The Case IH MX285 tractor primary air filter part number is R29295. The inner safety filter is 87440031.
Case IH MX285 Air Filter Details
| Primary air filter part number | R29295 |
|---|---|
| Inner safety air filter part number | 87440031 |
| Outer air filter part number | 932391C2 |
| Cross-reference part numbers | MX285 |
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 MX285 Extra Air Filter Notes
| Engine displacement | 8.3 L | 506.5 cu in |
|---|---|
| Engine horsepower | 287 hp | 214 kW |
| Primary filter note | For the Case IH MX285, the listed primary air filter part number is R29295. 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 87440031. 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. |
| Cross-reference note | Possible cross-reference numbers found for the Case IH MX285: MX285. 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 MX285 Air Filter FAQs
Should I order one filter or a full Case IH MX285 air-filter set?
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 87440031 when you meant the outer filter.
What is the most reliable way to confirm a Case IH MX285 air filter?
The buying order should be: old filter number first, housing fit second, then cross-reference. Start with R29295, but do not ignore the a primary, outer and inner safety element setup.
Can a cross-reference filter fit badly on a Case IH MX285?
A single cross-reference can help when R29295 is unavailable, but it should not override the old filter, seal shape or housing label.
Is the Case IH MX285 outer filter the same as the primary filter?
The outer filter is the dirt-catcher; the inner filter is the backup. Service them with different expectations instead of replacing both out of habit.
What does the Case IH MX285 air-filter part-number pattern tell me?
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 not stretch a dirty Case IH MX285 air filter under load?
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 mistake ruins the point of the Case IH MX285 safety filter?
Do not treat the safety filter like a second primary filter. It should stay protected; once it is dirty, replace it instead of trying to revive it with air pressure.
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.

