John Deere 40R Air Filter: Part Number, Size & Cross Reference

Quick answer:

The John Deere 40R 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 power25.5 hp

John Deere 40R Air Filter Specs

Primary air filter part number AT75035
Secondary / safety air filter AN403918
Air filter size Inner diameter: 13 in / 330 mm
Inner diameter 13 in / 330 mm
Number of air filter elements 2 elements (primary, secondary)
Engine horsepower 25.5 hp
Engine displacement 91.5 cu in (1.5 L)

John Deere 40R Air Filter Charts

Air filter dimensions

Inner diameter

13 in

Engine horsepower

This model

25.5 hp

Average

35 hp

Low

18 hp

High

66 hp

Engine displacement

This model

91.5 cu in

Average

100 cu in

Low

50 cu in

High

180 cu in

John Deere 40R Air Filter FAQ

What air filter does the John Deere 40R use? The primary engine air filter part number found for the John Deere 40R is AT75035.
What size is the John Deere 40R air filter? The air filter dimensions found for the John Deere 40R 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 40R? This page lists 2 elements (primary, secondary). That means the safety element should be treated separately from the outer primary air filter.
Why include engine specs on a John Deere 40R air filter page? For the John Deere 40R, the engine specs found are 25.5 hp, 91.5 cu in (1.5 L). This is useful context when comparing similar models, but not a substitute for checking the filter number AT75035.
Should I order the John Deere 40R air filter by size or part number? For the John Deere 40R, 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 40R air filter? For the John Deere 40R, 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.