Donaldson Dura Lite primary round air filter 11 in body length — lightweight cellulose, disposable, high-flow (B085011)

The Donaldson Dura Lite B085011 is a lightweight, disposable 11.00-inch primary round air filter built with cellulose media for dependable engine intake protection and strong airflow performance.

Designed as a non-metallic, self-supporting primary air cleaner, the Dura Lite B085011 offers a balance of filtration efficiency and reduced weight for heavy-duty diesel and industrial applications. Its all-in-one disposable construction simplifies service intervals and eliminates the need for a separate housing, while industry cross-references make replacement straightforward for equipment using Cummins and Hercules primary filters.

What are the key specifications and flow ratings for this filter?

The Dura Lite B085011 is rated across multiple flow points to match variable engine demands. It performs reliably at low, medium and high flow conditions, so operators know what to expect under different loads.

• Body length: 11.00 inches (compact, space-efficient fit)
• Media: cellulose-based primary filtration material
• Rated flow (Lr): 280 CFM (7.92 CMM)
• Rated flow (Mr): 400 CFM (11.32 CMM)
• Rated flow (Hr): 470 CFM (13.3 CMM)

Which engines and part numbers is the B085011 compatible with?

This Donaldson primary filter directly replaces or cross-references common manufacturer part numbers, simplifying maintenance planning for fleets and service shops. Confirm fitment by comparing dimensions and flow requirements with the original equipment manual.

• Primary application: Cummins part 2912986
• Primary application: Hercules part B085008
• Alternate reference: Hercules 400000642
• Round, primary-style configuration suitable for compatible housings

How does the Dura Lite design affect installation and durability?

Dura Lite filters are engineered as non-metallic and self-supporting, which reduces weight and prevents corrosion concerns found with metal components. Because the unit is disposable and structurally stable on its own, installation is quick and replacement intervals are straightforward.

• Non-metallic construction resists rust and reduces overall component weight
• Self-supporting body holds shape without external reinforcement
• Disposable design eliminates need for cleaning or rebuilding
• Round shape allows simple twist-and-seat or clamp-style mounting where applicable

What performance benefits can maintenance teams expect?

Maintenance crews benefit from predictable flow ratings and the convenience of a single-use primary filter. The cellulose media balances capture efficiency and airflow, helping systems maintain proper intake performance when the element is changed on schedule.

• Consistent airflow at defined rated flow points for stable engine performance
• Lower weight simplifies handling during service
• Disposable element reduces downtime compared with cleaning and reassembly

Who is this for: The Donaldson Dura Lite B085011 is suitable for fleet managers, diesel mechanics, and equipment operators seeking a direct-fit, disposable primary air filter for compatible Cummins and Hercules applications. It is particularly useful where weight savings, straightforward replacement, and reliable rated flow across operating conditions are priorities. Always verify compatibility with your engine manual or parts diagram before purchase.