The John Deere 3440 tractor primary engine air filter part number found is AT20728. Cross-reference filters include WIX 49010; NAPA 49010; Baldwin PA1667; Donaldson P181052; more listed below.
Primary air filterAT20728
Cross-referenceWIX 49010
Engine power102 hp
John Deere 3440 Air Filter Specs
Primary air filter part number
AT20728
Secondary / safety air filter
AN403919
Pre-filter
M96846
Cross-reference filters
WIX 49010; NAPA 49010; Baldwin PA1667; Donaldson P181052; FRAM CA10180
Number of air filter elements
3 elements (primary, secondary, pre-filter)
Engine horsepower
102 hp
Engine displacement
360 cu in (5.9 L)
John Deere 3440 Air Filter Charts
Engine horsepower
This model
102 hp
Average
35 hp
Low
18 hp
High
66 hp
Engine displacement
This model
360 cu in
Average
100 cu in
Low
50 cu in
High
180 cu in
John Deere 3440 Air Filter FAQ
What air filter does the John Deere 3440 use?
The primary engine air filter part number found for the John Deere 3440 is AT20728.
What air filter cross-references fit the John Deere 3440?
Cross-reference filters found for the John Deere 3440 include WIX 49010; NAPA 49010; Baldwin PA1667; Donaldson P181052; FRAM CA10180.
Can I use an aftermarket air filter on the John Deere 3440?
The John Deere 3440 has 5 cross-reference filters listed, starting with WIX 49010. Use them as aftermarket leads, not as a replacement for checking the original part number AT20728.
How many air filter elements are listed for the John Deere 3440?
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 3440 air filter page?
Engine specs found for the John Deere 3440 include 102 hp, 360 cu in (5.9 L). Those specs help identify the tractor class, but the air filter should still be matched by part number AT20728.
Should I order the John Deere 3440 air filter by size or part number?
For the John Deere 3440, use AT20728 as the main part number and treat the cross-reference list as aftermarket buying leads.
What should I confirm before buying a John Deere 3440 air filter?
For the John Deere 3440, confirm AT20728 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.
