6HP26: fits codes 1068 010 112, 120, 123, 134, 151, 153, 154, 155, 166, 167, 168, 169, 170, 171, 172, 173, 174, 182, 183

6HP26X: fits codes 1068 020 060, 061

6HP28: fits codes 1068 040 001, 002, 008, 009, 010, 011, 014, 015, 016

6HP28X: fits codes 1068 050 001, 002, 003, 004, 007, 008, 009, 010, 011, 012, 013, 014, 015, 022