14in. Air Cleaner Baseplate

The K&N Engineering 14in. Air Cleaner Baseplate (model 85-3549) is a premium foundation component for high-flow air intake systems on carbureted vehicles. Designed for serious enthusiasts and mechanics who understand that proper air filtration isn't just about engine protection—it's about maximizing airflow without sacrificing filtration efficiency. This dropped baseplate accommodates standard 5-1/8 inch carburetor flanges and serves as the structural anchor point for custom and performance intake builds.

Manufactured from durable steel with a professional chrome finish, this 14 inch round baseplate distributes filter element load evenly while resisting corrosion and heat degradation common in engine bays. The dropped base design increases filter element capacity, allowing for larger air volume circulation and extended service intervals—critical for both street and competition vehicles running lean carburetor jetting. K&N's engineering ensures the baseplate maintains structural rigidity under vibration and temperature cycling, with precision machining that guarantees proper seal interface between the filter element and carburetor intake tract, preventing unfiltered air bypass.

This baseplate is ideal for classic muscle cars, street rods, and vintage trucks still operating carbureted powerplants where OEM air cleaner assemblies limit performance potential. Installation pairs seamlessly with K&N high-flow filter elements and compatible carburetor adaptations. Weighing 2.52 lbs and measuring 15.4 x 15.45 inches across the mounting surface, it fits standard engine bay layouts without requiring extensive modification. Whether you're rebuilding a restomod intake system or upgrading an existing carb setup, this baseplate provides the precision foundation that separates amateur builds from professional-grade engine modifications.