The Massey Ferguson 8740S tractor primary air filter part number is 7068311M91. The inner safety filter is 3703704M91.
Massey Ferguson 8740S Air Filter Details
Primary air filter part number
7068311M91
Inner safety air filter part number
3703704M91
Outer air filter part number
2127378K1
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.
Massey Ferguson 8740S Extra Air Filter Notes
Engine displacement
8.4 L | 512.6 cu in
Engine horsepower
400 hp | 298.3 kW
Primary filter note
For the Massey Ferguson 8740S, the listed primary air filter part number is 7068311M91. 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 2127378K1.
Safety filter note
The listed inner safety air filter is 3703704M91. 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.
Massey Ferguson 8740S Air Filter FAQs
What should I buy for a full Massey Ferguson 8740S 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 2127378K1 when you meant the safety filter, or 3703704M91 when you meant the outer filter.
How should I verify the Massey Ferguson 8740S air filter before fitting it?
The buying order should be: old filter number first, housing fit second, then cross-reference. Start with 7068311M91, but do not ignore the a primary, outer and inner safety element setup.
What order should I check the Massey Ferguson 8740S air-filter elements?
Use 2127378K1 to check the service element and 3703704M91 to check the safety element. Do not assume one substitutes for the other.
Why not stretch a dirty Massey Ferguson 8740S air filter under load?
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.
Can a similar Massey Ferguson 8740S air-filter number still be wrong?
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.
Should I replace the Massey Ferguson 8740S inner safety filter every time?
No. The inner safety element is backup protection, not the part to disturb every time. Leave it seated while the outer element is out so dust cannot fall into the intake.
How useful is displacement for a Massey Ferguson 8740S air-filter match?
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 masseyferguson.com website before ordering or installing an air filter.
