Volvo 1800S  
670241 Volvo #670241 with 4 pins ch 6.001-30.000
   
Volvo 1800E  
670241 ch 30.001-37.xxx
Volvo #6848041 with 4 pins  
Volvo 1800ES  ch 1-1.117
rear ch1118 Volvo #670241 with 4 pins ch 6.001-30.000
   
Volvo 1800ES  ch 1.118-8.077
nopic Volvo #670241 with 4 pins ch 6.001-30.000