The Case IH 1120 tractor primary air filter part number is 87311194. The inner safety filter is 195100A1.
Case IH 1120 Air Filter Details
Primary air filter part number
87311194
Inner safety air filter part number
195100A1
Outer air filter part number
381423R92
Air filter dimensions
Length: 10.2 in | Outside diameter: 5.8 in | Inside diameter: 2.2 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
Length
10.2 in
Outside diameter
5.8 in
Inside diameter
2.2 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 1120 Extra Air Filter Notes
Engine model
Mitsubishi 1.1L
Engine displacement
1.1 L | 67.1 cu in
Engine horsepower
19 hp | 14.2 kW
Primary filter note
For the Case IH 1120, the listed primary air filter part number is 87311194. 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 381423R92.
Safety filter note
The listed inner safety air filter is 195100A1. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked.
Fitment note
Listed dimensions: Length: 10.2 in | Outside diameter: 5.8 in | Inside diameter: 2.2 in. 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 10.2 in and normal outside diameter at 5.8 in. Use that as a fitment sanity check against the old filter.
Power range note
With a 19 hp engine class, the listed element size is generous for the power class, so fit/seal checks matter more than chasing a bigger filter. Watch for weak pull, smoke or heat under load before waiting for the full 250-hour guide.
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.
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 1120 Air Filter FAQs
Does the Case IH 1120 filter size look right for its horsepower?
The useful read is not the raw size by itself. Compared with the 19 hp engine class, the listed element size is generous for the power class, so fit/seal checks matter more than chasing a bigger filter. Use that to decide how cautious to be in dusty work.
Which Case IH 1120 air-filter parts should be changed together?
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 381423R92 when you meant the safety filter, or 195100A1 when you meant the outer filter.
What is the most reliable way to confirm a Case IH 1120 air filter?
Because this listing shows a primary, outer and inner safety element setup, the risk is ordering one correct number and one wrong companion element. Keep 87311194 as the main reference, then confirm the other elements separately.
What do the Case IH 1120 air filter dimensions tell me?
Because the element has listed length, OD and ID, measure the old filter the same way. Do not compare one seller’s overall height to another seller’s gasket-to-gasket length without checking the drawing.
What does the Case IH 1120 air-filter part-number pattern tell me?
The main number 87311194 should be treated as the control number. The other numbers need their own fitment checks, not blind substitution.
When does the Case IH 1120 air filter become a performance problem?
With a 19 hp engine class, the listed element size is generous for the power class, so fit/seal checks matter more than chasing a bigger filter. Watch for weak pull, smoke or heat under load before waiting for the full 250-hour guide.
What does the outer-filter listing mean for the Case IH 1120?
This looks like a multi-element setup. Keep the outer/primary service element and the inner safety element separate when ordering, because mixing up 381423R92 and 195100A1 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.
