Honda FourTrax Rancher TRX420TE1 2020 Owner's Manual page 120

Maintenance Component
Locations
rear brake light
switch
rear brake pedal
front final gear oil fill cap (Except TRX420TE1)
front final gear oil drain bolt (Except TRX420TE1)
110
Servicing Your Honda
air cleaner
air cleaner housing
drain tube
engine oil filter
front suspension spring
pre-load adjuster
front brake
caliper