The Massey Ferguson 1020 tractor primary air filter part number is 1804507M91.
Massey Ferguson 1020 Air Filter Details
Primary air filter part number
1804507M91
Outer air filter part number
Same as primary air filter
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
250 hrs
Light use
500 hrs
These are practical inspection/replacement guide ranges for the compact tractor category. Dusty work can shorten the interval heavily, so use the restriction indicator and operator manual first.
Massey Ferguson 1020 Extra Air Filter Notes
Engine model
Toyosha CS-112
Engine horsepower
21 hp | 15.7 kW
Primary filter note
For the Massey Ferguson 1020, the listed primary air filter part number is 1804507M91. Match the number before buying because air cleaner setups can vary by engine, serial range and market.
Outer filter note
The outer air filter for the Massey Ferguson 1020 appears to be the same listed item as the primary filter.
Safety filter note
If your air cleaner has an inner safety element, leave it in place while servicing the outer filter so dirt cannot fall into the intake.
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
For a smaller tractor, the filter may not look dramatic, but dirt ingestion is still the killer. Dry mowing, loader work and chaff are bigger triggers than engine hours alone.
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 1020 Air Filter FAQs
Is the Massey Ferguson 1020 air filter a one-part or multi-part service?
With only a primary number listed, the smart move is to open the housing before ordering multiples. Some tractors have a hidden safety element that search snippets do not show clearly.
What should I check before ordering a Massey Ferguson 1020 air filter?
The buying order should be: old filter number first, housing fit second, then cross-reference. Start with 1804507M91, but do not ignore the only a clean primary filter number.
How do the Massey Ferguson 1020 outer and primary filters differ?
If a seller tries to sell a separate outer element for this listing, compare it to the primary number first. It may just be duplicate naming.
When does the Massey Ferguson 1020 air filter become a performance problem?
For a smaller tractor, the filter may not look dramatic, but dirt ingestion is still the killer. Dry mowing, loader work and chaff are bigger triggers than engine hours alone.
Can I ignore letters or suffixes in the Massey Ferguson 1020 filter number?
If a listing shows a shortened version of 1804507M91, be suspicious. Air filters are fitment parts, not close-enough parts.
How does engine data help with a Massey Ferguson 1020 air-filter check?
If the tractor has had an engine swap, ignore generic model-name fitment until you compare the housing and old element.
Can I clean the Massey Ferguson 1020 inner safety filter?
No inner number is cleanly listed here. That does not prove there is no safety filter; it only means the primary number is the reliable value from the scrape.
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.
