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

The 14in. x 4in. Pre-Filter W/Top Yellow from Outerwears is an air intake protection system designed for high-performance engines used in tactical, military, and off-road applications. This pre-filter wraps around the primary air filter element to extend service life and reduce maintenance intervals in dusty, sandy, or contaminated environments.

Constructed from durable polyester material, this pre-filter is 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 disrupting the main filtration assembly. Polyester construction provides excellent airflow while maintaining robust dirt-trapping capability, which is critical for maintaining engine performance in environments compromised by dust and other 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 a 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.