FUELAB 858 Series In-Line Fuel Filter -8AN 6 Micron 5in Check Valve - 85831-4

The FUELAB 858 Series In-Line Fuel Filter is designed to remove fuel-system contaminants before they reach sensitive pumps, regulators, or injectors. Part 85831-4 uses a -8AN 6 Micron 5in Check Valve configuration. Suitable for E85/methanol applications per FUELAB filter guidance.

Key Specifications

• Brand: FUELAB
• Series: 858 Series
• Part Number: 85831-4
• GTIN/UPC: 00845096006020
• Connections: -8AN Inlet/Outlet
• Filtration: 6 Micron
• Element Material: Micro-fiberglass
• Check Valve: Integrated
• Housing Pressure Rating: Up to 200 PSIG

Usage & Application Guide

• Use as fine post-pump filtration for high-pressure EFI, direct-injection, E85, or methanol systems.
• Integrated check valve helps retain line pressure after pump shutdown.
• Match inlet/outlet AN size, micron rating, fuel type, and expected system flow before ordering.