The John Deere 20A tractor primary engine air filter part number found is AT220822.
Primary air filterAT220822
Engine power21 hp
John Deere 20A Air Filter Specs
Primary air filter part number
AT220822
Secondary / safety air filter
AN403918
Pre-filter
M148207
Number of air filter elements
3 elements (primary, secondary, pre-filter)
Engine horsepower
21 hp
Engine displacement
61 cu in (1 L)
John Deere 20A Air Filter Charts
Engine horsepower
This model
21 hp
Average
35 hp
Low
18 hp
High
66 hp
Engine displacement
This model
61 cu in
Average
100 cu in
Low
50 cu in
High
180 cu in
John Deere 20A Air Filter FAQ
What air filter does the John Deere 20A use?
The primary engine air filter part number found for the John Deere 20A is AT220822.
How many air filter elements are listed for the John Deere 20A?
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 20A air filter page?
The engine data kept for the John Deere 20A is 21 hp, 61 cu in (1 L). Use it as supporting context only; the actual filter match is still driven by the air-cleaner housing and part number AT220822.
Should I order the John Deere 20A air filter by size or part number?
For the John Deere 20A, use AT220822 as the main buying number. Model names can share similar parts, so confirm the serial range or engine before ordering.
What should I confirm before buying a John Deere 20A air filter?
For the John Deere 20A, 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.
