Air Filters

Primary Air Filter - Replacement for Allis-Chalmers 640660 - PartsOnline
Allis-Chalmers Primary Air Filter - Replacement for Allis-Chalmers 640660
$23.00
Primary Air Filter - Replacement for Hitachi 639050 - PartsOnline
Hitachi Primary Air Filter - Replacement for Hitachi 639050
$23.00
Primary Air Filter - Replacement for Clark 886524 - PartsOnline
Clark Primary Air Filter - Replacement for Clark 886524
$23.00
Primary Air Filter - Replacement for Allis-Chalmers 639050 - PartsOnline
Allis-Chalmers Primary Air Filter - Replacement for Allis-Chalmers 639050
$23.00
Primary Air Filter - Replacement for Atlas Weyhausen 837620 - PartsOnline
Atlas Weyhausen Primary Air Filter - Replacement for Atlas Weyhausen 837620
$23.00
Primary Air Filter - Replacement for Terex 583456 - PartsOnline
Terex Primary Air Filter - Replacement for Terex 583456
$23.00
Primary Air Filter - Replacement for Clark 792240 - PartsOnline
Clark Primary Air Filter - Replacement for Clark 792240
$23.00
Primary Air Filter - Replacement for Manitou 554436 - PartsOnline
Manitou Primary Air Filter - Replacement for Manitou 554436
$23.00
Primary Air Filter - Replacement for Jacobsen 549633 - PartsOnline
Jacobsen Primary Air Filter - Replacement for Jacobsen 549633
$23.00
Primary Air Filter - Replacement for Allis-Chalmers 722256 - PartsOnline
Allis-Chalmers Primary Air Filter - Replacement for Allis-Chalmers 722256
$23.00
Primary Air Filter - Replacement for Terex 472306 - PartsOnline
Terex Primary Air Filter - Replacement for Terex 472306
$23.00
Primary Air Filter - Replacement for Komatsu 472306 - PartsOnline
Komatsu Primary Air Filter - Replacement for Komatsu 472306
$23.00
Primary Air Filter - Replacement for Compair 472306 - PartsOnline
Compair Primary Air Filter - Replacement for Compair 472306
$23.00
Primary Air Filter - Replacement for Towmotor 674979 - PartsOnline
Towmotor Primary Air Filter - Replacement for Towmotor 674979
$23.00
Primary Air Filter - Replacement for Ingersoll Rand 434941 - PartsOnline
Ingersoll Rand Primary Air Filter - Replacement for Ingersoll Rand 434941
$23.00
Primary Air Filter - Replacement for CAT 674979 - PartsOnline
CAT Primary Air Filter - Replacement for CAT 674979
$23.00
Primary Air Filter - Replacement for Allis-Chalmers 674953 - PartsOnline
Allis-Chalmers Primary Air Filter - Replacement for Allis-Chalmers 674953
$23.00
Primary Air Filter - Replacement for Hobart 404203 - PartsOnline
Hobart Primary Air Filter - Replacement for Hobart 404203
$23.00
Primary Air Filter - Replacement for International 395540 - PartsOnline
International Primary Air Filter - Replacement for International 395540
$23.00
Primary Air Filter - Replacement for Atlas Weyhausen 387620 - PartsOnline
Atlas Weyhausen Primary Air Filter - Replacement for Atlas Weyhausen 387620
$23.00
Primary Air Filter - Replacement for Allis-Chalmers 659389 - PartsOnline
Allis-Chalmers Primary Air Filter - Replacement for Allis-Chalmers 659389
$23.00
Primary Air Filter - Replacement for International 383728 - PartsOnline
International Primary Air Filter - Replacement for International 383728
$23.00
Primary Air Filter - Replacement for Hyster 379411 - PartsOnline
Hyster Primary Air Filter - Replacement for Hyster 379411
$23.00
Primary Air Filter - Replacement for New Holland 583456 - PartsOnline
New Holland Primary Air Filter - Replacement for New Holland 583456
$23.00
Primary Air Filter - Replacement for John Deere 349999 - PartsOnline
John Deere Primary Air Filter - Replacement for John Deere 349999
$23.00
Primary Air Filter - Replacement for CAT 583456 - PartsOnline
CAT Primary Air Filter - Replacement for CAT 583456
$23.00
Primary Air Filter - Replacement for Hyster 305080 - PartsOnline
Hyster Primary Air Filter - Replacement for Hyster 305080
$23.00
Primary Air Filter - Replacement for New Holland 279108 - PartsOnline
New Holland Primary Air Filter - Replacement for New Holland 279108
$23.00
Primary Air Filter - Replacement for Dynapac 499190 - PartsOnline
Dynapac Primary Air Filter - Replacement for Dynapac 499190
$23.00
Primary Air Filter - Replacement for Atlas Weyhausen 277517 - PartsOnline
Atlas Weyhausen Primary Air Filter - Replacement for Atlas Weyhausen 277517
$23.00
Primary Air Filter - Replacement for Gehl 259503 - PartsOnline
Gehl Primary Air Filter - Replacement for Gehl 259503
$23.00
Primary Air Filter - Replacement for Hitachi 248882 - PartsOnline
Hitachi Primary Air Filter - Replacement for Hitachi 248882
$23.00
Primary Air Filter - Replacement for Allis-Chalmers 248882 - PartsOnline
Allis-Chalmers Primary Air Filter - Replacement for Allis-Chalmers 248882
$23.00
Primary Air Filter - Replacement for Allis-Chalmers 243612 - PartsOnline
Allis-Chalmers Primary Air Filter - Replacement for Allis-Chalmers 243612
$23.00
Primary Air Filter - Replacement for Hitachi 243163 - PartsOnline
Hitachi Primary Air Filter - Replacement for Hitachi 243163
$23.00
Primary Air Filter - Replacement for Hobart 408436 - PartsOnline
Hobart Primary Air Filter - Replacement for Hobart 408436
$23.00

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Air Filter Fitment and Compatibility

Air filters match to the air cleaner housing on your engine, so the OEM number on the old element is the reliable identifier. Common elements fit Bobcat loaders, including the outer air filter that replaces OEM 6598492, its inner safety element that replaces OEM 6598362, and the outer filter that replaces OEM 6666375 on larger frames. Coverage spans deep into John Deere, Allis-Chalmers, International, and New Holland tractor lines.

Outer and inner elements are a matched pair in most housings. The outer element does the filtering and takes the service interval, while the inner safety element guards the intake during outer element changes. Product pages list both the housing applications and the paired element where one exists.

Types of Replacement Air Filters

Conventional round elements seal against the housing ends and remain standard on older tractors and equipment. Radial seal elements grip the housing outlet tube directly, seat without wing nuts, and dominate modern designs. Inner safety elements sit inside the outer filter as the last line of defense and are replaced less frequently, typically every third outer element change.

Black smoke under load, power loss, and a triggered restriction indicator are the working signs of a loaded air filter. Dusty conditions shorten intervals dramatically, and tapping an element clean shortens its life rather than extending it, since the paper media tears at the pleats.