Volvo Penta Gasket 859010

Volvo Penta 859010 is a genuine OEM gasket used in selected Volvo Penta diesel cooling-system applications. Volvo Penta’s official parts shop identifies part number 859010 simply as Gasket, and current parts references place it in the Heat Exchanger, After Cooler and Thermostat assembly group.

This is a cooling-side sealing gasket used during service of the related exchanger or thermostat housing assembly. Current replacement references also show 859010 as the active Volvo Penta number replacing earlier part 845301.

Key Features

• Genuine Volvo Penta OEM gasket
• Part number: 859010
• Used in heat exchanger / aftercooler / thermostat applications
• Current dealer listings show approximate weight around 0.005 kg.

Engine Compatibility
Current public source coverage for 859010 is limited at the engine-by-engine level, but available references consistently place it in the heat exchanger / after cooler / thermostat schematic group on Volvo Penta diesel applications. Exact fitment should be confirmed by engine serial number and the specific cooling assembly being serviced.

Serial Number Fitment Notice
Fitment should always be confirmed by engine serial number before ordering. Volvo Penta’s official guidance is to identify the exact engine, shield, or drive when locating the correct replacement part.

When This Part Needs Replacement
Replace this gasket when:

• the heat exchanger, aftercooler, or thermostat housing is being serviced
• the original gasket is compressed, brittle, or damaged
• the sealing joint shows leakage or no longer seals reliably
• the assembly has been opened and needs a fresh gasket for reassembly

Installation Notes

• Confirm fitment by serial number first.
• Match the gasket to the exact cooling-system sealing surface before installation.
• Clean both mating faces fully before reassembly.
• Replace the old gasket during service instead of reusing a compressed seal.

Replaces / Cross Reference Numbers

• 859010
• Replaces / supersedes: 845301.

Parts Desk Insight
This is a small cooling-system gasket, but it sits in an area where reopening the same joint costs far more than the gasket itself. Replacing it during heat exchanger or thermostat service is usually the cleaner move for a more reliable seal.

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