The Case IH Farmall 80N tractor primary air filter part number is 84386403. The inner safety filter is A189348.
Case IH Farmall 80N Air Filter Details
Primary air filter part number
84386403
Inner safety air filter part number
A189348
Outer air filter part number
1265510C1
Air filter dimensions
Outside diameter: 9.9 in | Height: 16.4 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
Height
16.4 in
Outside diameter
9.9 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 80N Extra Air Filter Notes
Engine model
FPT 3.4L
Engine displacement
3.4 L | 207.5 cu in
Engine horsepower
74 hp | 55.2 kW
Primary filter note
For the Case IH Farmall 80N, the listed primary air filter part number is 84386403. 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 1265510C1.
Safety filter note
The listed inner safety air filter is A189348. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked.
Fitment note
Listed dimensions: Outside diameter: 9.9 in | Height: 16.4 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
With a 74 hp engine class, the listed element size is generous for the power class, so fit/seal checks matter more than chasing a bigger filter. Watch for weak pull, smoke or heat under load before waiting for the full 300-hour guide.
Engine airflow note
If a cross-reference is for a different displacement family, verify it hard before buying. Similar model names can hide different intake setups.
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 80N Air Filter FAQs
What makes the Case IH Farmall 80N air-filter number risky to order blindly?
Treat 84386403 as the hero value, not the whole truth. Serial range, engine swaps and different air-cleaner housings can beat a generic online listing.
Should I order one filter or a full Case IH Farmall 80N air-filter set?
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 1265510C1 when you meant the safety filter, or A189348 when you meant the outer filter.
Why compare Case IH Farmall 80N horsepower with filter dimensions?
Comparing power and element size helps catch bad cross-references. A tiny replacement for a harder-working engine should make you suspicious before installing it.
What do the Case IH Farmall 80N air filter dimensions tell me?
For this shape, do not eyeball it from a product photo. A close-looking element can be wrong if the seal sits at a different depth.
What is the biggest fitment trap with the Case IH Farmall 80N 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.
Why is the exact Case IH Farmall 80N filter number important?
The main number 84386403 should be treated as the control number. The other numbers need their own fitment checks, not blind substitution.
Why does the Case IH Farmall 80N horsepower class matter for filters?
With a 74 hp engine class, the listed element size is generous for the power class, so fit/seal checks matter more than chasing a bigger filter. Watch for weak pull, smoke or heat under load before waiting for the full 300-hour guide.
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.
