The Case IH Farmall 140A tractor primary air filter part number is AF25574. The inner safety filter is 187472A1.
Case IH Farmall 140A Air Filter Details
Primary air filter part number
AF25574
Inner safety air filter part number
187472A1
Outer air filter part number
Same as primary air filter
Air filter dimensions
Outside diameter: 95 mm | Inside diameter: 60 mm
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
400 hrs
Light use
800 hrs
Listed Filter Size Check
Outside diameter
3.7 in
Inside diameter
2.4 in
These are practical inspection/replacement guide ranges for the row-crop tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Case IH Farmall 140A Extra Air Filter Notes
Engine model
FPT 6.7L
Engine displacement
6.7 L | 408.9 cu in
Engine horsepower
140 hp
Primary filter note
For the Case IH Farmall 140A, the listed primary air filter part number is AF25574. Match the number before buying because air cleaner setups can vary by engine, serial range and market.
Outer filter note
The outer air filter for the Case IH Farmall 140A appears to be the same listed item as the primary filter.
Safety filter note
The listed inner safety air filter is 187472A1. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked.
Fitment note
Listed dimensions: Outside diameter: 95 mm | Inside diameter: 60 mm. Use dimensions as a second check, not as the only buying method.
Filter size note
The listed dimensions point to a small outside diameter at 3.7 in. Use that as a fitment sanity check against the old filter.
Power range note
At this power level, a dirty filter can show up as weaker pull, smoke or higher heat under load. Use job conditions and the restriction indicator ahead of a fixed schedule.
Engine airflow note
Engine size is useful context for service urgency, not a license to ignore the part number. The canister and seal decide fitment.
Service note
Clean loose dust from the air cleaner housing before pulling the filter. Never run the tractor with the filter removed, even for a quick test.
Case IH Farmall 140A Air Filter FAQs
Is the Case IH Farmall 140A air filter a one-part or multi-part service?
For normal service, the primary/outer element is the one that does the dirty work. The inner safety element is backup protection, so replace it less often and keep it seated while cleaning the housing.
How do I avoid buying the wrong Case IH Farmall 140A air filter?
Use AF25574 as the anchor number, then verify the old element and housing label. This is a letter-prefix part number, and the setup looks like a primary/outer service element plus an inner safety element, so one loose search result is not enough. Use the listed dimension as a sanity check, but still verify the seal and end-cap style.
Can I match a Case IH Farmall 140A air filter by size?
A single measurement can catch a wildly wrong filter, but it cannot prove the seal. You still need the end-cap and gasket style to match.
Should I buy separate outer and primary filters for a Case IH Farmall 140A?
Do not read the primary and outer rows as two separate filters here. They point to the same service element, with the safety element handled separately.
How can part-number style help check a Case IH Farmall 140A filter?
Part numbers are not keywords to approximate. One missing suffix can send you to a related filter that does not seal correctly.
What symptoms point to air restriction on a Case IH Farmall 140A?
At this power level, a dirty filter can show up as weaker pull, smoke or higher heat under load. Use job conditions and the restriction indicator ahead of a fixed schedule.
When should the Case IH Farmall 140A safety element be replaced?
On a a primary/outer service element plus an inner safety element, the inner element is the last barrier. If you remove it casually in a dusty shed, you defeat the reason it exists.
Official information note
Mistakes do happen. Air filter specs can change by year, engine, serial range, market and air cleaner housing. Check the old filter, operator manual, parts book and official caseih.com website before ordering or installing an air filter.
