SKU:KNN33-5083
K&N Engineering
K&N High-Flow Drop-In Air Filter | 2020-2026 GMC Sierra 2500HD
K&N High-Flow Drop-In Air Filter | 2020-2026 GMC Sierra 2500HD
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The K&N High-Flow Air Filter is a washable, reusable drop-in replacement for the 2020-2026 GMC Sierra 2500HD factory air box. It boosts airflow over the stock paper filter for improved performance.
Product Overview
K&N's layered, oiled cotton media is engineered to flow more air while still capturing contaminants. The result is increased airflow to your Duramax or Vortec engine without sacrificing filtration.
This filter installs directly into the factory air box with no modifications. It's built to last the lifetime of your truck and is backed by K&N's 10-Year/Million Mile Limited Warranty.
Features & Specifications
- Fits: 2020-2026 GMC Sierra 2500HD
- Washable and reusable oiled cotton media
- Higher airflow vs. stock paper filter
- Drop-in fit, no modifications needed
- Layered cotton captures contaminants
- Installs in the factory air box
- 10-Year/Million Mile Limited Warranty
- Engineered to last the life of the truck
Fitment
This part fits the following vehicles:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2026 | GMC | Sierra 2500 HD | AT4 |
| 2024-2026 | GMC | Sierra 2500 HD | AT4X |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2026 | GMC | Sierra 2500 HD | Denali |
| 2022-2026 | GMC | Sierra 2500 HD | Pro |
| 2020-2026 | GMC | Sierra 2500 HD | SLE |
| 2020-2026 | GMC | Sierra 2500 HD | SLT |
Shipping & Returns
Shipping & Returns
Tracking is typically provided within 3–5 business days; items shipping direct from the manufacturer may take 5–7. Some items are made to order or may be backordered. Questions about stock? Reach us through live chat or email.
Warranty
Warranty
All warranties are through the manufacturer and are facilitated by Stateside Performance. Some manufacturers require the end user to contact them directly; in that case we will point you to the right contact. Email us with any warranty questions.
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Free shipping over $250
Shipping policyFree shipping applies to items that are shipped via ground through UPS or FedEx and are over $250 going to the continental 48 states. This does not apply to Alaska or Hawaii, and does not apply to any item(s) that are shipped via freight or with any other option other than ground shipping.
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30-day returns
Return policyReturns must be requested within 30 days of delivery. Parts must be new, unused, uninstalled, and in original packaging, with an RMA. Some items are final sale.