Caterpillar 1W-3636 1W3636 Engine Air Filter

$ 139.79
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  • Availability: In Stock
  • Product Sku: 1W-3636-1Pack
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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 1W3636 Air Filter:

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


Engine - Generator Set
C15 C18

Petroleum Products
C15 C18 CX35-C18I CX35-P800 CX38-P892

Off-Highway Truck
785C 789 789B 789C 797

Marine Products

Engine - Industrial
C15 C15 I6 C18 C18 I6


AC-DELCO A902C, AIR REFINER 10616, ARM-11-7781, BALDWIN PA2454, CANADIAN MFRS. LTD. CFM617, CARQUEST 87239, CASE P1050506, CATERPILLAR 1W-3636, 3I-0105, DELUXE AF-683, DONALDSON P117781, P142746, P150553, SRG20/29, X009238, DRILTECH INC 001036-61, EUCLID 4022650, FLEETGUARD AA2907, AF880, FLEETLIFE FA-11-7781, FLEETRITE AFR-8880, Fram CA1570SY, GENERAL MOTORS 25043066, 9038349, GUARDIAN G11-7781, HASTINGS AF577, HEAVY DUTY AIR A-7781, HDA-7781, KOMATSU 581-02-12130, KRALINATOR LA617, LETOURNEAU WESTINGHOUSE VJ-5176, LUBER-FINER LAF1816, NAPA 2239, NELSON 117781, 70121N, NU-TECH SS022, PUROLATOR A72921, UNIT 901620, WIX 42239, 42576

* 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.