RISE: 8"
RUN: 16.75"
MOUNTING BOLT PATTERN: 6x23.5"

Part #903300906
28.13" tread with Motor and Switch Kit (#905316000)

Part #903309025
28.13" tread with Motor, Control Unit (#909510000) and Switch Kit (#905325000)

FOR VANS:
Part #903300900
28.13" tread with Motor and no Control Unit

FOR VANS:
Part #903309000
28.13" tread with Motor and Control Unit (#909510000)

FOR VANS:
Part #909315000
Plastic Splash Cover for 30 and 33 Series Steps