Wehrli Universal Outerwear Air Filter Cover (Use w/WCF Air Filters)

SKU: WCFWCF100728

Air Filter Cover Assembly

WCF Air Filter...

Wehrli

Wehrli Universal Outerwear Air Filter Cover (Use w/WCF Air Filters)

SKU: WCFWCF100728

Air Filter Cover Assembly

WCF Air Filter...

IN STOCK! Est Ship 3-5 days. In stock at 1 location (more than 10 available)

We accept

Description

Wehrli Universal Outerwear Air Filter Cover (Use w/WCF Air Filters)

We use and recommend these Outerwears Air Filter Covers for all WCFab air filters used in our turbo kits and intake kits. These Pre-filters are designed to deflect the damaging debris, which can prematurely clog air filters, compromising peak air-flow and horsepower. The Pre-filter also extends the time between servicing intervals for your primary air filter media reducing costs and increasing convenience. - - These Pre-filters contain uniform micron openings and are run dry meaning no additional oils or additives are required. Running a dry Pre-filter means there is no dirt sticking to the oil creating premature loss of airflow and horsepower. Only those particles of dirt smaller than .005" get into the actual air filter, the larger particles simply fall off the pre-filter. In addition, these filter covers are constructed with a woven mesh that is specially treated at the mill using a proprietary process to repel water. This hydrophobic water repellent process is not sprayed on

Additional Information

Wehrli Custom Fab Cover, Air Filter, Outerwear, For use with WCFab Kits

Part Type

Air Filter Cover Assembly

Data: v4.2 - Upd: 2026-11-09 05:29:17

Features

Air Filter Cover
Compatible with WCF100717 4" Air Filter and WCF100719 5" Air Filters
Enhances the efficiency of performance / exposed air filters
Filters debris down to .005"
Hydrophobic water-repellent treatment
Puncture resistant
Resistant to heat up to 450 degrees F
UV resistant

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 10:28:19

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s	Wehrli, Wehrli Custom Fabrication
StreetFX SKU	wcfWCF100728
SFX Item ID	4255151
Accounting SKU	wcf-WCF100728
Manufacturer SKU	WCF100728
Manufacturer UPC	WCF100728
Alternative References	WCF100728

Manufacturer Attributes
Color	Black
Manufacturer Designation	Cover, Air Filter, Outerwear, For use with WCFab Kits
Product Class	Air Filter Cover Assembly
Construction/Type	Wehrli Custom Fab Cover, Air Filter, Outerwear, For use with WCFab Kits
Product Outline	Air Filter Cover Compatible with WCF100717 4" Air Filter and WCF100719 5" Air Filters Enhances the efficiency of performance / exposed air filters Hydrophobic water-repellent treatment UV resistant Filters debris down to .005" Resistant to heat up to 450 degrees F Puncture resistant
Vehicle Brief	Cover Air Filter Outerwear WCFab
Market Description	We use and recommend these Outerwears Air Filter Covers for all WCFab air filters used in our turbo kits and intake kits. These Pre-filters are designed to deflect the damaging debris, which can prematurely clog air filters, compromising peak air-flow and horsepower. The Pre-filter also extends the time between servicing intervals for your primary air filter media reducing costs and increasing convenience. - - These Pre-filters contain uniform micron openings and are run dry meaning no additional oils or additives are required. Running a dry Pre-filter means there is no dirt sticking to the oil creating premature loss of airflow and horsepower. Only those particles of dirt smaller than .005" get into the actual air filter, the larger particles simply fall off the pre-filter. In addition, these filter covers are constructed with a woven mesh that is specially treated at the mill using a proprietary process to repel water. This hydrophobic water repellent process is not sprayed on consequently, there is no airflow loss. Whether you use your vehicle for everyday driving or for hard core off-road racing, Pre-filters will work for you to protect and extend the life of your performance air filter and engine. Water Resistant: Filter cover Hydrophobic treatment helps repel moisture and protect against water entering the engine due to puddle splash or heavy rainstorms. Although our Pre-Filters are proven to be extremely effective in repelling water, please keep in mind they are NOT WATER PROOF. If submerged, your intake can hold or pass water. This treatment will last for six months to one year, depending on use and conditions. As a general guideline we recommend replacing your Outerwears air filter cover with every other air filter service to help maintain its intended performance benefits. A quick test can help determine if it is time to change your Pre-Filter. Simply take an ordinary clean spray bottle filled with water and gently spray the Pre-Filter. If water beads off the Pre-Filter, your water repellency is still working. If you see water enter through the Pre-Filter, it is time to purchase a new cover. - - Maintenance & Cleaning - Depending on driving conditions, service intervals may vary. We recommend making a visual inspection as often as you would normally service your vehicle. If your vehicle sees a lot of dirt track competition (pulling/dirt drags) or dirt road driving, we recommend viewing the Pre-Filter at least after every race or trip. If you see a significant amount of dirt, you should clean the Pre-Filter. If the only driving you experience is street, we recommend checking the Pre-Filter every 3,000-5,000 miles. Although your Pre-filter may not require a thorough cleaning, you may want to shake off excess dirt to maintain your optimum horsepower and fuel efficiency, then reinstall. Caked debris can be loosened by soaking this filter cover, after being removed from your main filter and vehicle, in a mild soapy water solution and then rinsed clean and allowed to dry before re-installation. Do not scrub or use aggressive cleaning chemicals as the pre-filter and hydrophobic treatment can become damaged resulting in reduced efficiency and premature failure.