The Cub Cadet RZT S42 mower primary engine air filter part number found is 751-15245. Cross-reference filters include WIX 46387; Baldwin PA2020; Donaldson P526801; FRAM CA10112; more listed below. Service guidance is to check the air filter every 100 hours.
Primary air filter751-15245
Cross-referenceWIX 46387
Engine power22 hp
Service intervalCheck every 100 hours
Cub Cadet RZT S42 Air Filter Specs
Primary air filter part number
751-15245
Cross-reference filters
WIX 46387; Baldwin PA2020; Donaldson P526801; FRAM CA10112; Stens 102-052
Replacement interval
Check every 100 hours
Number of air filter elements
1 element (primary)
Engine model
Kohler SV715
Engine horsepower
22 hp
Engine displacement
44.2 cu in (0.72 L)
Cub Cadet RZT S42 Air Filter Charts
Engine horsepower
This model
22 hp
Average
23 hp
Low
12 hp
High
40 hp
Engine displacement
This model
44.2 cu in
Average
48 cu in
Low
25 cu in
High
80 cu in
Air filter service interval
This model
100 hr
Average
50 hr
Low
25 hr
High
100 hr
Cub Cadet RZT S42 Air Filter FAQ
What air filter does the Cub Cadet RZT S42 use?
The primary engine air filter part number found for the Cub Cadet RZT S42 is 751-15245.
What air filter cross-references fit the Cub Cadet RZT S42?
Cross-reference filters found for the Cub Cadet RZT S42 include WIX 46387; Baldwin PA2020; Donaldson P526801; FRAM CA10112; Stens 102-052.
Can I use an aftermarket air filter on the Cub Cadet RZT S42?
The Cub Cadet RZT S42 has 5 cross-reference filters listed, starting with WIX 46387. Use them as aftermarket leads, not as a replacement for checking the original part number 751-15245.
How often should the Cub Cadet RZT S42 air filter be checked or replaced?
The service guidance found for the Cub Cadet RZT S42 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 RZT S42?
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 RZT S42 air filter page?
For the Cub Cadet RZT S42, the engine specs found are 22 hp, 44.2 cu in (0.72 L). This is useful context when comparing similar models, but not a substitute for checking the filter number 751-15245.
Should I order the Cub Cadet RZT S42 air filter by size or part number?
For the Cub Cadet RZT S42, use 751-15245 as the main part number and treat the cross-reference list as aftermarket buying leads.
What should I confirm before buying a Cub Cadet RZT S42 air filter?
For the Cub Cadet RZT S42, confirm 751-15245 against the parts manual, then use the cross-reference list only after the OEM number matches.
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.
