K&N 1.688in OD x 5.625in L 100 Micron In-Line Fuel/Oil Filter

K&N 1.688in OD x 5.625in L 100 Micron In-Line Fuel/Oil Filter | High-Flow Performance Filter

Protect your high-performance engine with the K&N 1.688" x 5.625" 100-micron in-line fuel/oil filter. Reusable stainless steel mesh & billet aluminum housing for maximum flow.

Engineered for demanding motorsports and custom performance applications, the K&N 1.688 in. OD x 5.625 in. L 100-Micron In-Line Fuel/Oil Filter delivers maximum fluid flow without sacrificing vital component protection. Designed to handle aggressive fuels and extreme operating pressures, this versatile compact filter functions seamlessly as a primary fuel pre-filter or high-volume inline oil filter.

Constructed from lightweight, CNC-machined billet aluminum, the housing features a durable anodized protective finish to resist corrosion and harsh engine bay environments. Inside, a high-grade 100-micron stainless steel wire mesh element traps coarse debris, rust, and particulate matter before it reaches your fuel pump, pressure regulator, or engine internals. Unlike standard disposable paper filters, the K&N stainless steel element is fully washable and reusable, offering a long service life and exceptional long-term value.

Whether you are running pump gasoline, race gas, E85, or methanol, this filter is built to maintain peak fluid volume under demanding high-psi conditions. Its compact 1.688-inch outer diameter and 5.625-inch body length make it an ideal choice for tight engine bays, chassis rails, and custom plumbing setups.

Best Uses

1. Pre-Pump Fuel Filter (Pre-Filter): Placed before electric fuel pumps in high-flow EFI or carbureted fuel systems to strain large contaminants and prevent pump cavitation or damage.
2. High-Performance Oil Systems: Used as an inline oil filter for turbocharger oil feed lines, dry sump oiling systems, or power steering circuits.
3. Alternative & Racing Fuel Systems: Ideal for vehicles running E85, Ethanol blends, Methanol, or race gas where standard filter elements degrade.
4. Motorsports & Custom Builds: Essential for drag racing, circuit racing, off-road builds, marine applications, and street performance vehicles requiring high fluid volume.

Features

1. 100-Micron Stainless Steel Mesh: Heavy-duty, corrosion-resistant woven stainless wire media provides high-volume flow while stopping harmful debris.
2. Precision Billet Aluminum Housing: CNC-machined body measuring 1.688" in diameter by 5.625" in length for maximum strength in a compact footprint.
3. Washable & Reusable Element: Easily disassembles for quick inspection, cleaning, and reuse, eliminating frequent filter replacements.
4. Broad Fuel & Fluid Compatibility: Chemically resistant seals allow seamless operation with pump gas, race fuel, E85, ethanol, methanol, and motor oil.
5. Anodized Protective Finish: Tough anodized coating safeguards the outer body against chemical exposure, heat, and ambient rust.

Benefits

1. Protects Critical Components: Prevents large particles and system debris from destroying fuel pumps, injectors, or oiling passages.
2. Minimal Pressure Drop: Delivers unrestricted, high-volume flow rates necessary for high-horsepower engines under heavy load.
3. Cost-Effective Long-Term Maintenance: Simply wash and re-install the mesh filter during routine maintenance rather than buying disposable replacements.
4. Compact Space Savings: The streamlined 1.688" x 5.625" dimensions allow clean installation in tight engine bays or along chassis frame rails.
5. Universal Versatility: Functions equally well in fuel or oil delivery applications across automotive, marine, and powersports builds.