/4 inch water connections and 1/2 inch NPT oil ports.

## 🚤 Compatibility

-   **HP Range:** Approximately 300 HP
-   **Year Range:** Approximately 1990s-2000s

## ⚙️ Key Features

-   Transmission oil-to-water heat exchanger
-   Cooler approximately 3 in shell by 9 in bundle
-   1 1/4 in water connections and 1/2 in NPT oil ports
-   1.39 kg
-   Specified for HS1A and HS1E-A reversing gears
-   Replaces earlier cooler 872626
-   Engine type: Volvo Penta hydraulic marine reversing gear

## 📋 Kit Contents

-   1 x complete transmission oil cooler assembly - current service package 21150947
-   Earlier cooler assembly 872626 is replaced by the kit
-   Installation hoses, brackets and fittings must be checked against the transmission diagram and are not confirmed as included unless present in the sealed Volvo package

## 🔌 Function

Transfers heat from the reversing-gear oil to the raw-water flow, maintaining oil viscosity and protecting the transmission clutch and bearings.

## ⚠️ Common Signs of Failure

-   Transmission oil temperature is consistently high
-   Coolant or seawater contaminates the transmission oil
-   Oil appears in the raw-water discharge
-   Cooler tubes are internally blocked or externally corroded
-   Transmission shifts poorly after the oil becomes overheated

## 🛠️ Service Notes

-   Oil-cooler kit 21116456 for the HS25A and HS45A gears carries the same cooler dimensions and port sizes, so size is no guide - order by the transmission model

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   21150947 → Supersedes 872626

### OEM / Related Numbers

-   872626 earlier oil cooler assembly

### Aftermarket / Verified Equivalents

-   Mr Cool: MRC872626 copper-nickel transmission oil cooler
-   Aftermarket 872626-compatible cooler: approximately 3-inch shell diameter, 9-inch tube bundle, 1.25-inch water connection and 1/2-inch NPT oil ports
-   Lenco: 872626-7

## 📦 Condition

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

## Details

- **Price:** 3503.24 AUD
- **Vendor:** Volvo Penta
- **Type:** Service & Repair Kits
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3503.24 AUD | In stock |

## Images

- 21150947 Oil Cooler Kit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21150947-oil-cooler-kit-genuine-volvo-penta)
> Updated: 2026-10-07