The aFe ProGuard OE replacement air filter for 2017–2019 GM Sierra 3500 HD diesel trucks (6.6L L5P) uses deep pleats and a foam pre‑filter to increase filtration capacity and trap larger particles before they reach the primary media. It protects the engine in dusty conditions and follows OE replacement form, with recommended service intervals around 12,000–15,000 miles and compatibility with the OEM GM part number 84850016.
aFe 17-19 GM Sierra 3500 HD Power ProGuard OE Replacement Air Filter