Excavator Filters
4 product photos · Swipe on mobile, or hover and select a thumbnail.
Axial-seal secondary air filter identified by part number AF25545. The manufacturer page specifies a 596.9 mm height, 251.2 mm largest outside diameter and cellulose media, and lists Sullair 900 XHH CAT and 1150 XHH CAT equipment. AF25545 is the safety element used with AF25544/AF25544NF, not an interchangeable primary filter. Four exact owned photographs are retained.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Product Number | Secondary axial-seal air filter | AF25545 |
| Paired Primary Filter | Safety element used with; not interchangeable | AF25544 |
| Paired Primary Filter | Safety element used with; not interchangeable | AF25544NF |
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 Sullair compressor: 900 XHH CAT / 1150 XHH CAT, Cummins engine: QSV91 and listed power-generation applications, Fitment limitation: Confirm housing, primary/safety pairing and equipment serial. Confirm the complete part number and machine serial range before ordering.
No alternate number is listed for AF25545. 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.
Continue comparing verified references from the same system.
Excavator Filters529-0132 Secondary Engine Air Filter for Cat 320E 320F D6K2 953K529-0132
Excavator Filters528-7222 Primary Engine Air Filter for Cat 320E 320F D6K2 953K528-7222
Excavator Filters479-8991 Secondary Engine Air Filter for Cat 320 320 GC 323479-8991
Excavator Filters479-8989 Primary Engine Air Filter for Cat 320 320 GC 323479-8989
