# 21282005 Water Pump | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta MD22 Engine Coolant Water Pump - Part Number: 21282005

  

Genuine Volvo Penta engine-coolant circulation pump for MD22-family marine diesels. It replaces earlier pump references 861578 and 859774 and circulates fresh coolant through the cylinder block, cylinder head and heat exchanger.

  

⚙️ Key Features

  

• Genuine Volvo Penta coolant circulation pump

• Confirmed MD22-family application

• Supersedes 861578 and 859774

• Complete pump housing, shaft, bearing and impeller assembly

• Documented Crom Marine equivalent available

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21282005 → Supersedes 861578

• 861578 → Supersedes 859774

• 859774 (earlier water-pump reference)

  

OEM / Related Numbers:

  

• 21282005 - current OEM reference

  

Aftermarket / Verified Equivalents:

  

• Crom Marine: 115279

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta MD22 marine diesel closed-cooling system

  

Typically suits:

  

• Engine models:

• MD22A

• MD22A-A

• MD22L-A

• TMD22A

• TMD22-A

• MD22

• MD22L

  

• Serial / Specification Control: Engine variant, pump pulley and housing revision must match.

• HP Range: MD22-family rating dependent

• Engine Type: Volvo Penta MD22 four-cylinder marine diesel

• Year Range: MD22-family production; engine-serial controlled

  

🔌 Function

  

Circulates fresh coolant through the engine and heat exchanger to control operating temperature.

  

Common signs of failure:

  

• Coolant leakage from the seal or housing

• Overheating despite correct coolant level

• Bearing noise, shaft play or pulley wobble

• Reduced circulation caused by impeller damage or corrosion

• Repeated temperature alarms at sustained load

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 680.43 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 680.43 AUD | In stock |

## Images

- 21282005 Water Pump | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21282005-water-pump-genuine-volvo-penta)
> Updated: 2026-08-02