The Case IH Farmall 115C tractor primary air filter part number is 381423R92. The inner safety filter is 87420200.
Case IH Farmall 115C Air Filter Details
Primary air filter part number
381423R92
Inner safety air filter part number
87420200
Outer air filter part number
1265510C1
Air filter dimensions
Outside diameter: 9.9 in | Inside diameter: 6 in | Height: 16.4 in
Cross-reference part numbers
12655
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
Height
16.4 in
Outside diameter
9.9 in
Inside diameter
6 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 115C Extra Air Filter Notes
Engine displacement
3.4 L | 207.5 cu in
Engine horsepower
115 hp | 85.8 kW
Primary filter note
For the Case IH Farmall 115C, the listed primary air filter part number is 381423R92. 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 87420200. 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
With a 115 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 400-hour guide.
Engine airflow note
Displacement and horsepower together explain airflow demand better than either one alone, but the air-cleaner housing still proves fit.
Cross-reference note
Possible cross-reference numbers found for the Case IH Farmall 115C: 12655. Treat these as secondary checks after the primary filter number.
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 115C Air Filter FAQs
Should I order one filter or a full Case IH Farmall 115C 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 87420200 when you meant the outer filter.
Can the Case IH Farmall 115C air filter become a restriction under load?
The combo is a practical warning system. If the element is packed, damaged or not sealing, the engine can lose airflow long before the filter looks catastrophic.
What is the most reliable way to confirm a Case IH Farmall 115C air filter?
The buying order should be: old filter number first, housing fit second, then cross-reference. Start with 381423R92, but do not ignore the a primary, outer and inner safety element setup. The size data points to a large and deep element, so compare the removed element against both length and outside diameter before fitting.
Are the Case IH Farmall 115C air filter dimensions enough to buy from?
Length, OD and ID together are better than one size alone. The trap is buying a filter that fits into the canister but does not seal correctly at the ends.
How should I use Case IH Farmall 115C air filter cross-reference numbers?
A single cross-reference can help when 381423R92 is unavailable, but it should not override the old filter, seal shape or housing label. Then compare length, outside diameter and seal style before fitting.
Why does the Case IH Farmall 115C horsepower class matter for filters?
With a 115 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 400-hour guide.
How do I avoid mixing up Case IH Farmall 115C outer and safety filters?
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.
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.
