Item 7139050 has must read information.
: For cab enclosure kit without heater use p/n 7139050. For cab enclosure with heater use p/n 1001120405. Please see the attached pdf file for instructions to assemble #7139050. 
: 3128466 

CAB ENCLOSURE - LEGACY (FIELD)

$17,544.12
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7139050

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: 72  : 36  : 57  : 400

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EA
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CAB ENCLOSURE - LEGACY (FIELD) - 7139050