FK-4001AB Primary and Safety Air Filter Set
The FK-4001AB is a two-stage engine air filter set consisting of the FK-4001A primary air filter and the FK-4001B safety air filter.
The set is designed around the Komatsu 600-181-6540 primary and 600-181-6560 secondary filter family used on selected construction equipment and diesel engine applications.
The primary element captures most airborne dust and contamination entering the intake system, while the inner safety element provides additional protection and helps prevent contaminants from entering the engine during primary-filter servicing.
Established replacement references in this family include Fleetguard AF4567 and AF490M, Donaldson P800103 and P119374, MANN-FILTER C 19 457 and C 1281, and Sakura A-5627 and A-6008.
Sakura specifically identifies A-5627 as the primary element, A-6008 as the secondary element and A-5663-S as the complete filter set.
FK-4001A and FK-4001B Specifications
| Specification | FK-4001A Primary | FK-4001B Safety |
|---|
| Main OE Number | 600-181-6540 | 600-181-6560 |
| Filter Position | Primary / Outer | Safety / Inner |
| Outer Diameter | 234 / 186 mm | 147 / 117 mm |
| Inner Diameter | 120 / 17 mm | 89 / 17 mm |
| Overall Height | 382 / 380 mm | 330 mm |
| Product Type | Primary Air Filter | Safety Air Filter |
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