The Case IH 275 tractor primary air filter part number is 381423R92. The inner safety filter is AF25710.
Case IH 275 Air Filter Details
Primary air filter part number
381423R92
Inner safety air filter part number
AF25710
Outer air filter part number
Same as primary air filter
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
250 hrs
Light use
500 hrs
These are practical inspection/replacement guide ranges for the compact tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Case IH 275 Extra Air Filter Notes
Engine model
Mitsubishi 1.5L
Engine displacement
1.5 L | 91.5 cu in
Engine horsepower
31 hp | 23.1 kW
Primary filter note
For the Case IH 275, 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 275 appears to be the same listed item as the primary filter.
Safety filter note
The listed inner safety air filter is AF25710. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked.
Fitment note
Check the old filter, air cleaner housing label and parts book before ordering if the tractor has had an engine or intake-housing change.
Power range note
For a smaller tractor, the filter may not look dramatic, but dirt ingestion is still the killer. Dry mowing, loader work and chaff are bigger triggers than engine hours alone.
Engine airflow note
Engine size is useful context for service urgency, not a license to ignore the part number. The canister and seal decide fitment.
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 275 Air Filter FAQs
What is the most reliable way to confirm a Case IH 275 air filter?
Because this listing shows a primary/outer service element plus an inner safety element, the risk is ordering one correct number and one wrong companion element. Keep 381423R92 as the main reference, then confirm the other elements separately.
What should I buy for a full Case IH 275 air-filter 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.
When does the Case IH 275 air filter become a performance problem?
For a smaller tractor, the filter may not look dramatic, but dirt ingestion is still the killer. Dry mowing, loader work and chaff are bigger triggers than engine hours alone.
What does the Case IH 275 air-filter part-number pattern tell me?
The primary number looks like a mixed letter-and-number part number. That does not make it automatically correct, but it helps you spot obvious nonsense numbers in search results.
What does the outer-filter listing mean for the Case IH 275?
If a seller tries to sell a separate outer element for this listing, compare it to the primary number first. It may just be duplicate naming.
Can the same Case IH 275 use different air filters?
The engine family, displacement and power class help explain why the filter matters, but they do not prove fit. The air-cleaner canister and old element are still the authority.
Why should the Case IH 275 safety filter stay seated?
No. The inner safety element is backup protection, not the part to disturb every time. Leave it seated while the outer element is out so dust cannot fall into the intake.
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.
