Carquest 87947 CFI Premium Secondary Air Filter

Description:

The Carquest 87947 CFI Premium Secondary Air Filter is used in heavy-duty engine air intake filtration systems. Commonly installed in commercial trucks, agricultural equipment, construction machinery, industrial diesel engines, and off-highway equipment utilizing dual-stage air cleaner assemblies. Fleet maintenance teams, diesel technicians, and equipment operators use this secondary air filter for scheduled maintenance, preventive servicing, and replacement of contaminated safety filter elements to protect engines during primary filter servicing.

Applications:

The Carquest 87947 CFI Premium Secondary Air Filter is designed to provide backup engine protection by preventing dust, dirt, and airborne contaminants from entering the intake system while the primary air filter is being serviced. It is widely used in heavy-duty trucks, agricultural machinery, construction equipment, industrial engines, and fleet maintenance operations where reliable secondary filtration helps maximize engine performance and extend service life.

Technical Specifications:

• Manufacturer: Carquest (CFI Premium Filters)
• Part Number: 87947
• Product Type: Premium Secondary Air Filter
• Filter Type: Secondary (Safety) Air Filter
• Shape: Round
• Filter Media: High-efficiency filtration media
• Height: 11.25 in.
• Outside Diameter: 4.5625 in.
• Inside Diameter 1: 0.65625 in.
• Inside Diameter 2: 3.4375 in.
• Gasket/Seal Included: Yes
• Reusable: No
• Function: Secondary engine air intake filtration
• Typical Equipment: Agco, Case, John Deere, Massey Ferguson, Vermeer, and White equipment utilizing compatible dual-stage air cleaner systems

Common Replacements:

• Donaldson P822768
• Fleetguard AF25538
• Baldwin PA2818