The Massey Ferguson 420 tractor primary air filter part number is 7068311M91. The inner safety filter is 3703704M91.
Massey Ferguson 420 Air Filter Details
Primary air filter part number
7068311M91
Inner safety air filter part number
3703704M91
Outer air filter part number
7068069M1
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
300 hrs
Light use
600 hrs
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.
Massey Ferguson 420 Extra Air Filter Notes
Engine model
Power 4.4L
Engine displacement
4.4 L | 268.5 cu in
Engine horsepower
60 hp | 44.7 kW
Primary filter note
For the Massey Ferguson 420, 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 7068069M1.
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 sits in the utility range. The 300-hour guide is useful for planning, but dusty work should shorten the inspection cycle.
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 420 Air Filter FAQs
Why should I compare the old Massey Ferguson 420 filter before buying?
The safest match is not just the printed number. Use 7068311M91, then check whether the element seats fully without forcing the cover. The primary and inner numbers look similar at the end, so check the full number carefully before ordering.
Should I order one filter or a full Massey Ferguson 420 air-filter set?
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 3703704M91 when you meant the outer filter.
How do I avoid mixing up Massey Ferguson 420 outer and safety filters?
This looks like a multi-element setup. Keep the outer/primary service element and the inner safety element separate when ordering, because mixing up 7068069M1 and 3703704M91 is the easy mistake.
When does the Massey Ferguson 420 air filter become a performance problem?
This sits in the utility range. The 300-hour guide is useful for planning, but dusty work should shorten the inspection cycle.
Why does the full Massey Ferguson 420 air-filter number matter?
Multiple numbers are useful only if each one is tied to the correct element position. Wrong element in the right brand is still wrong.
When should the Massey Ferguson 420 safety element be replaced?
On a a primary, outer and inner safety element setup, the inner element is the last barrier. If you remove it casually in a dusty shed, you defeat the reason it exists.
Does the Massey Ferguson 420 engine setup affect air filter fitment?
This is a larger utility-displacement / utility type setup, so airflow is not just a trivia spec. A bad seal or restricted element can show up as smoke, heat or weak pull.
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.
