Kit installation is recommended every 320,000 pages. Includes: - fuser unit assembly, - transfer belt cleaner assembly, - 2nd transfer roll assembly, - suction filter, - feed rolls (4 each), - pick rolls (4 each), - separation rolls (4 each)Compatible Printers: Lexmark X 950 DHE, Lexmark X 952 DHE, Lexmark C 950 DE, Lexmark X 950 Series, Lexmark X 954 DHE, Lexmark X 954 Series, Lexmark X 950 DE, Lexmark X 952 DTE, Lexmark X 952 Series, Lexmark X 952 DE, Lexmark X 954 DE