The engine air filter typically costs about 15–40, and the cabin air filter about 15–60. If you have a shop replace it, you’ll also pay labor, which varies by location but commonly adds another 30–100.
What you’re buying: engine air filter vs. cabin air filter
The 2021 Chevy Blazer uses two different filters with distinct purposes and price ranges. The engine air filter cleans the air entering the engine, while the cabin air filter helps keep the interior air free of dust and pollen. Replacement intervals differ, and so can the price depending on whether you choose aftermarket parts or GM/OEM equivalents.
Below are typical price ranges you’ll encounter at retailers and dealerships, depending on part type and source.
- Engine air filter (aftermarket/non-OEM): about $8–$25
- Engine air filter (OEM-equivalent/GM parts): about $15–$40
- Engine air filter (dealer/GM Parts site or premium options): about $25–$60
Prices vary by retailer, model year fitment, and whether the filter is a basic or premium design (some high-performance or specialty filters may sit outside these ranges). Replacing the engine air filter yourself can save on labor costs, while dealer-installed replacements will include service charges.
Cabin air filter price ranges
The cabin air filter protects the inside of your Blazer from dust, pollen, and pollutants. Prices tend to be similar to engine filters but overall can run a bit higher for OEM or premium cabin-filter designs.
Below are typical price ranges for cabin air filters from various sources.
- Cabin air filter (aftermarket): about $10–$25
- Cabin air filter (OEM-equivalent/GM parts): about $20–$40
- Cabin air filter (dealer/GM Parts site or premium options): about $25–$60
Shopping around can yield savings, especially if you find multi-pack deals or kit options that include both filter replacements. Labor costs, if you choose professional installation, will vary by location and shop rates.
DIY vs professional installation and total cost considerations
DIY replacement
Both engine and cabin air filters are among the simpler maintenance tasks. If you’re comfortable with basic hands-on car care, you can expect to pay only for parts (roughly $8–$60 total, depending on which filter and source). Tools are usually minimal, and the job typically takes under 30 minutes for either filter.
Professional installation
Having a mechanic or dealership install the filters adds labor costs, which commonly run around 30–100 or more, depending on labor rates and local taxes. Total job cost (parts plus labor) generally falls into the following ranges:
- Engine air filter installed: roughly $25–$100 total
- Cabin air filter installed: roughly $40–$120 total
Prices can vary with the exact trim, engine option, and regional labor rates. Always confirm whether the quoted price includes parts and labor or if taxes and disposal fees apply.
Summary
For a 2021 Chevy Blazer, plan on about 15–40 for an engine air filter and 15–60 for a cabin air filter when buying the part alone. If you opt for professional installation, add labor costs that vary by location and shop. When shopping, compare OEM-equivalent GM parts with aftermarket options to find the best balance of price and fit. Regular maintenance of both filters helps keep engine performance and interior air quality up to standard.