Soft Caterpillar 3525611-00. GCM34 V3.1 PROD/nECM 2 and 3 (Aux1/Slave 1 an | d Aux2/Slave 2)/nApplications: EPG & PET for | 12 & 16 cylinder/nET SOGAV Trim range : -8 t | o +5 %/nSpecific Gravity: 0.59/nTurbo Speed M | ax: 3410