Impellers for inboard engine pumps

The water pump impeller is the heart of your inboard engine's cooling system. A worn or damaged impeller can cause overheating and serious engine damage. That's why it's crucial to choose quality replacements, specifically designed for your engine model.

Here you'll find Cef Marine and Osculati impellers, made with materials resistant to seawater and high temperatures. Carefully check the dimensions (A, B, C in mm) and the number of blades indicated in the product sheet to ensure compatibility.

Common Problems:

• Wear: The blades wear down due to friction and cavitation.


• Breakage: Fragments of an old impeller can block the cooling circuit.


• Incompatibility: The wrong impeller won't guarantee proper water flow.

When to Replace Your Impeller

The golden rule is to replace your impeller at least once a year, or every 200 hours of operation. Even if the impeller looks to be in good condition, the rubber may have hardened, reducing cooling efficiency.

Symptoms of an Impeller Needing Replacement:

• Engine overheating.


• Insufficient water flow from the exhaust.


• Worn or damaged appearance of the blades.

The Officina Basile Tip

Don't wait for the engine to go into alarm! Always carry a spare impeller with you. A quick fix can save you from costly engine damage and a ruined day at sea.

• Fast shipping throughout Italy.


• High-quality original and compatible spare parts.


• Pre- and post-sales technical advice.


• Satisfaction guaranteed or your money back.

Complete the maintenance of your engine cooling pump with specific lubricating oil for the mechanical seal (ask the workshop for the right product).

FAQ - Frequently Asked Questions

Is the impeller suitable for my engine?

Always check the dimensions (A, B, C in mm) and the engine code on your inboard's nameplate. Compare this data with the specifications indicated in the product sheet. If in doubt, contact us: we have exploded views of almost all engines in circulation.

How often should the impeller be replaced?

At least once a year, or every 200 hours of operation. In case of intensive use or in particularly dirty waters, it is advisable to replace it more frequently.

What happens if I don't replace the impeller?

The engine can overheat, causing damage to the cylinder head, gaskets and, in the most serious cases, melting of the engine block. Such a failure involves very high repair costs.

Can I fit a compatible impeller instead of the original one?

Yes, provided that the compatible impeller meets the same dimensions and technical specifications as the original. Opt for reliable brands such as Cef Marine and Osculati, which guarantee the quality of the materials and the precision of the measurements.

How can I extend the life of the impeller?

Avoid starting the engine dry, making sure that the seacock is open and that the water circulates correctly. Periodically check the condition of the impeller and replace it as soon as you notice signs of wear or damage.

Is the impeller suitable for my engine?

Always check the dimensions (A, B, C in mm) and the engine code on your inboard's nameplate. Compare this data with the specifications indicated in the product sheet. If in doubt, contact us: we have exploded views of almost all engines in circulation.

How often should the impeller be replaced?

At least once a year, or every 200 hours of operation. In case of intensive use or in particularly dirty waters, it is advisable to replace it more frequently.

What happens if I don't replace the impeller?

The engine can overheat, causing damage to the cylinder head, gaskets and, in the most serious cases, melting of the engine block. Such a failure involves very high repair costs.

Can I fit a compatible impeller instead of the original one?

Yes, provided that the compatible impeller meets the same dimensions and technical specifications as the original. Opt for reliable brands such as Cef Marine and Osculati, which guarantee the quality of the materials and the precision of the measurements.

How can I extend the life of the impeller?

Avoid starting the engine dry, making sure that the seacock is open and that the water circulates correctly. Periodically check the condition of the impeller and replace it as soon as you notice signs of wear or damage.