-20%
Click to zoom in
Pre-filter protection for the specified air filter
aFe 28-10423 is a black pre-filter wrap that intercepts larger debris before it reaches the main air filter. Match the exact filter and its base, top and height dimensions.
Key Features
- Dry-weave polyester fabric.
- Helps keep larger particles such as bugs and twigs away from the primary air filter.
- Washable with soap and water; inspect according to operating conditions.
- The manufacturer describes water- and dirt-repellent fabric, convenient pull tabs and a silk-screened aFe logo.
Fitment
Use only with the exact filters in the manufacturer compatibility table below. This includes specified Quantum and other intake replacement filters; it is not a fit-all cover for every aFe air filter. The page header uses older shorthand that differs from some detailed table entries. Confirm the actual filter marking and envelope.
| Air Filter Part Number | Air Filter Base Dimensions | Air Filter Top Dimensions | Air Filter Height (Does Not Include Flange) | Used on aFe POWER Cold Air Intake Systems Part Number |
|---|---|---|---|---|
| 21-90098 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 9 IN | 53-10001D 53-10002D 53-10003D 53-10005D 53-10006D 53-10007D 53-10015D 53-10016D 53-10020D 53-10021D 53-10026D 53-10029D 53-10030D 53-10032D |
| 21-90103 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 8 IN | 53-10004D 53-10009D 53-10013D 53-10023D |
| 21-90105 | (8.5x7.25) IN Diameter | (5.75x4.5) IN Diameter | 9 IN | 53-10017D 53-10019D 53-10033D 53-10034D |
| 21-90110 | (9x7) IN Diameter | (5.75x3.75) IN Diameter | 10 IN | 54-13076D |
| 24-90110 | (9x7) IN Diameter | (5.75x3.75) IN Diameter | 10 IN | 54-13076R |
| 21-90110-CF | (9x7) IN Diameter | (5.75x3.75) IN Diameter | 10 IN | 57-10001D 57-10027D |
| 24-90110-CF | (9x7) IN Diameter | (5.75x3.75) IN Diameter | 10 IN | 57-10001R 57-10027R |
| 24-90204R | (9.25x7.25) IN Diameter | (6x4) IN Diameter | 9 IN | 54-13080R |
| 24-90204D | (9.25x7.25) IN Diameter | (6x4) IN Diameter | 9 IN | 54-13080D |
| 24-90204G | (9.25x7.25) IN Diameter | (6x4) IN Diameter | 9 IN | N/A |
| 27-90204D | (9.25x7.25) IN Diameter | (6x4) IN Diameter | 9 IN | 57-10030D |
| 27-90204K | (9.25x7.25) IN Diameter | (6x4) IN Diameter | 9 IN | 57-10030K 57-10030KR |
| 21-91101 | (8.25x6.25) IN Diameter | (7.25x5) IN Diameter | 8.5 IN | 50-72205D 51-72204-R 51-76206-1 52-72204 52-72204-CF 58-10001D |
| 24-91101 | (8.25x6.25) IN Diameter | (7.25x5) IN Diameter | 8.5 IN | 50-72205R 52-72204 52-72204-CF 54-76206-1 58-10001R |
| 21-91129 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 9 IN | N/A |
| 23-91129 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 9 IN | 53-10001R 53-10002R 53-10003R 53-10005R 53-10006R 53-10007R 53-10015R 53-10016R 53-10020R 53-10021R 53-10026R 53-10029R 53-10030R 53-10032R |
| 72-91129 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 9 IN | N/A |
| 21-91132 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 8 IN | N/A |
| 23-91132 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 8 IN | 53-10004R 53-10009R 53-10013R 53-10023R |
| 72-91132 | (10x8.75) IN Diameter | (6.75x5.5) IN Diameter | 8 IN | N/A |
| 21-91133 | (8.5x7.25) IN Diameter | (5.75x4.5) IN Diameter | 9 IN | N/A |
| 23-91133 | (8.5x7.25) IN Diameter | (5.75x4.5) IN Diameter | 9 IN | 53-10017R 53-10019R |
| 72-91133 | (8.5x7.25) IN Diameter | (5.75x4.5) IN Diameter | 9 IN | N/A |
Heights in this table exclude the filter flange. N/A means the manufacturer table supplies no intake-system part number for that row; it does not establish universal vehicle fitment. Intake numbers shown are manufacturer-listed associations, not a new vehicle application table.
Specifications
| Brand | aFe POWER |
|---|---|
| Manufacturer Part Number | 28-10423 |
| Product | Filter GUARD / Magnum SHIELD pre-filter wrap |
| Color | Black |
| Construction | Dry-weave polyester fabric |
| Compatibility | Exact filter part numbers and dimensions in the manufacturer table |
| Maintenance | Soap and water; service the underlying filter separately for its actual media |
| Emissions statement | Manufacturer states this component does not require a CARB EO number; complete intake compliance remains separate |
| UPC | 802959281130 |
| WARNING | This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov. |
What's Included
One pre-filter wrap. The underlying air filter, complete intake, clamps and couplers are not identified in an itemized package list for this wrap. The generic manufacturer fields say Filter Included and Coupler Included, but the detailed description identifies the pre-filter only; those fields do not independently confirm separate supplied components.
About aFe Power
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
Related Parts
Frequently Asked Questions
Which filters does this wrap fit?Use only with the exact filters in the manufacturer compatibility table below. This includes specified Quantum and other intake replacement filters; it is not a fit-all cover for every aFe air filter. The page header uses older shorthand that differs from some detailed table entries. Confirm the actual filter marking and envelope.
Does it replace the primary air filter?No. It is an outer pre-filter for the specified air filter. It does not replace the main filter element or certify the fitment of a complete intake.
What measurements should I compare?Use the exact filter part number, base dimensions, top dimensions and height shown in the table. The manufacturer table excludes flange height; similar-looking filters are not automatically interchangeable.
Does the package include the main filter or intake?The detailed listing identifies the pre-filter wrap. A separately supplied main filter, intake assembly, clamp or coupling is not confirmed by an itemized package list.
How do I clean the wrap?The manufacturer specifies soap and water for the dry-weave wrap. Clean it as needed, allow it to dry, and service the underlying air filter separately according to its actual media instructions. No filter oil is listed for the wrap.
How often should I inspect it?Inspect the wrap for debris accumulation, damage and secure fit based on dust exposure and operating conditions. It can help extend the main filter cleaning interval, but no guaranteed mileage interval is established.
Is the wrap a waterproof intake barrier?No waterproof or submersion protection is established by this listing. The manufacturer describes water-repellent fabric, which does not certify the complete intake against water ingestion.
Does it guarantee extra horsepower or unrestricted airflow?No vehicle-specific power gain or numeric airflow improvement is established for this wrap. Its function is to intercept larger debris while covering the specified primary filter.
Installation Instructions
Confirm aFe 28-10423 and the exact primary filter against the manufacturer table. Fit the wrap over the intended filter without damaging or distorting the filter or its seal. Use the stated pull tabs to help position it. Check that it remains secure and clear of surrounding moving or hot components. No numeric installation torque is provided for this wrap.
Important Disclosures
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
aFe
Shop aFe POWER intake systems, replacement filters, exhaust components, BladeRunner cooling parts and CONTROL chassis accessories at Black Ops Auto Works. Compare Momentum GT, Track Series and Magnum FORCE intake applications alongside Pro DRY S and Pro 5R filter choices. Choose a complete upgrade or a service component for the system already on your car, truck or SUV.Choose Your aFe Intake and FilterMomentum GT, Track Series and Magnum FORCECompare the intake housing, tubing, filter arrangement and finish offered for your engine. The collection includes Momentum GT applications, selected carbon-fiber Track Series systems and Magnum FORCE configurations. Each package supplies its own combination of induction components, so choose the design for the installation you want.Pro DRY S or Pro 5R Filter MediaPro DRY S uses oil-free media and skips the re-oiling step during service. Pro 5R is an oiled filter option with a different maintenance procedure. Choose a media configuration aFe off...
View aFe Products
Air Filters
Performance Air Filters and Replacement Filters Shop performance engine filters, factory-airbox replacements, universal intake filters and cabin filters at Black Ops Auto Works. Choose a drop-in element for routine service, a measured clamp-on filter for a custom intake, or a replacement for the aftermarket system already installed. Compare filter media and care requirements alongside the application so the next service is part of the buying decision. Choose the Correct Air Filter Type Direct-fit and drop-in filters: shaped for a specific factory air box or listed intake system. Universal clamp-on filters: selected by flange inside diameter, base and top dimensions, height and available clearance. Cabin and HVAC filters: vehicle-specific filters for air entering the passenger compartment. Breather filters: compact filters for compatible valve-cover, crankcase-vent and catch-can applications. Pre-filters and wraps: outer covers designed for compatible primary filters in dust...
View Air Filters Products
Pre-Filters
Shop air-filter wraps, outer pre-cleaners and selected pre-filter components at Black Ops Auto Works. Compare K&N, AEM, Airaid, aFe, Injen, JLT, Banks and Volant references for the actual filter and intake arrangement. Choose the supported wrap or pre-cleaner by filter number and shape, then compare its intended protection and care.DryCharger, PreCharger and Foam DesignsK&N DryCharger and PreCharger wraps have different material/treatment specifications, with separate Airforce foam pre-cleaner references also listed. Do not treat every PreCharger as foam or apply one care method across all three families.A wrap adds an outer layer ahead of the main filter. Water-repellent designs can help with splash exposure in their supported use, but do not make an exposed intake waterproof or safe to submerge.Match the Actual FilterRound-straight, tapered, oval and other filter profiles need the corresponding wrap. Compare base/top dimensions, height and the manufacturer’s named filter r...
View Pre-Filters Products