A-CT-O-D3B23Y1Caterpillar Equipment Operator Manual
(23Y1>, 24Y1>, 27Y1>, 28Y1>)
A-MNL18067Caterpillar Equipment Parts Manual
(27Y1>)
A-MNL18068Caterpillar Equipment Parts Manual
(2PC1>)
A-CT-S-D3BBKHOCaterpillar Equipment Service Manual
(Backhoe Only 32W1, 68H1>)