Excavator Filters
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426-07-32441 is a rectangular cab air-conditioner fresh-air filter. The official product catalog publishes dimensions of 34.7 x 34.3 x 6.4 cm and identifies 426-07-32442 as its current replacement. Official service-kit records confirm 426-07-32441 as the fresh-air element for HM400-2 and as an A/C element for WA470-6 machines. The imported 427-07-22120 reference was removed because it is a separate filter with different dimensions, not an interchange. Confirm the cab housing, frame dimensions, machine model and serial range before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Listed Komatsu Number | Superseded A/C filter | 426-07-32441 |
| Current Replacement Komatsu Number | Latest official product | 426-07-32442 |
| Excluded Separate Filter | Different dimensions; not interchangeable | 427-07-22120 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
3 model references
Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.
Quick fitment answers
Recorded compatible model references include Komatsu HM400-2: Official fresh-air filter service application, Komatsu WA470-6 / WA470-6H: Official service-kit application, Fitment limitation: Confirm model suffix, serial range and cab housing. Confirm the complete part number and machine serial range before ordering.
No alternate number is listed for 426-07-32441. Send the original nameplate for an alternate-number check.
Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.
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