SEAL KIT 4J9279 - Caterpillar

The purpose of a cabin air filter is to clean the air coming into the cab. There are typically two cabin air filters, a fresh air filter and a recirculation filter. The fresh air filter cleans the outside air prior to entering the cab. The recirculation filter cleans the air that is inside the cab. Cabin air filters help to protect the cab heating and cooling system from dirt and debris. Cabin air filters also help with operator well-being by providing clean air within the cab. The cabin air filters help to create a comfortable working environment for the operator.Note: Cabin air filters are not for use in filtering hazardous materials.Cabin air filters are designed specifically for the application in order to supply the proper air flow to the cab. Consult your Cat dealer for the specific cabin air filter that is designed for your machine. Do not substitute any other cabin air filter.Note: Cabin air filters that are not designed for the air flow and application can damage the cab heating and cooling system causing poor performance. Consult your Cat dealer for the specific cabin air filter that is designed for your machine and do not substitute any other cabin air filter.High-quality cabin air filter systems have the following characteristics:
Allow the appropriate volume of clean air to the cab
Designed with the capacity for the intended life and maintenance intervals
Withstand the vibrations expected in the machine and application
Effectively clean the air to protect the cab heating and cooling components
Create a cleaner and more comfortable working environment for the operator
Allow for ease of serviceability
Precisely fit into the machine designNote: Cabin air filters for off-road machines have to be robust and offer desired life and performance under demanding conditions. Off-road machines typically experience high vibration, high impacts, and dusty environments. The cabin air filter elements used in off-road applications have to offer high dirt holding capacity in order to protect the cab heating and cooling system for the designed service life of the filter. Use of inferior quality filters or use of filters other than the filters recommended for your machine may cause poor performance and damage to the cab heating and cooling system.Cat cabin air filters are designed for optimal fit and performance into all Cat machines. These filters are developed using high-quality materials, along with precise designs and dimensions. These filters offer the best capacity, level of filtration, and service life needed for all Cat machines and for all conditions of operation.Cabin air filters are selected based on the air flow requirements of the cab. The following are the main components for designing a cabin air filter for the application.Cab Air Flow - Air flow needed for appropriate cab pressurization, as well as heating and cooling. Cab air flow is typically expressed in cubic feet per minute (cfm), cubic meters per minute (m3/min), or kilograms per hour (kg/hr).Initial and Final Restriction - Air restriction limit needed to ensure continuous flow of appropriate volume throughout the service life of