The AEM Induction DryFlow Panel Air Filter (MPN 28-20457) is a drop-in panel replacement for the factory air box filter on applicable Jeep Grand Cherokee WK2 and Dodge Durango models. The manufacturer builds it from non-woven synthetic media using its oil-free DryFlow design, so it never needs filter oil. It is washable and reusable, and the manufacturer lists a limited lifetime warranty. That makes it a longer-term alternative to a disposable paper element. The manufacturer also says the filter is engineered to improve horsepower and throttle response, though no dyno figure is published, so treat that as a qualitative claim. Shoppers searching for an oil-free washable panel filter for a 3.6L or 5.7L Grand Cherokee or Durango will find this sized to 9.625 x 8.875 x 2.375 inches.
Because the drop-in format keeps the stock airbox and intake plumbing in place, the swap is a fast maintenance job rather than a full intake conversion. Fitment is described inconsistently across sellers and catalogs, including model years and engine options, so confirm your exact year, engine, and trim with the manufacturer before ordering. When cleaning the element, AEM's installation sheets for its other DryFlow intakes recommend washing and recharging it with its dedicated filter cleaner (part 1-1000) and inspecting it at regular intervals, including a cleaning at 100,000 miles.
No. The manufacturer describes the DryFlow panel as an oil-free synthetic filter, so it is installed dry and does not require filter oil.
Yes. The manufacturer lists the element as washable and reusable. AEM's installation sheets for its other DryFlow intakes call for using its dedicated filter cleaner (part 1-1000) and follow a 100,000-mile cleaning interval, which is a useful reference for this element as well.
Application coverage varies across sellers and catalogs, with differences in model years and engine options. Confirm your exact year, engine, and trim with the manufacturer before ordering.
This is a panel-style drop-in element, so the job is mainly removing the airbox lid, swapping the filter, and reseating the lid so it seals. AEM's installation sheets for its other DryFlow intake kits recommend parking on level ground, letting the engine cool if it has recently run, and disconnecting the negative battery terminal before you start. Keep the stock components in case you need to return to the factory setup. Check that the new panel sits fully in its housing with no gaps, and make sure the lid latches or clips are fully engaged so unfiltered air cannot bypass the element. Manufacturer-specific steps for this exact part number were not confirmed in research, so verify the procedure against your service information before you begin.
