The Case IH 9390 tractor primary air filter part number is 132151A1. The inner safety filter is A44804.
Case IH 9390 Air Filter Details
| Primary air filter part number | 132151A1 |
|---|---|
| Inner safety air filter part number | A44804 |
| Outer air filter part number | 381423R92 |
Air Filter Service Interval Guide
Air Filter Service Interval Guide
These are practical inspection/replacement guide ranges for the large ag tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Case IH 9390 Extra Air Filter Notes
| Engine model | Cummins 14.0L |
|---|---|
| Engine displacement | 14 L | 854.3 cu in |
| Engine horsepower | 425 hp | 316.9 kW |
| Primary filter note | For the Case IH 9390, the listed primary air filter part number is 132151A1. 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 381423R92. |
| Safety filter note | The listed inner safety air filter is A44804. 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 | This is a higher-airflow class, so restriction matters fast. If it is working in dust, inspect before the 500-hour planning mark instead of waiting for visible power loss. |
| 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 9390 Air Filter FAQs
What is the safest way to match a Case IH 9390 air filter?
Do not buy from the title alone. Match 132151A1 against the removed filter, then check gasket shape, end-cap depth and cover fit before starting the tractor.
What should I buy for a full Case IH 9390 air-filter service?
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 381423R92 when you meant the safety filter, or A44804 when you meant the outer filter.
Does engine power change how I service the Case IH 9390 air filter?
This is a higher-airflow class, so restriction matters fast. If it is working in dust, inspect before the 500-hour planning mark instead of waiting for visible power loss.
What part-number mistake should I avoid on a Case IH 9390?
When there are several part numbers, do not search them all in one cart and hope. Label each one as primary, outer or safety before buying.
Which Case IH 9390 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 not buy a Case IH 9390 air filter from model name alone?
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.
How useful is displacement for a Case IH 9390 air-filter match?
The displacement helps identify the engine family; horsepower tells you how hard it breathes under load. The element still has to match the canister.
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.
