This is a Replacement Incline Motor Control Board Part Number 428528 for Various Nordic Track Models Listed Below.

NordicTrack-
NTL14122.0
NTL14122.2
NTL14122.3
NTL14122.12
NTL14122-INT.0
NTL14122-INT.3
NTL14123-INT.5
NTL14124.1
NTL14124.4
NTL14221.0
NTL14221.2 
NTL14221-INT.0
NTL17122.0
NTL17122.2
NTL17122.5
NTL17122.6
NTL17122.14
NTL17122.18
NTL17122.19
NTL17122-INT.0
NTL17122-INT.3
NTL17221.0
NTL17221.3
NTL17221-INT.0
NTL18123-INT.3
NTL19221.0
NTL19221-INT.0
NTL19221-INT.3
NTL22021.2
NTL22021.5
NTL29221.0
NTL29221.2
NTL29221.3
NTL29221.5
NTL29221.6
NTL29221.8
NTL29221.10
NTL29221.14
NTL29221-INT.0
NTL39221.0
NTL39221.3
NTL39221.4
NTL39221.5
NTL39221.6
NTL39221-INT.0