Fuelab 85801-2 Series In-Line Fuel Filter Long Micron with Check Valve - 858 10

The Fuelab 85801-2 is a long-length, 858 Series in-line fuel filter featuring a 10-micron replaceable fabric element and an integrated check valve — combining two critical fuel system components into a single, compact unit.

The built-in check valve allows your fuel system to maintain fuel pressure after engine and pump shutdown, preventing fuel bleed-back and supporting faster restarts. Because the check valve is housed within the filter body, it is protected from contamination and damage — eliminating the need for external check valve components, extra adapters, or additional fittings.

Key Features:

• Long-length 858 Series in-line fuel filter
• 10-micron replaceable fabric filter element (5-inch element size)
• Integrated check valve maintains system fuel pressure after shutdown
• Compatible with gasoline, diesel, ethanol (E85), and methanol fuels
• All-in-one design eliminates the need for a separate check valve and adapter fittings
• Replaceable element design for long-term serviceability

The Fuelab 858 Series is engineered for high-performance and racing fuel systems where fuel compatibility, pressure retention, and filtration efficiency are critical. The replaceable element design keeps long-term maintenance costs low while ensuring consistent filtration performance.