Help protect a compatible aFe performance air filter with the aFe POWER Filter GUARD black pre-filter. Also known as the aFe Magnum Shield, this reusable dry-weave cover removes larger particles from the incoming air before they reach the primary filter media, helping extend the time between filter cleanings.
The dry-weave fabric is designed not to attract dirt or restrict normal airflow. When servicing is required, the pre-filter can be removed and cleaned using soap and water.
Features
- Helps prevent larger airborne particles from reaching the primary air filter
- Can extend the interval between air-filter cleanings
- Dry-weave fabric does not require oil
- Designed to maintain normal intake airflow
- Washable and reusable construction
- Cleans with soap and water
- Black finish
- Fits multiple compatible aFe POWER conical air filters
Specifications
- Brand: aFe POWER
- Part number: 28-10113
- Product name: Filter GUARD Pre-Filter
- Alternate name: Magnum Shield Pre-Filter
- Color: Black
- Material: Dry-weave fabric
- Service method: Wash with soap and water
- Oil required: No
Fitment
This pre-filter fits select aFe POWER performance air filters. Confirm the complete air-filter part number before ordering rather than selecting the cover by appearance alone.
Confirmed compatible filter families include select aFe filters with the following part-number suffixes:
- 60507
- 90015
- 90023
- 90114
- 91007
- 91037
- 91057
- 91063
- 91071
- 91088
- 91108
- 91113
- 91139
Related intake fitment: Fits aFe Pro DRY S filter 21-91139 used with Magnum FORCE intake system 54-13014D for the 1996–1998 Toyota 4Runner 3.4L V6.
Fitment note: Compatibility varies by the complete filter part number, including its two-digit media prefix. Confirm the filter number against aFe’s current fitment table before ordering.
Recommended Use
Recommended for vehicles driven in dusty, sandy or debris-prone conditions, as well as owners who want to reduce how frequently the primary performance air filter must be cleaned.
What’s Included
- One black aFe POWER Filter GUARD pre-filter
Air filter not included: This product is a fabric pre-filter cover and does not include the primary performance air filter or intake system.
Installation
Remove or access the primary air filter as necessary, slide the Filter GUARD over the compatible filter and position it evenly over the exposed filter media. Confirm that the cover is secure and does not interfere with surrounding components.
For cleaning, remove the pre-filter and wash it with mild soap and water. Allow it to dry completely before reinstalling. Do not apply filter oil.
Emissions Information
This product does not require a CARB Executive Order number.
Proposition 65 Warnings.
Cancer and Reproductive Harm. See details below.
Items that are not CARB Legal will not be sold and ship to California or CARB states.
Payment & Security
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