Description
Upgrade your intake system with the aFe 24-91042 Magnum FLOW Pro 5R Air Filter, a high-performance replacement for the Donaldson ECB085011 BHAF (Big Honkin’ Air Filter). Engineered for serious airflow and filtration, this conical air filter features Pro 5R factory-oiled media—delivering up to 19% more airflow than the OE paper element (427 CFM at 1.5″ H₂O).
Built with five layers of progressively finer oiled cotton gauze, this filter maximizes horsepower and torque while maintaining high dust-holding capacity. The 100% polyurethane top and base offer long-lasting durability, and the flange is reinforced with an embedded metal ring to prevent distortion and ensure a leak-free seal—even under high suction loads.
Washable and reusable, the 24-91042 is built for multiple cleaning cycles and extended service intervals, making it a long-term upgrade for high-demand diesel and performance setups.
Key Features:
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Part Number: 24-91042
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Media: Pro 5R – Five-layer progressively finer oiled cotton gauze
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Replaces: Donaldson ECB085011 (BHAF)
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Airflow: 19% more flow – 427 CFM at 1.5″ H₂O
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Construction:
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100% polyurethane top and base
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Embedded metal ring in flange prevents seal failure
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Reusable: Washable and reusable for multiple cleanings
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Performance: Built for maximum horsepower, torque, and filter life
- Essentials: Pre-Filter – 28-10293
Fitment / Sizing:
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Flange Diameter: 4″
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Base: 8.5″
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Top: 8.5″ (Inverted)
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Height: 11″
Note: Universal application—ensure fitment based on dimensions and filter housing specs.
What’s Included:
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1 x aFe Magnum FLOW Pro 5R Air Filter – Part #24-91042
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Installation Instructions
