Komatsu Excavator Filters Guide

Komatsu at a Glance

Komatsu Ltd. is a Japanese construction and mining equipment manufacturer founded in 1921, and one of the two largest in the world. Its PC-series hydraulic excavators, WA wheel loaders, D-series dozers, and GD motor graders are widely used across Asia, Africa, Latin America, Australia, and Europe. Komatsu is also known for its KOMTRAX remote monitoring system and for building its own engines.

Main Komatsu Machine Families

Komatsu PC200 and PC210. The 20-tonne class workhorse, available in -7, -8, -10, and -11 generations. These are among the most common machines in the world, so PC200 filters are among the most requested Komatsu parts.

Komatsu PC220, PC240, PC270. Mid-size excavators used in general construction, pipelines, and quarry work.

Komatsu PC300 and PC350. Larger excavators for heavy earthmoving, powered by the SAA6D114E engine.

Komatsu PC450 to PC800. Large excavators for mining and heavy construction, powered by SA6D125-series engines.

Komatsu WA wheel loaders and D dozers. WA250, WA320, and WA480 loaders and D41 and other dozers share many filter designs with the excavator range.

Common Komatsu Filter Part Numbers

The references below are commonly listed in aftermarket catalogs and in Komatsu service kit contents for popular PC and WA models.

Komatsu publishes service kits grouped by operating hours. Several different filter variants exist within the same model name, so always confirm by serial number.

Komatsu Filter Maintenance Guide

Engine oil filters. Replace the lube filter at every oil change. Komatsu's larger machines use two filters per service, so replace them as a pair.

Fuel filters. Komatsu's high-pressure common-rail engines require clean fuel. Replace the main and pre-filter on schedule and drain the water separator regularly.

Air filters. Replace the outer element when the dust indicator shows restriction. Do not clean or reuse the inner element, since it is the final protection for the engine.

Hydraulic filters. Replace the return filter at the manual's interval, and replace pilot filters and the hydraulic tank breather together, since contamination in these circuits causes erratic control.

Service kits. Komatsu service kits are organized by interval, typically 500, 1,000, and 2,000 hours, and replacing every filter in the kit together is the simplest way to avoid missed items.

Service intervals are set by the machine manufacturer and depend on the model, engine, fluid specification, and working conditions. Always follow the maintenance schedule in the operator's manual for your specific machine.

How to Choose the Right Replacement Filter for a Komatsu

• Use the machine model with its suffix (such as PC200-8 or PC200-8M0) and the serial number range, because suffix changes often mean different filters.
• Match the Komatsu part number, then confirm dimensions, threads, and seals.
• Check that the replacement meets the original efficiency and bypass specification, especially for hydraulic filters.
• Buy complete interval kits where possible so all filters are replaced together.

Frequently Asked Questions

What fuel filter does a Komatsu PC200-8 use? Listings for PC200-8 commonly reference Komatsu 600-311-3750 and 600-319-3750, but earlier or variant machines may use other numbers. Verify by serial number.

What hydraulic filter does a Komatsu PC200 use? Komatsu 20Y-60-31430 is commonly listed as the hydraulic return element for PC200-7 and PC200-8 excavators, among others.

Can aftermarket filters be used on Komatsu machines? Yes, if they meet or exceed the original specification for efficiency, flow, and pressure rating and come from a manufacturer able to supply test data.

For contractors, rental fleets, and distributors sourcing replacement filters for Komatsu machines, ADAOER Filter manufactures fuel, oil, air, hydraulic, and cabin filters for excavators, loaders, and other construction machinery, and supports OEM/ODM development for custom specifications. Cross-reference lists are available on request.

Brand names and part numbers are used for identification and compatibility reference only. Caterpillar, Cat, Komatsu, and Volvo are trademarks of their respective owners. Part numbers vary by machine model, serial number range, engine, and emission level, so always verify the correct filter against your machine's serial number and engine code before ordering.