The Case IH Farmall 80CL tractor primary air filter part number is 84386403. The inner safety filter is 371266A1.
Case IH Farmall 80CL Air Filter Details
Primary air filter part number
84386403
Inner safety air filter part number
371266A1
Outer air filter part number
1265510C1
Air filter dimensions
Outside diameter: 9.9 in | Inside diameter: 6 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
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 80CL Extra Air Filter Notes
Engine model
FPT 3.4L
Engine displacement
3.4 L | 207.5 cu in
Engine horsepower
80 hp | 59.7 kW
Primary filter note
For the Case IH Farmall 80CL, 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 371266A1. 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 | Inside diameter: 6 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
A dirty filter on this setup can show up as reduced pull, black smoke or higher temperature. That is more useful than staring at the hour meter.
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 80CL Air Filter FAQs
Does the Case IH Farmall 80CL filter size look right for its horsepower?
The useful read is not the raw size by itself. Compared with the 80 hp engine class, the listed element size is generous for the power class, so fit/seal checks matter more than chasing a bigger filter. Use that to decide how cautious to be in dusty work.
How should I verify the Case IH Farmall 80CL air filter before fitting it?
Do not buy from the title alone. Match 84386403 against the removed filter, then check gasket shape, end-cap depth and cover fit before starting the tractor.
Should I order one filter or a full Case IH Farmall 80CL 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 371266A1 when you meant the outer filter.
Why can a similar-size filter still be wrong for a Case IH Farmall 80CL?
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.
Can a similar Case IH Farmall 80CL air-filter number still be wrong?
The primary number format is a straight numeric OEM-style number, while the page also has separate companion numbers. That is exactly where copy-paste ordering mistakes happen.
Which Case IH Farmall 80CL air filter element should I service first?
Multiple numbers usually means a staged air cleaner. Replace the loaded outer element first, then inspect the safety element without exposing the clean intake to dust.
Why does the Case IH Farmall 80CL horsepower class matter for filters?
A dirty filter on this setup can show up as reduced pull, black smoke or higher temperature. That is more useful than staring at the hour meter.
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.
