Fuelab 84812-3 848 Series Inline Fuel Filter 40 Micron Stainless with Check Valve

The Fuelab 84812-3 is a standard-length, billet aluminum inline fuel filter from the 848 Series, featuring a 40-micron stainless steel element and an integrated check valve — all in a single, compact assembly. By combining the filter and check valve into one unit, the check valve is shielded by the filter media itself, eliminating the need for separate components, additional adapters, or extra fittings in your fuel system.

The integrated check valve helps your fuel system maintain pressure after engine and pump shutdown, and also works to prevent fuel vapors from building up in your fuel rails during the engine cooling cycle — improving hot-start reliability and overall fuel system consistency.

Key Features:

• 40-micron stainless steel filter element — designed for harsh racing conditions and broad fuel compatibility; cleanable and reusable, reducing long-term maintenance costs
• Integrated check valve — maintains fuel pressure post-shutdown and minimizes vapor lock in fuel rails
• Compatible with gasoline, diesel, methanol, and ethanol fuels
• Billet aluminum housing with military-spec anodized finish (MIL-A-8625, Type II) for corrosion resistance and durability
• Machined internal radii for minimal pressure drop through the filter
• -8AN male inlet and outlet end caps for direct connection to AN-plumbed fuel systems
• Supports up to 200 GPH flow capacity
• 200 PSIG maximum pressure rating
• 3-inch element size, standard length
• Includes a low-profile saddle clamp mounting bracket
• Backed by a 2-year limited warranty

The Fuelab 848 Series is an ideal choice for performance and racing fuel systems that demand reliable filtration, broad fuel compatibility, and simplified plumbing without sacrificing flow or pressure integrity.