Komatsu Cabin Air Filter | Part 22B-979-1740

Product Overview

The Komatsu 22B-979-1740 Cabin Air Filter is a critical safety and maintenance component designed to protect the operator by filtering out dirt, dust, and other airborne contaminants from the cab environment. This filter ensures a clean air supply to the HVAC system, helping to maintain cab pressurization and preventing debris from clogging the heater and evaporator cores. High-quality materials and a robust design ensure it can withstand the demanding conditions of excavation and grading sites.

This part is used across a broad range of Komatsu compact and specialized excavators, including the PC128US-2, PC138US-2, PC20MR-3, and PC228US-3. It is also a standard fit for many other models in the PC series and certain Komatsu motor graders. Regularly replacing this filter—typically as part of a 500 or 1,000-hour service interval—is essential for operator comfort and the efficient operation of the machine's climate control system.