Protect your engine with 25W40 FC-W Synthetic Blend 4-Stroke Engine Oil, a high-performance marine lubricant engineered specifically for sterndrive and inboard petrol engines. Formulated with a premium blend of synthetic and mineral base stocks, this oil delivers superior wear protection, outstanding thermal stability, and reliable performance under high RPM, heavy load, and harsh marine conditions.
This product is a compatible replacement for:
This 25W40 FC-W Synthetic Blend marine engine oil is the ideal choice for boat owners looking for premium lubrication, maximum engine protection, and dependable performance in all marine conditions. Perfect for regular servicing of Mercruiser, Volvo Penta, and other 4-stroke marine engines.
Please Note: This product is shipped via road freight only, or is available for pickup from our Sydney (Northern Beaches) fulfilment centre.
What is Sierra 18-9440-3?
Sierra 18-9440-3 is a oil.
Which part numbers cross-reference Sierra 18-9440-3?
This listing cross-references Mercury 8M0078630, Mallory 9-82391 and Mercury 92-883723K01. See the Cross References & Alternative Products section above for linked alternatives where available.
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