Outerwear Pre-Filter, 6 Round, 3.5 Tall, Black

OVERVIEW

Protecting your air-cooled VW engine from the harsh elements is non-negotiable, especially when you''re tearing up the dunes or cruising dusty backroads. The Outerwears Pre-Filter is a professional-grade solution designed to serve as the first line of defense for your high-performance air filter. Engineered with a proprietary polyester mesh that features uniform micron openings, this pre-filter effectively traps dust, dirt, and debris as small as .005 inches before they ever reach your primary filter element. This specialized mesh is treated with a hydrophobic water-repellent process, ensuring that moisture beads off rather than soaking through, which is critical for preventing engine hydro-lock and maintaining consistent airflow during damp conditions or accidental splashes in the woods.

Beyond its impressive filtration capabilities, the Outerwears Pre-Filter is built for the long haul with UV-resistant materials that won''t break down under the scorching sun often encountered in desert racing or summer car shows. By capturing the bulk of airborne contaminants, it significantly extends the service intervals of your main air filter, reducing the frequency of messy cleanings and the cost of replacement filters. Whether you are running a Weber progressive carburetor on a daily driver Beetle or a high-flow setup on a custom sand rail, this 6-inch round, 3.5-inch tall black pre-filter provides a sleek, functional upgrade that keeps your intake system breathing clean and your engine running at peak efficiency for years to come.

FITMENT

• VW Beetle: All years equipped with 6-inch round air cleaners.
• VW Karmann Ghia: All years using performance aftermarket carburetors.
• VW Bus / Type 2: 1950-1979 models with upgraded intake systems.
• VW Type 3: Squareback, Fastback, and Notchback models.
• Dune Buggies & Sand Rails: Ideal for all open-engine configurations.
• Weber Carburetors: Fits most 32/36 DGV, DFEV, and Progressive carb kits using 6x3.5 filters.
• Universal Applications: Fits any round air filter with a 6-inch diameter and 3.5-inch height.

SPECS

• Product Type: Air Filter Pre-Filter (Wrap)
• Shape: Round
• Diameter: 6.00 Inches
• Height: 3.50 Inches
• Color: Black
• Material: Proprietary UV-Resistant Polyester Mesh
• Filtration Rating: Stops particles down to .005 inches
• Special Feature: Hydrophobic (Water Repellent) Treatment
• Maintenance: Washable and Reusable
• Manufacturer Part Number: 1875-35TBK

PRO TIPS

1. Proper Cleaning Is Key

When it comes time to clean your Outerwears Pre-Filter, avoid using harsh degreasers or high-pressure air. Instead, use a mild dish soap and lukewarm water. Gently agitate the mesh by hand to release trapped dust and silt. Rinse thoroughly from the inside out and allow the pre-filter to air dry completely before re-installation. Using a hairdryer or compressed air can distort the uniform micron openings, which compromises the filtration integrity and the hydrophobic properties of the polyester mesh.

2. Test the Hydrophobic Coating

The water-repellent nature of the Outerwears pre-filter is its greatest asset for off-roaders. Periodically test the coating by lightly misting the surface with water. If the water beads up and rolls off, the coating is functioning correctly. If the water begins to soak into the mesh, it is a sign that the hydrophobic treatment has worn down or that the filter is clogged with fine oils. Keeping the pre-filter free of oil-based cleaning products from your primary filter is essential to maintaining this water-shedding capability.

3. Seamless Installation over K&N Style Filters

When installing this pre-filter over a pleated cotton gauze filter (like a K&N), ensure the primary filter is not over-oiled. Excess oil can transfer to the Outerwears mesh, attracting more dust and negating the "easy-clean" benefits of the pre-filter. Ensure the elastic band of the pre-filter is seated firmly below the bottom plate of