The K&N 81-0300 Clear-View In-Line Fuel Filter offers a reliable universal solution for low-pressure fuel systems (non fuel-injected applications) compatible with both 5/16″ and 3/8″ fuel lines. Its transparent glass body provides a clear visual of contaminant collection in real time, while the internal mesh element is replaceable—helping reduce maintenance costs over time. This filter installs easily without special tools and is ideal for applications where straightforward fuel line filtration and monitoring are needed.
Whether you’re refreshing fuel system components on a classic vehicle, race car, or custom build, the 81-0300 gives you a visible safeguard against rust, dirt and debris entering fuel delivery. With its universal fitment and K&N’s backing, this filter offers both simplicity and reliability.
Features:
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Universal in-line fuel filter suitable for 5/16″ and 3/8″ (≈8 mm & 10 mm) fuel lines.
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Clear glass housing enables visual inspection of debris capture for proactive maintenance.
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Replaceable inner mesh element—reduces replacement cost over time.
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Designed for non-fuel injected (carbureted, low-pressure) applications.
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Compact size: approximately 3.375″ length, 1.125″ outside diameter.
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Straight-forward installation—no special tools required.
