Caterpillar 6I-2503 6I2503 Engine Air Filter

$ 84.96
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  • Product Sku: 6I-2503-1Pack
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Standard Efficiency Engine Air Filter - Primary

Contamination is your engine’s number one enemy, which is why it’s critical to protect your Cat equipment with genuine Cat Filter Elements. Cat Standard Efficiency Primary Engine Air Filters are your best value for normal duty applications, delivering increased engine protection and preventing equipment downtime.

Offering a long service life and exceptional filtration, Cat Air Filters are also environmentally friendly and cost effective. Designed to the exact specifications of your Cat equipment, genuine Cat Filters are a crucial factor in your machine’s ability to use air efficiently. A clean filter element protects internal mechanisms from being damaged by dirt.

Consistently choosing Cat Air Filters is the best choice to ensure long life and optimum performance of your Cat machinery.


  • Quick serviceability
  • Improved contamination control holds particulates during filter change

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


Engineer Support Tractor
30/30 DEUCE

Earthmoving Compactor
815F 816F

Forest Products
322C 533 543 558 TK370 TK371 TK380 TK381

Wheel-Type Loader
966E 966D 966F II 966G 970F 972G

Wheeled Excavator
M325C MH W330B

Material Handler
M325D L MH M325D MH

Engine - Generator Set

Wheel Dozer

Asphalt Paver
AP-1000B AP-1000D AP-1050B AP-1055B AP-1055D AP-655C BG-2255C BG-2455C BG-2455D BG-245C BG-260C BG-260D

235C 322C 322C FM 324D 324D FM 324D FM LL 324D L 324D LN 324E 324E L 324E LN 325C 325C FM 325C L 325D 325D FM 325D FM LL 325D L 325D MH 326D L 326D2 326D2 L 326F 326F L 326F LN 328D LCR 329D 329D L 329D LN 329D2 329D2 L 329E 329E L 329E LN 329F L 330B 330B L 330B LN 330D2 330D2 L 330F 330F L 330F LN 330F OEM 330FMHPU 335F 335F LCR M325D L MH M325D MH

Engine - Industrial
3306 3306B 3406C XQ230

Wheel Tractor-Scraper
611 613C II 615C 615C II 627E

* 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.