Case IH STX430 Air Filter (82034439)

Quick answer:

The Case IH STX430 tractor primary air filter part number is 82034439. The inner safety filter is A44804.

Case IH STX430 Air Filter Details

Primary air filter part number 82034439
Inner safety air filter part number A44804
Outer air filter part number STX430
Air filter dimensions Outside diameter: 9.9 in | Height: 16.4 in

Air Filter Service Interval Guide

Air Filter Service Interval Guide

Dusty use

100 hrs

Average

500 hrs

Light use

1,000 hrs

Listed Filter Size Check

Height

16.4 in

Outside diameter

9.9 in

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 STX430 Extra Air Filter Notes

Engine horsepower 430 hp | 320.7 kW
Primary filter note For the Case IH STX430, the listed primary air filter part number is 82034439. 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 STX430.
Safety filter note The listed inner safety air filter is A44804. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked.
Fitment note Listed dimensions: Outside diameter: 9.9 in | Height: 16.4 in. Use dimensions as a second check, not as the only buying method.
Filter size note The listed dimensions point to a long element length at 16.4 in and large outside diameter at 9.9 in. Use that as a fitment sanity check against the old filter.
Power range note A dirty filter on this setup can show up as reduced pull, black smoke or higher temperature. That is more useful than staring at the hour meter.
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 STX430 Air Filter FAQs

Is airflow likely to be sensitive on the Case IH STX430?

If the tractor is under load, a marginal or dirty element will matter more than it does at idle. Use the size/power combo as a reason to inspect before heavy dusty jobs.

Should I order one filter or a full Case IH STX430 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 STX430 when you meant the safety filter, or A44804 when you meant the outer filter.

What is the safest way to match a Case IH STX430 air filter?

Treat 82034439 as the hero value, not the whole truth. Serial range, engine swaps and different air-cleaner housings can beat a generic online listing.

What do the Case IH STX430 air filter dimensions tell me?

The length-to-diameter shape points to a large and deep element. That helps catch obvious bad matches, but cover depth, seal compression and end-cap shape matter a lot.

Would I be strict with the Case IH STX430 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.

What is the biggest fitment trap with the Case IH STX430 air filter?

The trap is assuming a large and deep element is close enough because it looks right online. The seal face, end-cap depth and cover pressure have to match, otherwise dust can bypass the media.

What does the outer-filter listing mean for the Case IH STX430?

This looks like a multi-element setup. Keep the outer/primary service element and the inner safety element separate when ordering, because mixing up STX430 and A44804 is the easy mistake.

Official information note

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.