Quick answer:
The John Deere SST18 tractor primary engine air filter part number found is AT33363. Filter dimensions found include Height: 10.5 in / 267 mm; Outer diameter: 6.5 in / 165 mm; Inner diameter: 3 in / 76 mm.
Primary air filterAT33363
Filter height10.5 in / 267 mm
Engine power18 hp
John Deere SST18 Air Filter Specs
| Primary air filter part number | AT33363 |
|---|---|
| Secondary / safety air filter | AT33364 |
| Air filter size | Height: 10.5 in / 267 mm; Outer diameter: 6.5 in / 165 mm; Inner diameter: 3 in / 76 mm |
| Filter height | 10.5 in / 267 mm |
| Outer diameter | 6.5 in / 165 mm |
| Inner diameter | 3 in / 76 mm |
| Number of air filter elements | 2 elements (primary, secondary) |
| Engine horsepower | 18 hp |
| Engine displacement | 34.8 cu in (0.57 L) |
John Deere SST18 Air Filter Charts
Air filter dimensions
Engine horsepower
Engine displacement
John Deere SST18 Air Filter FAQ
| What air filter does the John Deere SST18 use? | The primary engine air filter part number found for the John Deere SST18 is AT33363. |
|---|---|
| What size is the John Deere SST18 air filter? | The air filter dimensions found for the John Deere SST18 are Height: 10.5 in / 267 mm; 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 many air filter elements are listed for the John Deere SST18? | This page lists 2 elements (primary, secondary). That means the safety element should be treated separately from the outer primary air filter. |
| Why include engine specs on a John Deere SST18 air filter page? | For the John Deere SST18, the engine specs found are 18 hp, 34.8 cu in (0.57 L). This is useful context when comparing similar models, but not a substitute for checking the filter number AT33363. |
| Should I order the John Deere SST18 air filter by size or part number? | Buy by AT33363 first for the John Deere SST18. The dimensions value is useful for checking an aftermarket listing before ordering. |
| What should I confirm before buying a John Deere SST18 air filter? | For the John Deere SST18, confirm AT33363 against John Deere parts information and use the listed dimensions of Height: 10.5 in / 267 mm; Outer diameter: 6.5 in / 165 mm; Inner diameter: 3 in / 76 mm as a physical check. |
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 deere.com website before buying or fitting an air filter.

