Quick answer:
The John Deere X394 mower primary engine air filter part number found is RE46310. Cross-reference filters include Donaldson P607365; Fleetguard AF25570. Filter dimensions found include Outer diameter: 9 in / 230 mm; Inner diameter: 5.8 in / 147 mm.
Primary air filterRE46310
Cross-referenceDonaldson P607365
Filter sizeOuter diameter: 9 in / 230 mm
Engine power22 hp
John Deere X394 Air Filter Specs
| Primary air filter part number | RE46310 |
|---|---|
| Secondary / safety air filter | AN403919 |
| Pre-filter | M96846 |
| Cross-reference filters | Donaldson P607365; Fleetguard AF25570 |
| Air filter size | Outer diameter: 9 in / 230 mm; Inner diameter: 5.8 in / 147 mm |
| Outer diameter | 9 in / 230 mm |
| Inner diameter | 5.8 in / 147 mm |
| Number of air filter elements | 3 elements (primary, secondary, pre-filter) |
| Engine model | Kawasaki |
| Engine horsepower | 22 hp |
| Engine displacement | 44.3 cu in (0.73 L) |
John Deere X394 Air Filter Charts
Air filter dimensions
Engine horsepower
Engine displacement
John Deere X394 Air Filter FAQ
| What air filter does the John Deere X394 use? | The primary engine air filter part number found for the John Deere X394 is RE46310. |
|---|---|
| What air filter cross-references fit the John Deere X394? | Cross-reference filters found for the John Deere X394 include Donaldson P607365; Fleetguard AF25570. |
| Can I use an aftermarket air filter on the John Deere X394? | The John Deere X394 has 2 cross-reference filters listed, starting with Donaldson P607365. For aftermarket buying, compare brand part number, dimensions, seal shape and air-cleaner housing fit. |
| What size is the John Deere X394 air filter? | The air filter dimensions found for the John Deere X394 are Outer diameter: 9 in / 230 mm; Inner diameter: 5.8 in / 147 mm. Use these dimensions as a fit check, but treat the part number as the main match. |
| How many air filter elements are listed for the John Deere X394? | 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. |
| Why include engine specs on a John Deere X394 air filter page? | For the John Deere X394, the engine specs found are 22 hp, 44.3 cu in (0.73 L). This is useful context when comparing similar models, but not a substitute for checking the filter number RE46310. |
| Should I order the John Deere X394 air filter by size or part number? | The safest buying order for the John Deere X394 is OEM part number first, then cross-reference brand, then physical size. For this page, that means RE46310 first and Outer diameter: 9 in / 230 mm; Inner diameter: 5.8 in / 147 mm as a fit check. |
| What should I confirm before buying a John Deere X394 air filter? | For the John Deere X394, confirm RE46310, at least one listed cross-reference, and the dimensions value of Outer diameter: 9 in / 230 mm; Inner diameter: 5.8 in / 147 mm against the actual filter before ordering. |
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.

