The Massey Ferguson 133 tractor primary air filter part number is 7068311M91. The inner safety filter is 7068311M91.
Massey Ferguson 133 Air Filter Details
Primary air filter part number
7068311M91
Inner safety air filter part number
7068311M91
Outer air filter part number
1032762M91
Air filter dimensions
Length: 9.2 in | Outside diameter: 4 in | Inside diameter: 2.5 in
Cross-reference part numbers
103276, 1032762M1, 1807255M1
Air Filter Service Interval Guide
Air Filter Service Interval Guide
Dusty use
100 hrs
Average
300 hrs
Light use
600 hrs
Listed Filter Size Check
Length
9.2 in
Outside diameter
4 in
Inside diameter
2.5 in
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 133 Extra Air Filter Notes
Engine model
Perkins AD3.144
Engine horsepower
37.5 hp | 28 kW
Primary filter note
For the Massey Ferguson 133, 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 1032762M91.
Safety filter note
The listed inner safety air filter is 7068311M91. Do not remove the safety element for normal cleaning; replace it if dirty, damaged or oil-soaked.
Fitment note
Listed dimensions: Length: 9.2 in | Outside diameter: 4 in | Inside diameter: 2.5 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 9.2 in and normal outside diameter at 4 in. Use that as a fitment sanity check against the old filter.
Power range note
Use the power class to decide urgency. Higher airflow demand means less patience for questionable media, bad seals or packed pleats.
Cross-reference note
Possible cross-reference numbers found for the Massey Ferguson 133: 103276, 1032762M1, 1807255M1. Treat these as secondary checks after the primary filter number.
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 133 Air Filter FAQs
What should I buy for a full Massey Ferguson 133 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 1032762M91 when you meant the safety filter, or 7068311M91 when you meant the outer filter.
What does the Massey Ferguson 133 horsepower and filter size combo tell me?
Horsepower tells you airflow demand; length and outside diameter tell you rough element size. Together they say whether restriction is a service concern or mostly a fitment check.
What should I check before ordering a Massey Ferguson 133 air filter?
Treat 7068311M91 as the hero value, not the whole truth. Serial range, engine swaps and different air-cleaner housings can beat a generic online listing.
Should I trust Massey Ferguson 133 air-filter dimensions or the part number?
The dimensions are useful only as a fitment screen. The final test is whether the element seats square, the cover closes normally and the seal lands where the old one did.
What order should I check the Massey Ferguson 133 air-filter elements?
Use 1032762M91 to check the service element and 7068311M91 to check the safety element. Do not assume one substitutes for the other.
Can I ignore letters or suffixes in the Massey Ferguson 133 filter number?
The main number 7068311M91 should be treated as the control number. The other numbers need their own fitment checks, not blind substitution.
Can I use aftermarket cross-reference filters on a Massey Ferguson 133?
With multiple cross-refs, the safest move is to pick the one that agrees with the OEM number and the physical element. Do not let a marketplace compatibility table overrule the old filter.
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.
