The Cub Cadet FMZ 50 SD tractor primary engine air filter part number found is 737-05129. Cross-reference filters include WIX 49010; NAPA 49010; Baldwin PA2020. Filter dimensions found include Outer diameter: 6.5 in / 165 mm; Inner diameter: 3 in / 76 mm. Service guidance is to check the air filter every 100 hours.
Primary air filter737-05129
Cross-referenceWIX 49010
Filter sizeOuter diameter: 6.5 in / 165 mm
Engine power22 hp
Service intervalCheck every 100 hours
Cub Cadet FMZ 50 SD Air Filter Specs
Primary air filter part number
737-05129
Cross-reference filters
WIX 49010; NAPA 49010; Baldwin PA2020
Air filter size
Outer diameter: 6.5 in / 165 mm; Inner diameter: 3 in / 76 mm
Outer diameter
6.5 in / 165 mm
Inner diameter
3 in / 76 mm
Replacement interval
Check every 100 hours
Number of air filter elements
1 element (primary)
Engine horsepower
22 hp
Cub Cadet FMZ 50 SD Air Filter Charts
Air filter dimensions
Outer diameter
6.5 in
Inner diameter
3 in
Engine horsepower
This model
22 hp
Average
23 hp
Low
12 hp
High
40 hp
Air filter service interval
This model
100 hr
Average
50 hr
Low
25 hr
High
100 hr
Cub Cadet FMZ 50 SD Air Filter FAQ
What air filter does the Cub Cadet FMZ 50 SD use?
The primary engine air filter part number found for the Cub Cadet FMZ 50 SD is 737-05129.
What air filter cross-references fit the Cub Cadet FMZ 50 SD?
Cross-reference filters found for the Cub Cadet FMZ 50 SD include WIX 49010; NAPA 49010; Baldwin PA2020.
Can I use an aftermarket air filter on the Cub Cadet FMZ 50 SD?
The Cub Cadet FMZ 50 SD has 3 cross-reference filters listed, starting with WIX 49010. For aftermarket buying, compare brand part number, dimensions, seal shape and air-cleaner housing fit.
What size is the Cub Cadet FMZ 50 SD air filter?
The air filter dimensions found for the Cub Cadet FMZ 50 SD are Outer diameter: 6.5 in / 165 mm; Inner diameter: 3 in / 76 mm. Use these dimensions as a fit check, but treat the part number as the main match.
How often should the Cub Cadet FMZ 50 SD air filter be checked or replaced?
The service guidance found for the Cub Cadet FMZ 50 SD is to check the air filter every 100 hours. That is longer than the reference average of 50 hours for this class, so still shorten the interval when the machine is used in heavy dust.
How many air filter elements are listed for the Cub Cadet FMZ 50 SD?
This page confirms 1 element (primary). No separate safety or pre-filter part number was found for this model, so inspect the actual air-cleaner housing before assuming it uses only one piece.
Why include engine specs on a Cub Cadet FMZ 50 SD air filter page?
Engine specs found for the Cub Cadet FMZ 50 SD include 22 hp. Those specs help identify the tractor class, but the air filter should still be matched by part number 737-05129.
Should I order the Cub Cadet FMZ 50 SD air filter by size or part number?
Use 737-05129 as the main match for the Cub Cadet FMZ 50 SD. The cross-reference list helps find aftermarket options, while the measured dimensions helps avoid ordering a filter that does not seat correctly.
Official information note
Air filter fit can change by engine, serial number, production year and air-cleaner housing. Check the operator manual, parts manual and official cubcadet.com website before buying or fitting an air filter.
