aFe · New
aFe Black Series Replacement Filter w/ Pro Dry S Media 4-1/2x3IN F x 6x5IN B x 5x3-3/4 Tx7IN H
MPN 21-90111 · Store SKU afe21-90111
Supplier stock checked 11/7/2026, 10:42:21 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
This filter features three layers of oil-free synthetic media and requires no oil during maintenance to provide maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity, while its inverted top makes for more filter surface area, resulting in longer service intervals. This media is best suited for street and light off-road use. Pro DRY S filters are easily cleaned with aFe POWER CLEANER. aFe POWER performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. Its surrounded by expanded metal that provides additional protection, preventing filter collapse and direct impact. This aFe POWER performance air filter is constructed with a polyurethane base and top. Unlike other materials that degrade after repeated heat cycles in an engine bay, polyurethane maintains its original molded shape. Momentum Intake Replacement Air Filter w/ Pro DRY S Media (4-1/2x3) IN F x (6x5) IN B x (5x3-3/4) IN T x 7 IN H Momentum Intake Replacement Air Filter w/ Pro DRY S Media
Manufacturer fitment & guides
Check 21-90111 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
