The Case IH Farmall DX25E tractor primary air filter part number is A171256. The inner safety filter is 381423R92.
Case IH Farmall DX25E Air Filter Details
Primary air filter part number
A171256
Inner safety air filter part number
381423R92
Outer air filter part number
SBA052100400
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
250 hrs
Light use
500 hrs
Listed Filter Size Check
Height
16.4 in
Outside diameter
9.9 in
These are practical inspection/replacement guide ranges for the compact tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Case IH Farmall DX25E Extra Air Filter Notes
Engine model
Shibaura 1.0L
Engine displacement
1 L | 61 cu in
Engine horsepower
25 hp | 18.6 kW
Primary filter note
For the Case IH Farmall DX25E, the listed primary air filter part number is A171256. 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 SBA052100400.
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
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
Use the power class to decide urgency. Higher airflow demand means less patience for questionable media, bad seals or packed pleats.
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 Farmall DX25E Air Filter FAQs
Is airflow likely to be sensitive on the Case IH Farmall DX25E?
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.
Is the Case IH Farmall DX25E 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 SBA052100400 when you meant the safety filter, or 381423R92 when you meant the outer filter.
What makes the Case IH Farmall DX25E air-filter number risky to order blindly?
If the old filter is missing, use A171256 plus the housing measurements as a two-step check. If either the seal or cover depth is wrong, do not run it.
What size mistake should I watch for on a Case IH Farmall DX25E air filter?
Use the size to catch cross-reference mistakes. The filter still needs the correct end-cap and gasket style, not just similar length and diameter.
Why is the exact Case IH Farmall DX25E filter number important?
The main number A171256 should be treated as the control number. The other numbers need their own fitment checks, not blind substitution.
Why are there multiple air filter numbers for the Case IH Farmall DX25E?
The presence of both outer and inner numbers means you should order carefully. A kit can be convenient, but only if it contains the correct service element and safety element.
What symptoms point to air restriction on a Case IH Farmall DX25E?
Use the power class to decide urgency. Higher airflow demand means less patience for questionable media, bad seals or packed pleats.
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.
