The Case IH Farmall 90C tractor primary air filter part number is 47610231. The inner safety filter is A44804.
Case IH Farmall 90C Air Filter Details
Primary air filter part number
47610231
Inner safety air filter part number
A44804
Outer air filter part number
381423R92
Air filter dimensions
Length: 16.4 in | Outside diameter: 9.9 in | Inside diameter: 6 in
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
300 hrs
Light use
600 hrs
Listed Filter Size Check
Length
16.4 in
Outside diameter
9.9 in
Inside diameter
6 in
These are practical inspection/replacement guide ranges for the utility tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Case IH Farmall 90C Extra Air Filter Notes
Engine model
FPT 3.4L
Engine displacement
3.4 L | 207.5 cu in
Engine horsepower
86 hp | 64.1 kW
Primary filter note
For the Case IH Farmall 90C, the listed primary air filter part number is 47610231. Match the number before buying because air cleaner setups can vary by engine, serial range and market.
Outer filter note
The listed outer air filter part number is 381423R92.
Safety filter note
The listed inner safety air filter is A44804. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked.
Fitment note
Listed dimensions: Length: 16.4 in | Outside diameter: 9.9 in | Inside diameter: 6 in. Use dimensions as a second check, not as the only buying method.
Filter size note
The listed dimensions point to a long element length at 16.4 in and large outside diameter at 9.9 in. Use that as a fitment sanity check against the old filter.
Power range note
Airflow demand rises with load. If the filter is undersized, damaged or badly seated, the engine can lose pull before the element looks completely plugged.
Engine airflow note
The displacement helps identify the engine family; horsepower tells you how hard it breathes under load. The element still has to match the canister.
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 90C Air Filter FAQs
What should I buy for a full Case IH Farmall 90C air-filter service?
For a full parts check, separate the service element from the safety element: buy the outer/primary service element first, then buy the inner safety element only if it is dirty, damaged or due. Do not accidentally order 381423R92 when you meant the safety filter, or A44804 when you meant the outer filter.
Why should I compare the old Case IH Farmall 90C filter before buying?
Because this listing shows a primary, outer and inner safety element setup, the risk is ordering one correct number and one wrong companion element. Keep 47610231 as the main reference, then confirm the other elements separately.
Is airflow likely to be sensitive on the Case IH Farmall 90C?
If the tractor is under load, a marginal or dirty element will matter more than it does at idle. Use the size/power combo as a reason to inspect before heavy dusty jobs.
How should I use the Case IH Farmall 90C filter dimensions?
Because the element has listed length, OD and ID, measure the old filter the same way. Do not compare one seller’s overall height to another seller’s gasket-to-gasket length without checking the drawing.
What does the outer-filter listing mean for the Case IH Farmall 90C?
This is not a one-number job. The outer and inner elements have different jobs, so compare both old parts before buying a kit.
Why does the full Case IH Farmall 90C air-filter number matter?
When there are several part numbers, do not search them all in one cart and hope. Label each one as primary, outer or safety before buying.
What is the biggest fitment trap with the Case IH Farmall 90C air filter?
The trap is assuming a large and deep element is close enough because it looks right online. The seal face, end-cap depth and cover pressure have to match, otherwise dust can bypass the media.
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.
