John Deere PowerTech 8.1L Diesel Engines Level 9 Electronic Fuel System with Denso High Pressure Common Rail Component Technical Manual (CTM255) Price listed in US Dollar: $45.00 Leave this field blank Complete Component Technical Manual for John Deere PowerTech 8.1L Diesel Engines Level 9 Electronic Fuel System with Denso High Pressure Common Rail. Read more about John Deere PowerTech 8.1L Diesel Engines Level 9 Electronic Fuel System with Denso High Pressure Common Rail Component Technical Manual (CTM255)