aFe 31-10325-1 Magnum FLOW Pro DRY S w/ Foam Pre-Filter 2020-2026 GM Duramax For Sale - New and Used

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- AUTHENTICPART

Part Brand: aFe

Part Number: 31-10325-1

Vehicle Fitment

• 2020–2026 Chevrolet Silverado 2500HD (WT, Custom, LT, LTZ, High Country, 4WD/2WD, V8-6.6L Duramax L5P Diesel)
• 2020–2026 Chevrolet Silverado 3500HD (WT, Custom, LT, LTZ, High Country, 4WD/2WD, V8-6.6L Duramax L5P Diesel)
• 2020–2026 GMC Sierra 2500HD (SLE, SLT, AT4, Denali, 4WD/2WD, V8-6.6L Duramax L5P Diesel)
• 2020–2026 GMC Sierra 3500HD (SLE, SLT, AT4, Denali, 4WD/2WD, V8-6.6L Duramax L5P Diesel)

Fitment Notes

• Fits 6.6L Duramax L5P diesel engine only — does not fit 6.6L L8T gasoline engine
• Direct OE airbox replacement — no modifications required
• Foam pre-filter is cleanable with aFe POWER Cleaner or by tapping out debris between full cleaning cycles

Features

• Pro DRY S oil-free synthetic media with three progressive layers — strong filtration and airflow with zero re-oiling required
• Includes washable 1/2\" open-cell polyurethane foam pre-filter that captures large particles before they reach the main filter media
• ABS plastic retainer secures the foam pre-filter for easy removal, cleaning, and reinstallation
• Rounded deep open pleats expand usable filter surface area for improved dust holding capacity and flow
• Progressive bump seal self-conforms to the factory airbox housing — no gaskets or sealants needed
• Full 360-degree polyurethane frame maintains shape through repeated engine heat cycles
• Washable and reusable — cleaned with aFe POWER Cleaner only, no re-oiling required
• Limited lifetime warranty from aFe POWER

Specifications

• Filter Media: Pro DRY S — 3-layer oil-free synthetic
• Pre-Filter: 1/2\" open-cell polyurethane foam with ABS plastic retainer
• Frame Material: Full 360-degree polyurethane
• Seal Type: Progressive bump seal (gasket-free)
• Filter Style: Flat panel OE replacement with foam pre-filter
• Position: Engine intake (factory airbox)
• Cross-Reference: 31-10325 (base version without pre-filter)

Included Components

• 1x aFe Magnum FLOW Pro DRY S OE Replacement Air Filter (31-10325-1)
• 1x Washable foam pre-filter with ABS plastic retainer

Product Description

The aFe POWER Magnum FLOW 31-10325-1 is a direct OE replacement air filter for the 2020–2026 Chevrolet Silverado and GMC Sierra 2500HD/3500HD equipped with the 6.6L Duramax L5P diesel engine. What sets this SKU apart from the standard 31-10325 is the included washable foam pre-filter, which adds an extra layer of protection by capturing large airborne particles before they reach the main filter media — a notable advantage for trucks used in dusty, off-road, or heavy-duty work environments.

The Pro DRY S media delivers strong airflow over the stock paper filter without requiring any re-oiling — simply clean with aFe POWER Cleaner, let air dry, and reinstall. The foam pre-filter can be tapped out between full cleaning cycles for extended service intervals. The progressive bump seal and full 360-degree polyurethane frame ensure a leak-free, long-lasting fit in the factory airbox, making this an ideal drop-in upgrade for Duramax owners who want better engine protection and lower long-term maintenance costs.

*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.

· · · SHIPPING · · ·

• Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
• Canada customers - If does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.

· · · RETURNS · · ·

• Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.

• Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
• Any returns received installed, mounted, used or missing components will be subject to return fee\'s.

· · · PAYMENTS · · ·

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· · · response · · ·

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