14in. x 4in. Pre-Filter W/Top Yellow

The 14in. x 4in. Pre-Filter W/Top Yellow from Outerwears is a dedicated air intake protection system designed for high-performance engines in tactical, military, and off-road applications. This pre-filter wraps around your primary air filter element to extend service life and reduce maintenance intervals in dusty, sandy, or contaminated environments. Law enforcement and military personnel rely on pre-filters to maintain engine reliability during extended field operations where filter changes may not be immediately feasible.

Constructed from durable polyester material, this pre-filter features a 14-inch diameter and 4-inch height, engineered to capture larger particulate matter before it reaches the primary filter element. The yellow top-mounted design allows for quick visual inspection and easy removal without breaking down the main filtration assembly. Polyester construction provides excellent airflow while maintaining robust dirt-trapping capability—critical for maintaining engine performance in austere conditions where air quality is compromised by dust, pollen, or industrial particulates.

Operators of diesel trucks, tactical vehicles, and portable power equipment benefit most from this pre-filter system, particularly in desert or high-dust operational theaters. The cylindrical design with top-mounted yellow cap fits standard 14-inch round filter housings found on many heavy-duty engines. Installation is straightforward—simply slide the pre-filter over your existing air filter element, and replace it when visibly saturated. Weighing only 0.08 lbs, this pre-filter adds negligible weight while delivering measurable gains in filter longevity and engine protection during demanding tactical or field deployments.