Caterpillar 6I-2508 6I2508 Engine Air Filter

$ 84.89
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  • Availability: In Stock
  • Product Sku: 6I-2508-1Pack
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Standard Efficiency Engine Air - Secondary

It pays to choose genuine Cat® Filters to protect the iron that generates your income.

Cat Secondary Engine Air Filters are your last line of defense against dust, dirt and other contaminants that may damage the components of your income-producing machinery. Tasked with protecting the engine while the primary filter is being changed or in the event of a breach in the main filter, this secondary unit plays a critical role in preventing damage due to contaminants.

Constructed of durable materials and manufactured to meet Caterpillar’s stringent specifications, these air filters deliver the consistent quality and reliability that Cat owners count on. Because uptime and cost-effective maintenance are critical, Cat Air Filters have been specifically designed to protect and optimize the power of your Cat iron.

Working together, genuine Cat Primary and Secondary Filter Elements provide a cost-effective method for maintaining your engine’s integrity and increasing your equipment’s uptime on the jobsite.

  • Environmentally friendly
  • Increased airflow with less restriction
  • Serves the critical role of back-up filtration

Specifications for Cat 6I2508 Air Filter:

Efficiency Rating: Standard Efficiency
Primary vs Secondary: Secondary
Seal Type: Radial Seal



Engine - Generator Set
3406B 3406C SR4

Engine - Industrial
3306B 3406 3406B 3406C 3408 3408B G3408 G3408B G3508 G3512 G3516

Wheel Tractor-Scraper
621B 621E 621F 621G 623B 623E 623F 623G 627B 627E 627F 627G 631E 633E II 637E 637G

Track-Type Tractor
58L 59L 59N 9 9SU 9U D8L D9N D9R

Load, Haul, Dump


alco MD7524S, BALDWIN RS3513, CARQUEST 88411, DONALDSON P532508, FIL HP2540, FLEETGUARD AF25289M, HASTINGS AF2209, HIFI-FILTER SA16022, LUBER-FINER LAF4508, Mecafilter FA3467, MISFAT R478, SAKURA A5560


* All fitment filter part numbers are based on your engine serial number.
* Please confirm with our team if you are unsure this filter will fit your engine.