2019-6-14 · The CRII system can be retrofitted at the ECOLINE compressors 4FES-3(Y) to 6FE-50(Y) on all cylinder heads. With 8GE-50(Y) to 8FE-70(Y) it is pos-sible on both outer cylinder banks. For this purpose, it is just necessary to replace the standard cylinder heads with a CRII kit (chapter 8.2). The CRII system is backwards com-patible. The previous ...