479-8991: Secondary Standard Efficiency Engine Air Filter

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Explore Cat® part 479-8991 secondary standard efficiency engine air filter to help maintain your heavy equipment's engine integrity. This filter provides backup filtration during primary filter maintenance or unforeseen breaches.

Brand: Cat

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479-8991: Secondary Standard Efficiency Engine Air Filter

479-8991: Secondary Standard Efficiency Engine Air Filter

Brand: Cat

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Description

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

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 job site.

Attributes:
•Environmentally friendly.
•Increased airflow with less restriction
•Serves the critical role of backup filtration

Warning:This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specifications

Compatible Models

Track-Type Tractor

Warranty Information

Return Policy

Parts diagram for 479-8991

Frequently bought together

479-8991

479-8989

322-3155

View All Parts

Frequently bought together

479-8991: Secondary Standard Efficiency Engine Air Filter

479-8989: Primary Ultra High Efficiency Engine Air Filter

322-3155: Element Assembly

523-4987: Element-Separator

509-5694: Secondary Fuel Filter Element

500-0957: Standard Efficiency Cabin Air Filter

Diagram

Description

Specifications

Compatible Models

Parts diagram for 479-8991

Description for part number 479-8991

Specifications for part number 479-8991

Compatible Models for part number 479-8991

TRACK-TYPE TRACTOR

D4 D5

WHEELED EXCAVATOR

M322 M320 M318 M319 M317

FORESTRY PRODUCTS

FM528 LL FM528

EXCAVATOR

320 326 GC 320 GX 323 GX 333 GC 326 335 325 320GX 323 OTHER 320 GC 323 GC 323GC

MOTOR GRADER

120

Key

Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced