This is an Original Thermo King part for type Unit:
AMD-M1                        
AMD-M2                        
AMD-M2 met TK3'9'5 Engine     
AP-II W 1012                  
AP-II X 1012                  
BKD MAX met TK3'7'4 Engine    
CD MAX & CD MAX EEC           
CD-II MAX & CD-II MAX EEC     
Coach RT 1012                 
Fresh King met TK2'4'9        
HK-III HO met TK2'4'9         
HK-III zonder 380V met TK2'4'9
HRT-1012                      
HRT-I W 1012 COBUS 3000       
JD-II met TK2'4'9 Engine      
KD-II
KD-II MAX met TK3'6'6 Engine
KD-II SR met TK3'7'4
King of the Road              
LND-II EEC                    
LND-II EEC met TK3'9'5 Engine 
MD-100 met TK3'7'0
MD-100 met TK3'7'4
MD-200 met TK3'7'0
MD-200 met TK3'7'4
MD-200 MT                     
MD-300 met TK3'7'0
MD-300 met TK3'7'4
MD-II & MD-II MAX             
MD-II MAX met TK3'7'4 Engine  
MD-II TCI
MD-II TCI met TK3'7'4         
MD-II TCI-Z                   
MD-II TLE met TK3'7'4 Engine  
MD-MT                         
RDB-II                        
RD-II 50 TCI-Z                
RD-II MAX met TK3'8'8
RD-II MAX met TK3'9'5
RD-II met TK3'8'8
RD-II met TK3'9'5
RD-II TCI met TK3'9'5 Engine  
RD-II TCI-Z EEC met TK3'9'5   
RD-II TLE                     
RD-MT                         
SB-110 30                     
SB-210
SB-400 30
SB-III Magnum Whisper         
SB-III Whisper 25K            
SB-III Whisper Performance    
SDZ 30 & 50 EEC               
SGCO 2000                     
SGSM 2000                     
SL TCI                        
SL-100                        
SL-100e                       
SL-200                        
SL-200e                       
SL-300
SL-400                        
SL-400e                       
SL-400e SR2                   
SPECTRUM DE 2 & 3             
SPECTRUM SL Multi-Temp        
SPECTRUM TS met TK3'7'6       
SPECTRUM TS-500 met TK3'7'6   
Super TD-II met TK3'9'5 Engine
Super-II 30 190Y              
T-1000
T-1000 Spectrum
T-1000M
T-1000R
T-1200R
T-1200R Spectrum
T-570R
T-600
T-600M
T-600R
T-800
T-800M
T-800R
T-800R Spectrum
TCI EEC met TK3'7'4           
TCI-Z EEC met TK3'7'4         
TD-II
TD-II MAX             
TD-II MAX met TK3'9'5
TD-II met TK3'9'5
TK486 Engine                  
TK486E Engine                 
TS-200 met TK3'7'0
TS-200 met TK3'7'4
TS-300 met TK3'7'0
TS-300 met TK3'7'4
TS-500 EMEIA met TK3'7'6
TS-500 met TK3'7'6
TS-500 met TK3'9'5
TS-600 EEC met TK3'95         
TS-600 EMEIA met TK3'7'6
TS-H-TP©                      
URD-III 25DG                  
URD-III 25DG met 3'9'5 Engine 
URD-III 50 MAX TCIA           
URD-III 50 TCIA               
UT-1200
UT-1200X met TK3'7'6
UT-800
UTS                           
ThermoKing Part Description:
NUT
NUT - lever
NUT - support
NUT (M8)
SCREW
Thermo-King no. 55-5810
Old numbers: 
55-6277/
Description on packing: 
55-5810
Nut
Made in Japan
Examples and applications or 
Names and unit codes: 
TK55-5810 / TK-555810 / TK.55.5810 / TK555810 / TK55-5810TKA / TK-555810TKA / TK.55.5810TKA / TK555810TKA
TK55-6277 / TK-556277 / TK.55.6277 / TK556277 / TK55-6277TKA / TK-556277TKA / TK.55.6277TKA / TK556277TKA
T_1000
RDII50TCIZ / RD II 50 TCI Z / RD-II-50-TCI-Z / RD250TCIZ / RD 2 50 TCI Z / RD-2-50-TCI-Z                                                                    
@HTPRDIITCI / RD II TCI / RD-II-TCI / RD2TCI / RD 2 TCI / RD-2-TCI                                                                                              
TS 300
AMDM1/AMD M1                                                                                                                                                
TK486Engine                                                                                                                                                 
TS_200
T600R
BKDMAX                                                                                                                                                      
SL200e / SL 200e                                                                                                                                            
HattinkTS-500
TS/200
SGSM2000 / SGSM-2000                                                                                                                                        
UT_1200X
TS500EMEIA
CDMAX / CDMAXEEC                                                                                                                                            
UT/800
SBIII Whisper Performance/ SB III Whisper Performance/ SB3 Whisper Performance/ SB 3 Whisper Performance
CuijkHattinkT 1200R
TDII / TD II / TD2 / TD 2 /TD-2   
CoachRT1012                                                                                                                                                 
HattinkHeesch.comT/800
SPECTRUMDE2 / SPECTRUMDE3                                                                                                                                   
RDBII / RDB II / RDB2 / RDB 2 / RDB-2                                                                                                                       
HattinkT_600
T1000
MDII / MD II / MDIIMAX / MD II MAX / MD-II-MAX                                                                                                              
@HTPMDIITCIZ / MD II TCI Z / MD-II-TCI-Z / MD2TCIZ / MD 2 TCI Z / MD-2-TCI-Z                                                                                    
TS_500
TS_300
T/600R
UT800
URDIII50MAXTCIA / URD III 50 MAX TCIA / URD-III-50-MAX-TCIA / URD350MAXTCIA / URD 3 50 MAX TCIA / URD-3-50-MAX-TCIA                                         
MD200MT / MD 200 MT                                                                                                                                         
T1200RSpectrum
UT1200
MD-2TCI
T 1000M
KD II SR
UTS                                                                                                                                                         
T1000R
 SB-3 Whisper Performance
T 800
KDII / KD II / KD2 / KD 2 / KD-2
KDIIMAX / KD II MAX / KD-II-MAX / KD2MAX / KD 2 MAX / KD-2-MAX
TS 500
RD2TCIZEEC/RDII                                                                                                                                             
APIIX1012 / AP II X 1012                                                                                                                                    
RDMT / RD MT                                                                                                                                                
SL_300
SB11030 / SB 110 30 / SB-110-30                                                                                                                             
UT 800
UT_1200
SL100e / SL 100e                                                                                                                                            
MDIITCI
MD 200
MD 300
Hattink-ThermoPartsT_800R
SL400 / SL 400                                                                                                                                              
SL400e / SL 400e                                                                                                                                            
T600M
SBIII / SB III / SB3 / SB 3 / SB-3                                                                                                                          
T_800
MD100
MD/200
T_1000M
HRT1012 / HRT 1012                                                                                                                                          
SPECTRUMTS500 / SPECTRUM TS 500 / SPECTRUM-TS-500                                                                                                           
Hattink Heesch.nlTS600EEC / TS 600 EEC                                                                                                                                       
MDMT / MD MT                                                                                                                                                
TS 200
@HHSL100 / SL 100                                                                                                                                              
RDIITLE / RD II TLE / RD-II-TLE / RD2TLE / RD 2 TLE / RD-2-TLE                                                                                              
URDIII25DG / URD III 25 DG / URD-III-25DG / URD325DG / URD 3 25 DG / URD-3-25DG                                                                             
T1000M
HTP@T_600M
SLTCI / SL-TCI                                                                                                                                              
HattinkThermo-Parts.ComHRTI W 1012 COBUS 3000 / HRT I W 1012 COBUS 3000
T/1000
T800R
TS600EMEIA
TS/600
AMDM2 / AMD M2                                                                                                                                              
T 600M
URDIII50TCIA / URD III 50 TCIA / URD-III-50-TCIA / URD350TCIA / URD 3 50 TCIA / URD-3-5-TCIA                                                                
SL300
T600
CuijkHattinkSuperTDII / Super TD II / Super-TD-II / SuperTD2 / Super TD 2 / Super-TD-2                                                                                  
T 1000
SPECTRUMSLMultiTemp / SPECTRUM SL Multi Temp / SPECTRUM-SL-Multi-Temp                                                                                       
SB400
SL 300
MD2TCI/MD-2TCI/MDIITCI                                                                                                                                      
CDIIMAX / CD II MAX / CD-II-MAX / CD2MAX / CD 2 MAX / CD-2-MAX / CDIIMAXEEC / CD II MAX EEC / CD-II-MAX-EEC / CD2MAXEEC / CD 2 MAX EEC / CD-2-MAX-EEC       
MD2TCi
UT_800
FreshKing                                                                                                                                                   
SL200 / SL 200                                                                                                                                              
SGCO2000                                                                                                                                                    
T 600R
LNDIIEEC / LND II EEC / LND-II-EEC / LND2EEC / LND 2 EEC / LND-2-EEC                                                                                        
CuijkHattinkT 800R
MDII / MD II / MD2 / MD 2 / MD-2 TK374 Engine
HH@T800
T_570R
KingoftheRoad                                                                                                                                               
UT/1200
T800RSpectrum
T/600
SL/300
JDII / JD II / JD2 / JD 2 / JD-2                                                                                                                            
TS/500
T 1000R
TS 600
Hattink-ThermoPartsT1200R
TS300
                                                                                                                                                            
MD/300
HKIII/HK III/HK-3/HK3/HK 3                                                                                                                                  
KD-IISR
SDZ30EEC / SDZ 30 EEC / SDZ-30-EEC / SDZ50EEC / SDZ 50 EEC / SDZ-50-EEC                                                                                     
HattinkThermo-Parts.nlMD/100
AMDM2/AMD M2                                                                                                                                                
T570R
HattinkHeeschTDIIMAX / TD II MAX / TD-II-MAX / TD2MAX / TD 2 MAX / TD-2-MAX   
T1000Spectrum
TS500
Hattink-ThermoPartsMD 100
MDIIMAX / MD II MAX / MD-II-MAX / MD2MAX / MD 2 MAX / MD-2-MAX                                                                                              
TK486EEngine                                                                                                                                                
T 570R
SPECTRUMTS                                                                                                                                                  
MD300
TS_600
UT/1200X
T-600
KDIISR
HattinkCuijkTS200
SuperII30190Y / Super II 30 190Y / Super2 / Super 2                                                                                                         
T_1000R
T_1200R
HH@RDIIMAX
Hattink-ThermoPartsSBIII Magnum Whisper / SB III Magnum Whisper / SB3 Magnum Whisper / SB 3 Magnum Whisper / SB-3 Magnum Whisper
MD200
HattinkThermoPartsTS/300
SB210
UT1200X
APIIW1012 / AP II W 1012                                                                                                                                    
TCIZEEC/TC1ZEEC                                                                                                                                             
TCIEEC/TC1EEC                                                                                                                                               
UT 1200
TS-600
SL400eSR2 / SL 400e SR2 / SL-400e-SR2                                                                                                                       
TS-300
Bolt /