aFe Momentum Intake Replacement Air Filter w/ Pro DRY S Media (Pair)

This aFe filtration component is the Momentum Intake Replacement Air Filter w/ Pro DRY S Media (Pair). Match the exact dimensions, media type, service method, mounting interface, flow requirement, and fluid or air-system application before ordering.

Key Features

• Filter media: oil-free dry media for superior flow and filtration balance.
• Drop-in direct fit for your factory airbox, no modification needed.
• Higher flow rate than OEM paper element.
• aFe Pro DRY S replacement air filter (21-91136-MA).
• Open the factory airbox cover by releasing the spring clips or removing the mounting bolts.

Fitment

Specifications

What’s Included

One new aFe air filters – universal fit in the exact configuration and quantity identified by this listing. Hardware, clamps, couplers, gaskets, sensors, wiring, fluids, calibration, and accessories are included only when expressly stated.

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.

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.

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• Shop the complete aFe Power collection

Frequently Asked Questions

How do I confirm the dimensions of the Momentum Intake Replacement Air Filter w/ Pro DRY S Media (Pair) (aFe 21-91136-MA)?
Match the flange or panel dimensions, shape, seal, height, and mounting interface; similar-looking filters are not necessarily interchangeable.

Is this filter washable and reusable?
That depends on its exact media. Follow the aFe cleaning or replacement instructions for the listed media and never oil a dry-media filter.

How often should the filter be serviced?
Inspect it based on driving conditions and restriction rather than mileage alone. Dust, water, off-road use, and construction traffic can shorten the interval.

Can I substitute a different aFe media type?
Only when aFe lists that media as a direct replacement for the same housing and dimensions. Confirm the exact replacement part number before ordering.

Installation Instructions

1. Confirm aFe part number 21-91136-MA, the complete vehicle or specification-based application, and all required supporting components.
2. Clean the housing and sealing surface so debris cannot enter the intake, cabin, engine, transmission, or fuel system.
3. Install the element in the specified flow direction and orientation without distorting its seal or contaminating clean surfaces.
4. Verify the housing closes evenly and record the correct inspection, cleaning, or replacement interval for the operating conditions.