Outerwear Pre-Filter, 4.5 X 7 Oval, 3.5 Tall, Black

OVERVIEW

When you are pushing your air-cooled Volkswagen through the punishing environments of the Mojave or simply navigating the dusty backroads of the Midwest, your engine''s greatest enemy is airborne debris. This Outerwears Pre-Filter is the ultimate line of defense for your high-performance air cleaner. Specifically engineered to fit 4.5-inch by 7-inch oval filters, this black pre-filter is crafted from a proprietary polyester mesh with uniform micron openings. Unlike standard foam or paper elements that can quickly become choked with silt, the Outerwears mesh is designed to deflect large particles and moisture before they ever reach your primary filter. This not only keeps your intake air cleaner but significantly extends the service intervals of your expensive performance air filters, saving you both time in the garage and money on replacement parts.

The beauty of the Outerwears design lies in its hydrophobic water-repellent treatment. For those running open engine bays in dune buggies, sand rails, or Baja Bugs, a sudden rainstorm or a splash through a creek can lead to catastrophic water ingestion. This pre-filter acts as a barrier, shedding water while maintaining critical airflow to your Weber, Dellorto, or Empi carburetors. The UV-resistant material ensures that the deep black finish won''t fade or degrade under the intense heat of an air-cooled engine compartment or the scorching sun. By filtering debris down to .005 inches without creating a significant vacuum restriction, you get the peace of mind that your piston rings and cylinder walls are protected from the abrasive "lapping compound" effect of fine dust and sand.

FITMENT

This pre-filter is designed for performance oval air cleaners common in the air-cooled VW industry. It is a direct fit for most Weber Progressive (DGV/DFEV) air cleaners and many dual-carburetor setups. Fits the following models when equipped with a 4.5" x 7" x 3.5" oval air cleaner:

• Volkswagen Beetle: 1950 through 1979 (Standard and Super Beetle)
• Volkswagen Karmann Ghia: 1956 through 1974
• Volkswagen Bus / Type 2: 1950 through 1979
• Volkswagen Type 3 (Fastback, Squareback, Notchback): 1961 through 1973
• Volkswagen Thing / Type 181: 1973 through 1975
• Custom Applications: Ideal for Dune Buggies, Sand Rails, Baja Bugs, and Manx-style kit cars using Weber Progressive or IDF/HPMX oval filters.

SPECS

• Brand: Outerwears
• Part Number: 195-35TBK
• Shape: Oval
• Base Dimensions: 4.5 Inches x 7 Inches
• Height: 3.5 Inches
• Color: Black
• Material: Proprietary UV-Resistant Polyester Mesh
• Filtration Rating: Deflects debris down to .005 inches
• Special Treatment: Hydrophobic (Water Repellent)
• Installation: Elastic base for a secure, snug fit over the filter element

PRO TIPS

Tip 1: Proper Cleaning Technique

To maintain the hydrophobic properties and the airflow efficiency of your Outerwears pre-filter, never use harsh degreasers or solvent-based cleaners. Instead, simply remove the pre-filter and wash it in a bucket of warm water mixed with a mild dish soap. Agitate it gently by hand to release the trapped silt and dust. Rinse it thoroughly from the inside out with low-pressure water and allow it to air dry completely before reinstallation. Using compressed air or high heat can damage the uniform micron openings in the mesh.

Tip 2: The "Dry" Advantage

One of the biggest mistakes VW owners make is treating an Outerwears pre-filter like a K&N element. You should NEVER apply filter oil to the Outerwears mesh. The pre-filter is designed to work as a "dry" barrier. Adding oil will attract dust, cause the mesh to clog instantly, and destroy the water-repellent coating. Let the pre-filter stay dry so it can deflect the heavy stuff, and let your oiled primary filter handle the microscopic particles.

Tip 3: Check Your Clearances

When installing this on a Weber Progressive carburetor in a tight Beetle engine bay, ensure the elastic hem of the pre-filter is tucked securely under the base plate of the air cleaner. If the pre-filter is loose, it can vibrate against the decklid or the firewall, causing premature wear on the mesh. A snug fit ensures that all air entering the carburetor is forced through the pre-filter first, preventing "leakage" of unfiltered air around the edges of the filter element.