The Massey Ferguson 3670 tractor primary air filter part number is 7068311M91. The inner safety filter is 3703704M91.
Massey Ferguson 3670 Air Filter Details
Primary air filter part number
7068311M91
Inner safety air filter part number
3703704M91
Outer air filter part number
7068069M1
Air filter dimensions
Length: 12 in | Outside diameter: 11.5 in | Inside diameter: 7.5 in
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
400 hrs
Light use
800 hrs
Listed Filter Size Check
Length
12 in
Outside diameter
11.5 in
Inside diameter
7.5 in
These are practical inspection/replacement guide ranges for the row-crop tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Massey Ferguson 3670 Extra Air Filter Notes
Engine model
Valmet 620DS
Engine horsepower
154 hp | 114.8 kW
Primary filter note
For the Massey Ferguson 3670, 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
Listed dimensions: Length: 12 in | Outside diameter: 11.5 in | Inside diameter: 7.5 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 12 in and large outside diameter at 11.5 in. Use that as a fitment sanity check against the old filter.
Power range note
The horsepower and filter-size combo says this is not just a catalog lookup. If the tractor works in dust, restriction checks should happen earlier than the generic chart.
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 3670 Air Filter FAQs
What should I buy for a full Massey Ferguson 3670 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 7068069M1 when you meant the safety filter, or 3703704M91 when you meant the outer filter.
Is airflow likely to be sensitive on the Massey Ferguson 3670?
If the tractor is under load, a marginal or dirty element will matter more than it does at idle. Use the size/power combo as a reason to inspect before heavy dusty jobs.
What would make a Massey Ferguson 3670 air filter cross-listing suspicious?
Use 7068311M91 as the anchor number, then verify the old element and housing label. This is a Massey-style M-suffix number, and the setup looks like a primary, outer and inner safety element setup, so one loose search result is not enough. The size data points to a wide element, so compare the removed element against both length and outside diameter before fitting.
Which Massey Ferguson 3670 air-filter measurement matters most?
A wide element can still have different end caps across brands. Use size to narrow the search, then use the part number and seal style to make the decision.
How should I read the Massey Ferguson 3670 air-filter number?
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.
What is the biggest fitment trap with the Massey Ferguson 3670 air filter?
The trap is assuming a wide element is close enough because it looks right online. The seal face, end-cap depth and cover pressure have to match, otherwise dust can bypass the media.
What order should I check the Massey Ferguson 3670 air-filter elements?
The outer filter is the dirt-catcher; the inner filter is the backup. Service them with different expectations instead of replacing both out of habit.
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.
