FITMENT
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2020-2025 Chevrolet Silverado & GMC Sierra 2500 HD 3500 HD
OEM Cross-Reference
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A3248C, 84554703, WA11057, PA10426, PA99537
DESCRIPTION
Product Overview
- Designed for 2020 and newer heavy-duty diesel trucks, this high-performance panel air filter is engineered to keep pace with the high-airflow demands of turbocharged engines. Featuring high-density pleated filtration media, it efficiently captures airborne silica, dust, and fine soot without restricting essential air volume needed for peak engine performance and towing efficiency.
- A premium flexible silicone perimeter seal forms an airtight barrier inside the factory airbox, preventing unfiltered bypass air even under extreme engine vibration and rough off-road driving conditions. Reinforced with a heavy-duty mesh backing, this filter maintains structural integrity under severe vacuum pressure to deliver long-lasting protection for your turbocharger and engine internals.
Key Features
- Advanced multi-layer filtration paper blocks airborne silica, trail dust, and fine soot to safeguard turbocharger impellers and cylinder walls against micro-abrasion.
- Engineered with a pliable red silicone sealing edge that compresses tightly against the airbox channel, preventing dirty air from bypassing the filter during heavy off-road jarring.
- Backed by a durable steel mesh screen to stabilize filter pleats, preventing structural deformation or warping under intense engine suction.
- Engineered pleat geometry minimizes intake restriction to deliver maximum clean air mass, supporting sharp engine response and fuel efficiency under heavy loads.
Replacement Interval
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Replace the air filter every 30,000 miles under normal driving conditions (inspecting at 15,000 miles), or shorten the interval to every 20,000 miles for severe duty in dusty, construction, or off-road environments (inspecting at 10,000 miles) to protect your turbocharger and engine.
FAQ
Q: Why does a 2020+ Chevy Silverado or GMC Sierra 2500 HD/3500 HD require a different air filter than earlier model years?
A: General Motors completely redesigned the engine air intake system and airbox housing starting in the 2020 model year. This A3248C filter features unique physical dimensions and sealing geometry designed specifically for the updated intake housing.
Q: Is this dry filter better for my diesel engine than a washable oiled performance filter?
A: Yes. Washable oiled filters can shed oil residue onto the Mass Air Flow (MAF) sensor, leading to incorrect air/fuel readings and Check Engine lights. This dry synthetic media delivers maximum clean airflow while keeping sensors safe from oil contamination.
Q: What are the primary signs that my engine air filter needs to be replaced?
A: Key signs include reduced fuel efficiency, sluggish acceleration, higher exhaust gas temperatures (EGT) while towing, and more frequent DPF regeneration cycles. Extreme restriction may also trigger a P0299 turbocharger underboost fault code.
Q: Do I need any special tools to replace the engine air filter in my truck?
A: No special tools are required. You only need a standard Torx driver or socket to remove the airbox cover screws. When installing, wipe clean any dirt inside the housing and ensure the red silicone seal seats completely around the perimeter rim before tightening.
Q: Build a complete 2020+ air and cabin service bundle?
A: The 2020-2025 Air & Cabin Combo teams this engine air filter with the matching CF185 cabin filter. Add oil filtration with Air, Cabin & Oil Kit.
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