The New Holland Workmaster 37 tractor primary air filter part number is 86555826. The inner safety filter is 86526975.
New Holland Workmaster 37 Air Filter Details
Primary air filter part number
86555826
Inner safety air filter part number
86526975
Outer air filter part number
87037984
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
300 hrs
Light use
600 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 utility tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
New Holland Workmaster 37 Extra Air Filter Notes
Engine model
Shibaura N843T-F-27
Engine horsepower
37 hp | 27.6 kW
Primary filter note
For the New Holland Workmaster 37, the listed primary air filter part number is 86555826. 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 87037984.
Safety filter note
The listed inner safety air filter is 86526975. 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 37 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 300-hour guide.
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 Workmaster 37 Air Filter FAQs
Why compare New Holland Workmaster 37 horsepower with filter dimensions?
Comparing power and element size helps catch bad cross-references. A tiny replacement for a harder-working engine should make you suspicious before installing it.
How do I avoid buying the wrong New Holland Workmaster 37 air filter?
The buying order should be: old filter number first, housing fit second, then cross-reference. Start with 86555826, but do not ignore the a primary, outer and inner safety element setup. The size data points to a mid-size element, so compare the removed element against both length and outside diameter before fitting.
How do I avoid mixing up the New Holland Workmaster 37 air-filter elements?
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 87037984 when you meant the safety filter, or 86526975 when you meant the outer filter.
How should I use the New Holland Workmaster 37 filter dimensions?
Length, OD and ID together are better than one size alone. The trap is buying a filter that fits into the canister but does not seal correctly at the ends.
Why does the New Holland Workmaster 37 horsepower class matter for filters?
With a 37 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 300-hour guide.
What does the outer-filter listing mean for the New Holland Workmaster 37?
Multiple numbers usually means a staged air cleaner. Replace the loaded outer element first, then inspect the safety element without exposing the clean intake to dust.
How can part-number style help check a New Holland Workmaster 37 filter?
Multiple numbers are useful only if each one is tied to the correct element position. Wrong element in the right brand is still wrong.
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.
