John Deere 940 Air Filter: Part Number, Size & Cross Reference

Quick answer:

The John Deere 940 tractor primary engine air filter part number found is AT220822. Cross-reference filters include WIX 49010; NAPA 49010; Baldwin PA2020; Donaldson P181052; more listed below.

Primary air filterAT220822
Cross-referenceWIX 49010
Engine power33 hp

John Deere 940 Air Filter Specs

Primary air filter part number AT220822
Secondary / safety air filter AN403919
Pre-filter M77555
Cross-reference filters WIX 49010; NAPA 49010; Baldwin PA2020; Donaldson P181052; FRAM CA10112; Stens 102-052
Number of air filter elements 3 elements (primary, secondary, pre-filter)
Engine horsepower 33 hp
Engine displacement 85.4 cu in (1.4 L)

John Deere 940 Air Filter Charts

Engine horsepower

This model

33 hp

Average

35 hp

Low

18 hp

High

66 hp

Engine displacement

This model

85.4 cu in

Average

100 cu in

Low

50 cu in

High

180 cu in

John Deere 940 Air Filter FAQ

What air filter does the John Deere 940 use? The primary engine air filter part number found for the John Deere 940 is AT220822.
What air filter cross-references fit the John Deere 940? Cross-reference filters found for the John Deere 940 include WIX 49010; NAPA 49010; Baldwin PA2020; Donaldson P181052; FRAM CA10112; Stens 102-052.
Can I use an aftermarket air filter on the John Deere 940? The John Deere 940 has 6 cross-reference filters listed, starting with WIX 49010. Use them as aftermarket leads, not as a replacement for checking the original part number AT220822.
How many air filter elements are listed for the John Deere 940? 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 940 air filter page? Engine specs found for the John Deere 940 include 33 hp, 85.4 cu in (1.4 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 940 air filter by size or part number? For the John Deere 940, use AT220822 as the main part number and treat the cross-reference list as aftermarket buying leads.
What should I confirm before buying a John Deere 940 air filter? For the John Deere 940, confirm AT220822 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.