Quick answer:
The John Deere X520 mower primary engine air filter part number found is AT307501. Cross-reference filters include Baldwin PA5669; Donaldson P609445; Fleetguard AF55757.
Primary air filterAT307501
Cross-referenceBaldwin PA5669
John Deere X520 Air Filter Specs
| Primary air filter part number | AT307501 |
|---|---|
| Secondary / safety air filter | AN403919 |
| Pre-filter | M148207 |
| Cross-reference filters | Baldwin PA5669; Donaldson P609445; Fleetguard AF55757 |
| Number of air filter elements | 3 elements (primary, secondary, pre-filter) |
John Deere X520 Air Filter FAQ
| What air filter does the John Deere X520 use? | The primary engine air filter part number found for the John Deere X520 is AT307501. |
|---|---|
| What air filter cross-references fit the John Deere X520? | Cross-reference filters found for the John Deere X520 include Baldwin PA5669; Donaldson P609445; Fleetguard AF55757. |
| Can I use an aftermarket air filter on the John Deere X520? | The John Deere X520 has 3 cross-reference filters listed, starting with Baldwin PA5669. Use them as aftermarket leads, not as a replacement for checking the original part number AT307501. |
| How many air filter elements are listed for the John Deere X520? | This page lists a primary filter, a safety filter and a pre-filter: 3 elements (primary, secondary, pre-filter). Replace each only with the matching part number for that position. |
| Should I order the John Deere X520 air filter by size or part number? | For the John Deere X520, use AT307501 as the main part number and treat the cross-reference list as aftermarket buying leads. |
| What should I confirm before buying a John Deere X520 air filter? | For the John Deere X520, confirm AT307501 against the parts manual, then use the cross-reference list only after the OEM number matches. |
Official information note
Air filter fit can change by engine, serial number, production year and air-cleaner housing. Check the operator manual, parts manual and official deere.com website before buying or fitting an air filter.






