The Case IH CX80 tractor primary air filter part number is 84386403. The inner safety filter is A189348.
Case IH CX80 Air Filter Details
| Primary air filter part number | 84386403 |
|---|---|
| Inner safety air filter part number | A189348 |
| Outer air filter part number | 1265510C1 |
| Air filter dimensions | Length: 181 mm | Outside diameter: 124 mm |
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Listed Filter Size Check
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 CX80 Extra Air Filter Notes
| Engine model | Perkins 4.0L |
|---|---|
| Engine displacement | 4 L | 244.1 cu in |
| Engine horsepower | 84 hp | 62.6 kW |
| Primary filter note | For the Case IH CX80, the listed primary air filter part number is 84386403. 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 1265510C1. |
| Safety filter note | The listed inner safety air filter is A189348. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked. |
| Fitment note | Listed dimensions: Length: 181 mm | Outside diameter: 124 mm. Use dimensions as a second check, not as the only buying method. |
| Filter size note | The listed dimensions point to a mid-size element length at 7.1 in and normal outside diameter at 4.9 in. Use that as a fitment sanity check against the old filter. |
| Power range note | With a 84 hp engine class, the horsepower is high compared with the listed element size, so restriction checks matter more. Watch for weak pull, smoke or heat under load before waiting for the full 300-hour guide. |
| 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 CX80 Air Filter FAQs
What does the Case IH CX80 horsepower and filter size combo tell me?
Horsepower tells you airflow demand; length and outside diameter tell you rough element size. Together they say whether restriction is a service concern or mostly a fitment check.
What should I check before ordering a Case IH CX80 air filter?
If the old filter is missing, use 84386403 plus the housing measurements as a two-step check. If either the seal or cover depth is wrong, do not run it.
Is the Case IH CX80 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 1265510C1 when you meant the safety filter, or A189348 when you meant the outer filter.
Are the Case IH CX80 air filter dimensions enough to buy from?
A mid-size element should be compared against the removed element before fitting. The danger is a filter that fits loosely enough to bypass dust.
Would I be strict with the Case IH CX80 air filter condition?
Yes. The power-to-filter-size relationship makes restriction and seal condition worth taking seriously. Replace a questionable element before heavy dusty work.
Can I ignore letters or suffixes in the Case IH CX80 filter number?
Multiple numbers are useful only if each one is tied to the correct element position. Wrong element in the right brand is still wrong.
Does engine power change how I service the Case IH CX80 air filter?
With a 84 hp engine class, the horsepower is high compared with the listed element size, so restriction checks matter more. Watch for weak pull, smoke or heat under load before waiting for the full 300-hour guide.
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.

