The Case IH 7140 tractor primary air filter part number is AF4756. The inner safety filter is 381423R92.
Case IH 7140 Air Filter Details
| Primary air filter part number | AF4756 |
|---|---|
| Inner safety air filter part number | 381423R92 |
| Outer air filter part number | A77704 |
Air Filter Service Interval Guide
Air Filter Service Interval Guide
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 7140 Extra Air Filter Notes
| Engine model | Cummins 8.3L |
|---|---|
| Engine displacement | 8.3 L | 506.5 cu in |
| Engine horsepower | 197.5 hp | 147.3 kW |
| Primary filter note | For the Case IH 7140, the listed primary air filter part number is AF4756. 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 A77704. |
| Safety filter note | The listed inner safety air filter is 381423R92. 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 400-hour planning mark instead of waiting for visible power loss. |
| 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 7140 Air Filter FAQs
What makes the Case IH 7140 air-filter number risky to order blindly?
The safest match is not just the printed number. Use AF4756, then check whether the element seats fully without forcing the cover.
Which Case IH 7140 air-filter parts should be changed together?
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 A77704 when you meant the safety filter, or 381423R92 when you meant the outer filter.
Why is the exact Case IH 7140 filter number important?
Multiple numbers are useful only if each one is tied to the correct element position. Wrong element in the right brand is still wrong.
Why does airflow matter on the Case IH 7140 air filter?
This is a higher-airflow class, so restriction matters fast. If it is working in dust, inspect before the 400-hour planning mark instead of waiting for visible power loss.
Is the Case IH 7140 outer filter the same as the primary filter?
Use A77704 to check the service element and 381423R92 to check the safety element. Do not assume one substitutes for the other.
Is the Case IH 7140 inner filter a normal service part?
On a a primary, outer and inner safety element setup, the inner element is the last barrier. If you remove it casually in a dusty shed, you defeat the reason it exists.
Can similar engines use different Case IH 7140 air filters?
Engine size is useful context for service urgency, not a license to ignore the part number. The canister and seal decide fitment.
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.
