The John Deere 40A tractor primary engine air filter part number found is AT75035. Filter dimensions found include Inner diameter: 13 in / 330 mm.
Primary air filterAT75035
Filter sizeInner diameter: 13 in / 330 mm
Engine power12.5 hp
John Deere 40A Air Filter Specs
Primary air filter part number
AT75035
Secondary / safety air filter
AN403918
Pre-filter
AM125424
Air filter size
Inner diameter: 13 in / 330 mm
Inner diameter
13 in / 330 mm
Number of air filter elements
3 elements (primary, secondary, pre-filter)
Engine horsepower
12.5 hp
Engine displacement
30.5 cu in (0.5 L)
John Deere 40A Air Filter Charts
Air filter dimensions
Inner diameter
13 in
Engine horsepower
This model
12.5 hp
Average
35 hp
Low
18 hp
High
66 hp
Engine displacement
This model
30.5 cu in
Average
100 cu in
Low
50 cu in
High
180 cu in
John Deere 40A Air Filter FAQ
What air filter does the John Deere 40A use?
The primary engine air filter part number found for the John Deere 40A is AT75035.
What size is the John Deere 40A air filter?
The air filter dimensions found for the John Deere 40A are Inner diameter: 13 in / 330 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 40A?
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 40A air filter page?
The engine data kept for the John Deere 40A is 12.5 hp, 30.5 cu in (0.5 L). Use it as supporting context only; the actual filter match is still driven by the air-cleaner housing and part number AT75035.
Should I order the John Deere 40A air filter by size or part number?
For the John Deere 40A, use AT75035 as the main buying number and use the dimensions value of Inner diameter: 13 in / 330 mm only as a secondary fit check.
What should I confirm before buying a John Deere 40A air filter?
For the John Deere 40A, confirm AT75035 against John Deere parts information and use the listed dimensions of Inner diameter: 13 in / 330 mm as a physical check.
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.
