https://servicepartmanuals.com/partmanual/komatsu-d39ex-22-d39px-22-bulldozer-shop-manual-sen04041-07-2016/
Komatsu D39EX-22 D39PX-22 Bulldozer Shop Manual SEN04041-07 2016
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https://alxageopark.org/komatsu-dozer-travel-motor/komatsu-d39px-22.html
Komatsu D39PX-22 Reman Dozer Travel Motor - China Kobelco Hydraulic Final Drive Motor Supplier