Compatibility tool

Part serial number fitment checker

Check a part number against a machine model and, when Deere publishes a structured serial range, test the serial number against that range.

Verified model fitment found

Verified model fitment found. No structured serial-number restriction is recorded for this fitment.

ConfigurationL3902 gear-drive service-filter reference
Fitment noteMessicks' L3902DT parts catalog and current component fitment references support TC820-93230 for this gear-drive model. Confirm exact tractor serial number before ordering.
This tool only confirms rules already stored from cited sources. A missing fitment or missing serial rule is not proof that a part is incompatible. Always verify the complete machine PIN and configuration before ordering.