Caterpillar
1131579
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
Air Filter13 Direct
Fleetguard
AF4221
Cross-reference and physical dimensional analysis for OEM/aftermarket reference AF4221. Inspect the specification table below before selecting a replacement cartridge or canister.
Equivalent Part Numbers(13 Cross-Matches)
Sorted by direct catalog match, then by 2-hop transitive inference.
OEM
1131582
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
1153622
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
49579
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
549579
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
83579
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
9579
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
AF0422100
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
AF0422100JX
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
E785LS
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
P625130
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
PA3933
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
OEM
SA16499
Direct Match
Partial Equivalence Note
Cross-reference published by Fleetguard for AF4221.
Comparing the numbers
Figures come from each manufacturer as published, and equivalents rarely match to the millimetre. Thread pitch and gasket diameter have to match for the filter to seal at all. For height, diameter and bypass pressure, check the difference against what your engine manufacturer allows before fitting.