The John Deere 20C tractor primary engine air filter part number found is AT332908. Filter dimensions found include Outer diameter: 7.69 in / 195 mm; Inner diameter: 4.61 in / 117 mm.
Primary air filterAT332908
Filter sizeOuter diameter: 7.69 in / 195 mm
Engine power18.5 hp
John Deere 20C Air Filter Specs
Primary air filter part number
AT332908
Secondary / safety air filter
AH212295
Pre-filter
M148207
Air filter size
Outer diameter: 7.69 in / 195 mm; Inner diameter: 4.61 in / 117 mm
Outer diameter
7.69 in / 195 mm
Inner diameter
4.61 in / 117 mm
Number of air filter elements
3 elements (primary, secondary, pre-filter)
Engine horsepower
18.5 hp
Engine displacement
54.9 cu in (0.9 L)
John Deere 20C Air Filter Charts
Air filter dimensions
Outer diameter
7.69 in
Inner diameter
4.61 in
Engine horsepower
This model
18.5 hp
Average
35 hp
Low
18 hp
High
66 hp
Engine displacement
This model
54.9 cu in
Average
100 cu in
Low
50 cu in
High
180 cu in
John Deere 20C Air Filter FAQ
What air filter does the John Deere 20C use?
The primary engine air filter part number found for the John Deere 20C is AT332908.
What size is the John Deere 20C air filter?
The air filter dimensions found for the John Deere 20C are Outer diameter: 7.69 in / 195 mm; Inner diameter: 4.61 in / 117 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 20C?
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 20C air filter page?
The engine data kept for the John Deere 20C is 18.5 hp, 54.9 cu in (0.9 L). Use it as supporting context only; the actual filter match is still driven by the air-cleaner housing and part number AT332908.
Should I order the John Deere 20C air filter by size or part number?
For the John Deere 20C, use AT332908 as the main buying number and use the dimensions value of Outer diameter: 7.69 in / 195 mm; Inner diameter: 4.61 in / 117 mm only as a secondary fit check.
What should I confirm before buying a John Deere 20C air filter?
For the John Deere 20C, confirm AT332908 against John Deere parts information and use the listed dimensions of Outer diameter: 7.69 in / 195 mm; Inner diameter: 4.61 in / 117 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.
