The John Deere 4066M tractor primary engine air filter part number found is AT311066. Filter dimensions found include Height: 20.5 in / 521 mm; Outer diameter: 12.06 in / 306 mm; Inner diameter: 7.75 in / 197 mm.
Primary air filterAT311066
Filter height20.5 in / 521 mm
Engine power66 hp
John Deere 4066M Air Filter Specs
Primary air filter part number
AT311066
Secondary / safety air filter
AN403919
Pre-filter
MIU10955
Air filter size
Height: 20.5 in / 521 mm; Outer diameter: 12.06 in / 306 mm; Inner diameter: 7.75 in / 197 mm
Filter height
20.5 in / 521 mm
Outer diameter
12.06 in / 306 mm
Inner diameter
7.75 in / 197 mm
Number of air filter elements
3 elements (primary, secondary, pre-filter)
Engine horsepower
66 hp
Engine displacement
189.2 cu in (3.1 L)
John Deere 4066M Air Filter Charts
Air filter dimensions
Height
20.5 in
Outer diameter
12.06 in
Inner diameter
7.75 in
Engine horsepower
This model
66 hp
Average
35 hp
Low
18 hp
High
66 hp
Engine displacement
This model
189.2 cu in
Average
100 cu in
Low
50 cu in
High
180 cu in
John Deere 4066M Air Filter FAQ
What air filter does the John Deere 4066M use?
The primary engine air filter part number found for the John Deere 4066M is AT311066.
What size is the John Deere 4066M air filter?
The air filter dimensions found for the John Deere 4066M are Height: 20.5 in / 521 mm; Outer diameter: 12.06 in / 306 mm; Inner diameter: 7.75 in / 197 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 4066M?
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 4066M air filter page?
Engine specs found for the John Deere 4066M include 66 hp, 189.2 cu in (3.1 L). Those specs help identify the tractor class, but the air filter should still be matched by part number AT311066.
Should I order the John Deere 4066M air filter by size or part number?
Buy by AT311066 first for the John Deere 4066M. The dimensions value is useful for checking an aftermarket listing before ordering.
What should I confirm before buying a John Deere 4066M air filter?
For the John Deere 4066M, confirm AT311066 against John Deere parts information and use the listed dimensions of Height: 20.5 in / 521 mm; Outer diameter: 12.06 in / 306 mm; Inner diameter: 7.75 in / 197 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.
