The Case IH Farmall 35 tractor primary air filter part number is 381423R92. The inner safety filter is AF1980.
Case IH Farmall 35 Air Filter Details
| Primary air filter part number | 381423R92 |
|---|---|
| Inner safety air filter part number | AF1980 |
| Outer air filter part number | Same as primary air filter |
| Air filter dimensions | Length: 10.4 in | Outside diameter: 2.4 in |
| Cross-reference part numbers | 86519867, 86549701 |
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Listed Filter Size Check
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 35 Extra Air Filter Notes
| Engine horsepower | 36.2 hp | 27 kW |
|---|---|
| Primary filter note | For the Case IH Farmall 35, 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 outer air filter for the Case IH Farmall 35 appears to be the same listed item as the primary filter. |
| Safety filter note | The listed inner safety air filter is AF1980. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked. |
| Fitment note | Listed dimensions: Length: 10.4 in | Outside diameter: 2.4 in. Use dimensions as a second check, not as the only buying method. |
| Filter size note | The listed dimensions point to a mid-size element length at 10.4 in and small outside diameter at 2.4 in. Use that as a fitment sanity check against the old filter. |
| Power range note | With a 36.2 hp engine class, the filter size looks reasonable for the power class, but dusty work can still load it quickly. Watch for weak pull, smoke or heat under load before waiting for the full 300-hour guide. |
| Cross-reference note | Possible cross-reference numbers found for the Case IH Farmall 35: 86519867, 86549701. 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 35 Air Filter FAQs
Does the Case IH Farmall 35 filter size look right for its horsepower?
The useful read is not the raw size by itself. Compared with the 36.2 hp engine class, the filter size looks reasonable for the power class, but dusty work can still load it quickly. Use that to decide how cautious to be in dusty work.
Is the Case IH Farmall 35 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.
Why should I compare the old Case IH Farmall 35 filter before buying?
If the old filter is missing, use 381423R92 plus the housing measurements as a two-step check. If either the seal or cover depth is wrong, do not run it.
How should I use the Case IH Farmall 35 filter dimensions?
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.
How do I sanity-check a Case IH Farmall 35 aftermarket air filter?
Cross-references are usually safe when the dimensions, end caps and seals match. They are not safe when the listing only says it fits your tractor without proof.
What does the outer-filter listing mean for the Case IH Farmall 35?
The outer listing matching the primary is actually useful: it tells you not to chase a second outer number unless the old housing says otherwise.
What is the biggest fitment trap with the Case IH Farmall 35 air filter?
The trap is assuming a long, narrow 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.
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.
