FK-4004AB Primary and Safety Air Filter Set
The FK-4004AB is a matched two-stage engine air filter set consisting of the FK-4004A primary element and FK-4004B safety element.
The primary element corresponds to the Komatsu 600-185-4110 filter family and established replacements including Donaldson P532966, Fleetguard AF25667, MANN-FILTER C 24 015/3, Sakura A-5666 and Baldwin RS3517.
The inner safety element corresponds to 600-185-4120, with established replacement references including Donaldson P533781, Fleetguard AF26114, MANN-FILTER CF 14 002, Sakura A-5667 and Baldwin RS3717.
Komatsu also identifies 600-185-4100 as the complete air filter kit, while Sakura identifies the paired 600-185-4110 + 600-185-4120 configuration as A-5668-S.
00-185-4110 / 600-185-4120 Air Filter Cross Reference
| Brand | Primary / Outer Filter | Safety / Inner Filter |
|---|
| Komatsu | 600-185-4110 | 600-185-4120 |
| Donaldson | P532966 | P533781 |
| Fleetguard | AF25667 | AF26114 |
| MANN-FILTER | C 24 015/3 | CF 14 002 |
| Sakura | A-5666 | A-5667 |
| Baldwin | RS3517 | RS3717 |
| WIX | 46744 | 46782 |
| HIFI FILTER | SA16348 | SA16349 |
| Luber-finer | LAF4498 | LAF3781 |
| Doosan / Daewoo | 474-00040 / 97400040 | 474-00039 / 97400039 |
| Hyundai | 11N6-27040 | 11N6-27030 |
| Case | 249987A1 | 249988A1 |
| John Deere | AT178516 | AT178517 |
| Kobelco | GG11P00008S002 | LQ11P00023S002 |
| Liugong | 40C1033 | 40C1032 |
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