Preheat Start SwitchPreheat Start Switch
For Thermo King Type Unit:
LND-II EEC                    
LND-II EEC met TK3'9'5 Engine 
RC-II & RC-III                
RMN-II SR                     
SB-II 50 TC                   
SB-III 50 MAX met se2'2 Engine
SB-III 50 TC2 met di2'2 Engine
SB-III Mt met D2'0'1          
SB-III S SR met se2'2 Engine  
SB-III S+ met se2'2 Engine    
SB-III SLE Max EEC met D'2'0'1
SB-III SR met D2'0'1          
SB-III SR MP IV Met D2'0'1    
SB-III SR MP+ met D2'0'1      
SB-III TG VI EEC met D2'0'1   
Sentry 1500 met C2'0'1        
Sentry 3000 met C2'0'1        
Sentry di                     
Sentry II MAX met se2'2 Engine
Sentry II MAX TC met D2'0'1   
Sentry MAX met di2'2 Engine   
SL-100                        
SL-200                        
SMX                           
SMX 50 TCI                    
SMX SR                        
SMX-II SR & TG VI             
Super NWD 5200                
Super-II 30 SR met 2.2 Engine 
Super-II H.TP©                
Super-II MAX met 2.2 Engine   
TK6000 30 met se2'2 Engine    
ThermoKing Part Description:
SWITCH - defrost
SWITCH - diesel/electric
SWITCH - preheat/start
SWITCH - preheat/start (w/o Cycle Sentry)
Thermo-King no. 44-7932 / 3A87296G32
Old numbers: 
41-2753/1200A50G32
Examples and applications or 
Names and unit codes: 
TK44-7932 / TK-447932 / TK.44.7932 / TK447932
TK41-2753 / TK-412753 / TK.41.2753 / TK412753
SBIIISLEMax SB III SLE SBIII-SLE SBIIIMax                                                                                                                   
SBII50TC / SB II 50 TC / SB-II-50-TC / SB250TC / SB 2 50 TC / SB-2-50-TC                                                                                    
Sentry3000 / Sentry-3000                                                                                                                                    
SB-3/SB3/SBIII MultiTemp/Multi-Temp                                                                                                                         
HH@Sentrydi                                                                                                                                                    
Hattink-ThermoPartsTK600030 / TK 6000 30                                                                                                                                       
SentryIIMAX / Sentry-II-MAX / Sentry2MAX / Sentry 2 MAX / Sentry-2-MAX                                                                                      
HattinkThermoPartsSuperII30SR / Super II 30 SR / Super-II-30-SR / Super230SR / Super 2 30 SR / Super-2-30-SR                                                                  
SentryMAX                                                                                                                                                   
SBIIISR/SB3SR/SB-3SR                                                                                                                                        
SL200 / SL 200                                                                                                                                              
LNDIIEEC / LND II EEC / LND-II-EEC / LND2EEC / LND 2 EEC / LND-2-EEC                                                                                        
SMX50TCI / SMX-50-TCI                                                                                                                                       
SL100 / SL 100                                                                                                                                              
SBIIIS+ / SB III S+ / SB-III-S+ / SB3S+ / SB 3 S+ / SB-3-S+                                                                                                 
RMNIISR / RMN II SR / RMN-II-SR / RMN2SR / RMN 2 SR / RMN-2-SR                                                                                              
SB3SRMPIV/SBIIISRMPIV                                                                                                                                       
SBIII50 / SB III 50 / SB-III-50 / SB350 / SB 3 50 / SB-3-50 
SMXIISR / SMX II SR / SMX-II-SR / SMX2SR / SMX 2 SR / SMX-2-SR / SMXIITGVI / SMX II TG VI / SMX-II-TG-VI / SMX2TGVI / SMX 2 TG VI / SMX-2-TG-VI             
                                                                                                                                                            
Sentry1500 / Sentry-1500                                                                                                                                    
SMXSR / SMX-SR                                                                                                                                              
SuperIIMAX / Super II MAX / Super-II-MAX / Super2MAX / Super 2 MAX / Super-2-MAX                                                                            
SB3TG/SB-3TG/SBIIITG                                                                                                                                        
SuperNWD5200 / Super NWD 5200                                                                                                                               
SentryIIMAXTC/Sentry2MAXTC                                                                                                                                  
SBIIISSR / SB III S SR / SB-III-S-SR / SB3SSR / SB 3 S SR / SB-3-S-SR                                                                                       
SMX                                                                                                                                                         
SBIIISRMP+/SB3SRMP+/SB-3SRMP+                                                                                                                               
SB3SR/SB-3SR/SBIIISR                                                                                                                                        
RCII / RC II / RC2 / RC 2 / RC-2 / RCIII / RC III / RC3 / RC 3 / RC-3                                                                                       
SBIII50TC2 / SB III 50 TC 2 / SB-III-50-TC-2 / SB350TC2 / SB 3 50 TC 2 / SB-3-50-TC-2