The Case IH Steiger 420 tractor primary air filter part number is 1265510C1. The inner safety filter is A171255.
Case IH Steiger 420 Air Filter Details
| Primary air filter part number | 1265510C1 |
|---|---|
| Inner safety air filter part number | A171255 |
| Outer air filter part number | 932391C2 |
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 Steiger 420 Extra Air Filter Notes
| Engine model | FPT 12.9L |
|---|---|
| Engine displacement | 12.9 L | 787.2 cu in |
| Engine horsepower | 420 hp | 313 kW |
| Primary filter note | For the Case IH Steiger 420, the listed primary air filter part number is 1265510C1. 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 932391C2. |
| Safety filter note | The listed inner safety air filter is A171255. 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 | A similar horsepower rating does not guarantee the same filter if displacement or engine family changes. Use the engine data as a sanity check only. |
| 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 Steiger 420 Air Filter FAQs
How do I avoid buying the wrong Case IH Steiger 420 air filter?
Because this listing shows a primary, outer and inner safety element setup, the risk is ordering one correct number and one wrong companion element. Keep 1265510C1 as the main reference, then confirm the other elements separately.
What should I buy for a full Case IH Steiger 420 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 932391C2 when you meant the safety filter, or A171255 when you meant the outer filter.
How can part-number style help check a Case IH Steiger 420 filter?
The part-number pattern can help spot junk listings. If a seller’s number looks nothing like the catalog style, verify it against a real drawing.
What order should I check the Case IH Steiger 420 air-filter elements?
The presence of both outer and inner numbers means you should order carefully. A kit can be convenient, but only if it contains the correct service element and safety element.
Why does airflow matter on the Case IH Steiger 420 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.
Should I blow out the Case IH Steiger 420 inner safety element?
The inner element is there for the mistake moment: a torn outer filter, bad seal or dusty service. Keep it clean and seated while working around 1265510C1.
Can a Case IH Steiger 420 engine swap change the air filter?
Use the engine details to catch suspicious listings. If a seller’s filter is for a totally different engine family or canister style, do not trust the cross-reference blindly.
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.
