The Massey Ferguson 9S.400 tractor primary air filter part number is 1887574M91. The inner safety filter is 1678294M1.
Massey Ferguson 9S.400 Air Filter Details
Primary air filter part number
1887574M91
Inner safety air filter part number
1678294M1
Outer air filter part number
7068069M1
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 9S.400 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 9S.400, the listed primary air filter part number is 1887574M91. 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 7068069M1.
Safety filter note
The listed inner safety air filter is 1678294M1. 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
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.
Massey Ferguson 9S.400 Air Filter FAQs
What is the most reliable way to confirm a Massey Ferguson 9S.400 air filter?
The buying order should be: old filter number first, housing fit second, then cross-reference. Start with 1887574M91, but do not ignore the a primary, outer and inner safety element setup.
How do I avoid mixing up the Massey Ferguson 9S.400 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 7068069M1 when you meant the safety filter, or 1678294M1 when you meant the outer filter.
Does engine power change how I service the Massey Ferguson 9S.400 air filter?
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 Massey Ferguson 9S.400 air-filter part-number pattern tell me?
When there are several part numbers, do not search them all in one cart and hope. Label each one as primary, outer or safety before buying.
Which Massey Ferguson 9S.400 air filter element should I service first?
This is not a one-number job. The outer and inner elements have different jobs, so compare both old parts before buying a kit.
Can the same Massey Ferguson 9S.400 use different air filters?
The engine info narrows the search, but serial range and market version can still change the air-cleaner setup.
Should I replace the Massey Ferguson 9S.400 inner safety filter every time?
Do not treat the safety filter like a second primary filter. It should stay protected; once it is dirty, replace it instead of trying to revive it with air pressure.
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.
