FA3539 Fleet Air Washable Dual Air Filters (PR)
This lifetime washable air filter helps reduce maintenance costs and may improve fuel mileage by up to 0.5 MPG. Designed for increased airflow compared to standard filters, it is built for long-term use with washing recommended every 50,000–75,000 miles under normal conditions. Fits dual exterior air filter systems and replaces several OEM part numbers for Kenworth, Peterbilt, Freightliner, and Western Star applications. Backed by a lifetime warranty and 30-day money-back guarantee. Sold as a pair and requires re-oiling after cleaning.
- Lifetime washable air filter reduces replacement costs
- May improve fuel mileage up to 0.5 MPG
- High-flow design increases airflow over standard filters
- Fits trucks with dual exterior air filter setups
- Wash every 50,000–75,000 miles; re-oil after cleaning
- Replaces Fleet Air FA3539, Baldwin RS3539, Fleet Guard AF25247, Luber Finer LAF4816, Donaldson P534816, Wix 42971, Napa 2971
- Fits Kenworth T800, W900L; Peterbilt 367, 377, 387, 388; Freightliner Classic; Western Star models
- Lifetime manufacturer warranty + 30-day money-back guarantee
- Sold as a pair
Price includes filters only. Klotz Oil, item 198709 is required for proper install. One can will re-oil 2-4 filters.
Original: $841.99
-65%$841.99
$294.70FA3539 Fleet Air Washable Dual Air Filters (PR)
This lifetime washable air filter helps reduce maintenance costs and may improve fuel mileage by up to 0.5 MPG. Designed for increased airflow compared to standard filters, it is built for long-term use with washing recommended every 50,000–75,000 miles under normal conditions. Fits dual exterior air filter systems and replaces several OEM part numbers for Kenworth, Peterbilt, Freightliner, and Western Star applications. Backed by a lifetime warranty and 30-day money-back guarantee. Sold as a pair and requires re-oiling after cleaning.
- Lifetime washable air filter reduces replacement costs
- May improve fuel mileage up to 0.5 MPG
- High-flow design increases airflow over standard filters
- Fits trucks with dual exterior air filter setups
- Wash every 50,000–75,000 miles; re-oil after cleaning
- Replaces Fleet Air FA3539, Baldwin RS3539, Fleet Guard AF25247, Luber Finer LAF4816, Donaldson P534816, Wix 42971, Napa 2971
- Fits Kenworth T800, W900L; Peterbilt 367, 377, 387, 388; Freightliner Classic; Western Star models
- Lifetime manufacturer warranty + 30-day money-back guarantee
- Sold as a pair
Price includes filters only. Klotz Oil, item 198709 is required for proper install. One can will re-oil 2-4 filters.
Product Information
Product Information
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Shipping & Returns
Description
This lifetime washable air filter helps reduce maintenance costs and may improve fuel mileage by up to 0.5 MPG. Designed for increased airflow compared to standard filters, it is built for long-term use with washing recommended every 50,000–75,000 miles under normal conditions. Fits dual exterior air filter systems and replaces several OEM part numbers for Kenworth, Peterbilt, Freightliner, and Western Star applications. Backed by a lifetime warranty and 30-day money-back guarantee. Sold as a pair and requires re-oiling after cleaning.
- Lifetime washable air filter reduces replacement costs
- May improve fuel mileage up to 0.5 MPG
- High-flow design increases airflow over standard filters
- Fits trucks with dual exterior air filter setups
- Wash every 50,000–75,000 miles; re-oil after cleaning
- Replaces Fleet Air FA3539, Baldwin RS3539, Fleet Guard AF25247, Luber Finer LAF4816, Donaldson P534816, Wix 42971, Napa 2971
- Fits Kenworth T800, W900L; Peterbilt 367, 377, 387, 388; Freightliner Classic; Western Star models
- Lifetime manufacturer warranty + 30-day money-back guarantee
- Sold as a pair
Price includes filters only. Klotz Oil, item 198709 is required for proper install. One can will re-oil 2-4 filters.
