FITMENT
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2017-2019 Chevy Silverado GMC Sierra 2500 HD 3500 HD 6.6L Duramax Diesel.
OEM Cross-Reference
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Air Filter:A3231C, A3257C, LAF3231, A41474, WA10695
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Cabin Air Filter: CP809,CF11809, CF188, 23281440, 22808781
DESCRIPTION
Product Overview
- This dual-air filtration combo provides complete intake protection for 2017–2019 6.6L Duramax trucks, refreshing both your engine’s combustion intake and your passenger cabin HVAC airflow in a single package.
- Designed to optimize power delivery and driver comfort, the high-flow engine air filter eliminates intake restriction to ensure sharp turbo response, while the multi-layer cabin filter traps fine dust, seasonal pollen, and harsh highway exhaust fumes. This 2-in-1 maintenance set is the ideal solution for truck owners looking to service both vital air pathways during routine maintenance.
Key Features
- High-efficiency synthetic filter media captures fine dust and airborne particles to protect your engine intake during heavy-duty operations.
- Continuous perimeter seal withstands severe engine bay temperatures to prevent unfiltered bypass air from entering the intake tract.
- Activated carbon cabin layer adsorbs harsh highway exhaust fumes, industrial odors, and seasonal pollen to keep interior air fresh.
- Precision-molded flexible cabin frame creates a tight, gap-free seal inside the factory HVAC housing to prevent unwanted rattles or air noise.
- Synchronized 2-in-1 maintenance set allows you to easily refresh both your engine intake and cabin climate pathways in a single service.
Replacement Interval
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Inspect the engine air filter at 15,000 miles with replacement by 30,000 miles (15,000–20,000 miles under severe dusty conditions), and replace the cabin air filter every 12,000–15,000 miles (or annually). Because interior filters absorb everyday road fumes and dust continuously, servicing your cabin filter on a regular annual cycle keeps your interior air clean between engine service intervals.
FAQ
Q: Can I use a 2020 or newer engine air filter on my 2017–2019 truck?
A: No. Engine air intake housings changed starting in the 2020 model year. 2017–2019 6.6L Duramax trucks require their own specific air filter dimensions to ensure an airtight compression fit inside the factory airbox.
Q: Will using aftermarket replacement filters void my truck’s original factory warranty?
A: Generally, no. Under the U.S. Magnuson-Moss Warranty Act, vehicle manufacturers cannot void your warranty simply for using high-quality aftermarket filters for routine maintenance. However, warranty coverage may be denied if a part fails directly due to an improper installation or poor-quality filter. Our filters are precision-engineered to meet or exceed OEM specifications to keep your factory coverage protected.
Q: How can I tell if my engine air filter needs replacement between scheduled intervals?
A: Perform a simple visual check: hold the filter panel up to bright sunlight or a strong lamp. If light cannot pass through the pleats, or if you see heavy dirt accumulation deep in the pleat valleys, the filter is ready for replacement.
Q: Will replacing the cabin filter fix the intermittent musty smell from my A/C vents?
A: In most cases, yes. The musty smell is caused by bacteria feeding on organic debris trapped in a saturated filter. A fresh filter eliminates the food source and restores normal HVAC airflow.
Q: Looking to add oil or fuel filters to complete your routine maintenance?
A: You can easily step up your package: choose our Air, Cabin & Oil Kit to include an engine oil filter, or select our Full Maintenance Kit to service air, cabin, oil, and fuel filters all in a single order.
