Volvo Penta Coolant Pump | 24499735

Volvo Penta Coolant Pump — Part #24499735

Part Number: 24499735
Brand: Volvo Penta
Official Product Type: Coolant Pump
System: Freshwater / Closed-Loop Cooling
Weight: 4.85 kg (catalog spec)

This is a genuine Volvo Penta OEM coolant pump for the engine’s freshwater (closed-loop) cooling circuit. The coolant pump circulates engine coolant through the heat exchanger and engine block to maintain safe operating temperatures. When this pump fails, coolant flow stops and the engine will overheat — making it one of the most critical components in the cooling system.

24499735 sits in the same pump family as 23646312 and 22577750. These part numbers represent different production iterations of the same pump application and should not be treated as interchangeable without confirming the exact engine model and serial number.

Compatible Applications

Specific model fitment data for 24499735 is serial-number dependent. Always confirm by engine model and serial number before ordering. If your service history or parts manual references 23646312 or 22577750, verify whether 24499735 is the current superseding part for your specific engine serial break.

• Volvo Penta marine diesel engines — confirm by serial number
• Applications previously using 23646312 or 22577750 — verify serial break before ordering

Serial Number Requirement

Volvo Penta coolant pumps change across production runs and serial breaks. Always confirm fitment by engine model and serial number before ordering. If you have the removed pump in hand, matching by the part number stamped on the pump body is the most reliable method.

When to Replace

Replace this coolant pump when you observe any of the following:

• Coolant leaking from the pump body or shaft seal
• Unusual noise or vibration from the pump area
• Shaft play or bearing wear detected during inspection
• Engine overheating with no other identified cause
• Pump seized or impeller damaged during cooling system service

Installation Notes

• Match by part number, engine model, and serial number before installation
• Compare the replacement pump configuration against the removed unit before fitting
• Inspect mating hoses, clamps, and gaskets and replace as needed during installation
• Refill with the correct Volvo Penta coolant specification for your engine after installation

Related Part Numbers

• 24499735 — This part (current)
• 23646312 — Earlier pump in the same family
• 22577750 — Earlier superseded reference in the same pump family

Parts Desk Insights

This is a high-value pump and the most important thing to get right is the fitment confirmation. The pump family spanning 22577750, 23646312, and 24499735 covers multiple production runs, and the wrong pump will not fit correctly. The safest approach is to have the engine serial number and the removed pump part number in hand before ordering. If you’re unsure which pump applies to your engine, contact us before purchasing — a return on a coolant pump of this value is avoidable with a quick confirmation.

Technical FAQ

Q: Is 24499735 a direct replacement for 23646312?
A: They are in the same pump family, but whether 24499735 supersedes 23646312 on your specific engine depends on the serial number break. Confirm before ordering.

Q: What causes coolant pump failure on Volvo Penta engines?
A: The most common causes are shaft seal wear (leading to coolant leaks), bearing failure (noise and shaft play), and impeller damage from debris or cavitation. Regular cooling system inspections help catch these early.

Q: Do I need to replace the gasket when installing this pump?
A: Yes — always use a new gasket or seal when installing a replacement coolant pump. Reusing the old gasket risks a coolant leak after installation.

Q: What coolant should I use after replacing the pump?
A: Use the coolant type specified for your engine — either Volvo Penta VCS Yellow or VCS-2 Orange, depending on your engine generation. Do not use generic automotive coolant.