The Case IH DX45 tractor primary air filter part number is PA2684FN. The inner safety filter is 0455F1.
Case IH DX45 Air Filter Details
| Primary air filter part number | PA2684FN |
|---|---|
| Inner safety air filter part number | 0455F1 |
| Outer air filter part number | 86401594 |
Air Filter Service Interval Guide
Air Filter Service Interval Guide
These are practical inspection/replacement guide ranges for the utility tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Case IH DX45 Extra Air Filter Notes
| Engine model | Shibaura 2.2L |
|---|---|
| Engine displacement | 2.2 L | 134.3 cu in |
| Engine horsepower | 45 hp | 33.6 kW |
| Primary filter note | For the Case IH DX45, the listed primary air filter part number is PA2684FN. 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 86401594. |
| Safety filter note | The listed inner safety air filter is 0455F1. 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 sits in the utility range. The 300-hour guide is useful for planning, but dusty work should shorten the inspection cycle. |
| 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 DX45 Air Filter FAQs
How should I verify the Case IH DX45 air filter before fitting it?
Treat PA2684FN as the hero value, not the whole truth. Serial range, engine swaps and different air-cleaner housings can beat a generic online listing.
Is the Case IH DX45 air filter a one-part or multi-part 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 86401594 when you meant the safety filter, or 0455F1 when you meant the outer filter.
Can a similar Case IH DX45 air-filter number still be wrong?
Multiple numbers are useful only if each one is tied to the correct element position. Wrong element in the right brand is still wrong.
Which Case IH DX45 air filter element should I service first?
This is not a one-number job. The outer and inner elements have different jobs, so compare both old parts before buying a kit.
Why does the Case IH DX45 horsepower class matter for filters?
This sits in the utility range. The 300-hour guide is useful for planning, but dusty work should shorten the inspection cycle.
Why combine Case IH DX45 displacement and horsepower when checking filters?
The displacement helps identify the engine family; horsepower tells you how hard it breathes under load. The element still has to match the canister.
Should the Case IH DX45 engine family be checked before ordering?
This is a mid-displacement / compact utility type setup, so airflow is not just a trivia spec. A bad seal or restricted element can show up as smoke, heat or weak pull.
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.
