The New Holland T8.420 tractor primary air filter part number is 86512887. The inner safety filter is 86512887.
New Holland T8.420 Air Filter Details
Primary air filter part number
86512887
Inner safety air filter part number
86512887
Outer air filter part number
87408704
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
500 hrs
Light use
1,000 hrs
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.
New Holland T8.420 Extra Air Filter Notes
Engine model
FPT 8.7L
Engine displacement
8.7 L | 530.9 cu in
Engine horsepower
367 hp | 273.7 kW
Primary filter note
For the New Holland T8.420, the listed primary air filter part number is 86512887. 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 87408704.
Safety filter note
The listed inner safety air filter is 86512887. 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 is a higher-airflow class, so restriction matters fast. If it is working in dust, inspect before the 500-hour planning mark instead of waiting for visible power loss.
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.
New Holland T8.420 Air Filter FAQs
What makes the New Holland T8.420 air-filter number risky to order blindly?
Treat 86512887 as the hero value, not the whole truth. Serial range, engine swaps and different air-cleaner housings can beat a generic online listing.
What should I buy for a full New Holland T8.420 air-filter 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 87408704 when you meant the safety filter, or 86512887 when you meant the outer filter.
Why are there multiple air filter numbers for the New Holland T8.420?
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.
Why is the exact New Holland T8.420 filter number important?
The part-number pattern can help spot junk listings. If a seller’s number looks nothing like the catalog style, verify it against a real drawing.
What symptoms point to air restriction on a New Holland T8.420?
This is a higher-airflow class, so restriction matters fast. If it is working in dust, inspect before the 500-hour planning mark instead of waiting for visible power loss.
What does the New Holland T8.420 engine info tell me about the air filter?
Use the engine data as a warning system, not as the buying method. The listed setup points to a big-engine setup, but air-cleaner housings can still vary by serial range and market.
Can displacement catch wrong New Holland T8.420 filter listings?
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.
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 newholland.com website before ordering or installing an air filter.
