The John Deere 400 tractor primary engine air filter part number found is AT220822.
Primary air filterAT220822
Engine power20 hp
John Deere 400 Air Filter Specs
Primary air filter part number
AT220822
Secondary / safety air filter
AN403919
Pre-filter
M148207
Number of air filter elements
3 elements (primary, secondary, pre-filter)
Engine model
Kohler K-532
Engine horsepower
20 hp
Engine displacement
32.5 cu in (0.53 L)
John Deere 400 Air Filter Charts
Engine horsepower
This model
20 hp
Average
35 hp
Low
18 hp
High
66 hp
Engine displacement
This model
32.5 cu in
Average
100 cu in
Low
50 cu in
High
180 cu in
John Deere 400 Air Filter FAQ
What air filter does the John Deere 400 use?
The primary engine air filter part number found for the John Deere 400 is AT220822.
How many air filter elements are listed for the John Deere 400?
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 400 air filter page?
Engine specs found for the John Deere 400 include 20 hp, 32.5 cu in (0.53 L). Those specs help identify the tractor class, but the air filter should still be matched by part number AT220822.
Should I order the John Deere 400 air filter by size or part number?
Start with AT220822 when buying an air filter for the John Deere 400. Do not rely only on the model name if there were production changes.
What should I confirm before buying a John Deere 400 air filter?
For the John Deere 400, confirm AT220822 against the parts manual or official John Deere lookup because air-cleaner parts can change by serial range.
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.
