K&N 59-5005 Marine Flame Arrestor Oval Air Filter (Oval-Tapered)

Application / Intended Use

• Marine engines and other applications requiring a flame-arresting oval air filter - universal fit (verify inlet/flange size before install)

Features

• Oval-tapered flame-arrestor air filter design - compact and efficient airflow path
• Reusable cotton-gauze filtration media - washable and re-usable for repeated use
• Stainless-steel top cap and base for corrosion resistance and durability in marine/saline environments
• Large inlet flange (3.75" ID) suitable for typical marine carburetor or throttle-body applications
• Marine-rated and flame-arrestor compliant - suitable for marine engine air intake safety requirements
• Pre-oiled and ready to install - no pre-treatment required for first installation
• Improved airflow compared to restrictive paper filters - enhances engine breathing, throttle response, and potential power output
• Washable and reusable - reduces recurring filter replacement cost and waste

Specifications

• Shape: Oval-tapered flame arrestor filter
• Base outside length: 9.5 in (approx. 241 mm)
• Base outside width: 4.625 in (approx. 117 mm)
• Height: 4 in (approx. 102 mm)
• Inlet flange inner diameter: 3.75 in (approx. 95 mm)
• Flange length (lip): 0.75 in (approx. 19 mm)
• Top outside length: approx. 8.5 in; top outside width: approx. 3.75 in
• Media: Oiled cotton-gauze filter media (washable / reusable)
• Finish: Red filter media with stainless-steel top cap and base
• Weight (approx.): 1.6 lb (approx. 0.7 kg)
• Packaged quantity: 1x air filter (sold individually)

Included Components

• 1x Oval-tapered flame-arrestor air filter (as specified above)

Product Description

The K&N 59-5005 Marine Flame Arrestor is a premium reusable air filter designed specifically for marine engines or other high-airflow intake systems requiring a flame-arrestor specification. Its oval-tapered shape and generous internal cross-section maximize airflow while still delivering excellent filtration thanks to K&N's signature oiled cotton-gauze media. The stainless-steel top cap and base resist corrosion and offer durability in harsh environments - ideal for boats, marine engines, or salt-water use.

With a 3.75-inch inlet flange and compact 9.5" x 4.625" base footprint, this filter fits many carbureted or throttle-body intake systems - but because it's a universal-style part, you must verify inlet flange diameter and mounting fitment before ordering. Once installed, the filter is washable and reusable: simply clean and re-oil per maintenance instructions, and it can serve for the life of the engine. This makes it a cost-effective, long-lasting upgrade over typical disposable paper filters, especially for marine or heavy-duty applications.

WARNING: Fitment Note: This is a universal flame-arrestor filter. Confirm that your intake system accepts a 3.75" flange, and that there is adequate clearance around the filter base and top cap. Use proper clamps or mounting hardware for a secure, air-tight seal. For marine use: ensure all components remain corrosion-free and that the filter is regularly cleaned/re-oiled to maintain performance and reliability.