The John Deere 425 tractor primary engine air filter part number found is AT183661.
Primary air filterAT183661
Engine power23 hp
John Deere 425 Air Filter Specs
Primary air filter part number
AT183661
Secondary / safety air filter
AN403919
Pre-filter
M148207
Number of air filter elements
3 elements (primary, secondary, pre-filter)
Engine model
Briggs & Stratton
Engine horsepower
23 hp
Engine displacement
44.2 cu in (0.72 L)
John Deere 425 Air Filter Charts
Engine horsepower
This model
23 hp
Average
35 hp
Low
18 hp
High
66 hp
Engine displacement
This model
44.2 cu in
Average
100 cu in
Low
50 cu in
High
180 cu in
John Deere 425 Air Filter FAQ
What air filter does the John Deere 425 use?
The primary engine air filter part number found for the John Deere 425 is AT183661.
How many air filter elements are listed for the John Deere 425?
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 425 air filter page?
Engine specs found for the John Deere 425 include 23 hp, 44.2 cu in (0.72 L). Those specs help identify the tractor class, but the air filter should still be matched by part number AT183661.
Should I order the John Deere 425 air filter by size or part number?
For the John Deere 425, use AT183661 as the main buying number. Model names can share similar parts, so confirm the serial range or engine before ordering.
What should I confirm before buying a John Deere 425 air filter?
For the John Deere 425, confirm AT183661 against the parts manual or official John Deere lookup because air-cleaner parts can change by serial range.
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.
