201-8390 Gear Pump | D10T Transmission Gear Pump Assembly Product Identification Core Part Details Primary Part Number: 201-8390 Alternative Part Numbers: 374-9554, 201-8389, 20R-7455, 30R-0153 Standard Numeric Format: 2018390 Part Name: Transmission Gear Pump Assembly (Heavy-Duty Hydraulic Pump for Bulldozer) Equipment Applications Compatible Caterpillar Models Primary Models: Caterpillar D10T (Heavy-Duty Bulldozer) Equipment Type: Ultra-Heavy-Duty Crawler Dozer (Mining & Large-Scale Earthmoving) Application System: Transmission Hydraulic System (Powers gear shifts and propulsion) Fitment Note: Verify with machine serial number to confirm correct pump specification Related Part Numbers Associated D10T Transmission Pump Series Related Part Numbers: 201-8389 (alternative), 374-9554 (replacement), 20R-7455 (reman reference), 30R-0153 (mounting kit) Core Repair Components Gear Pump Series Replacement Parts Pump Body: Cast aluminum/iron housing with integrated valve ports Gear Set: Drive & driven gear set for positive displacement flow Main Shaft & Bearing: Supports rotating assembly for high torque Seal Kit: Resolves external oil leakage and pressure loss issues Relief Valve: Regulates system pressure to prevent overloading Product Function & Features Component Category: Bulldozer Transmission Hydraulic Core Parts Function: Supplies pressurized hydraulic fluid for D10T dozer transmission and power train operations Design: Heavy-duty gear pump engineered for extreme load conditions in mining dozer applications Related Part Numbers NO P.N. NAME 1 708-1L-00111 Komatsu 708-1L-00111 Hydraulic Main Pump for D65-12 Crawler Dozer 2 6245-11-8120 Komatsu 6245-11-8120 O-Ring SAA6D170 Engine Valve Cover Seal 3 561-30-81101 Wheel Rim Assembly 561-30-81101 for Komatsu Heavy-Duty Machinery 4 6245-51-9100 Komatsu Oil Pump 6245-51-9100 - SAA6D170E-5C/5A-01/5-B EGR Valve Lubri... 5 4689079 Hitachi EX1900-5 EX1900-6 Hydraulic Pump 4689079 6 720-2M-00071 720-2M-00071 Main Hydraulic Pump for Komatsu D39-22 Bulldozer 7 21N-38-00080 Komatsu PC1250 PTO Assembly 21N-38-00080 / 21N-38-00082 8 723-64-22600 723-64-22600 Main Control Valve Assembly for Komatsu D85-15 Crawler Do... 9 208-26-63150 Komatsu Swing Carrier 208-26-63150 for PC1250-7 Excavator 10 708-1W-00450 708-1W-00450 Main Hydraulic Pump for Komatsu HM400-3 HM400-5 Articulat... 11 20S-60-72110 20S-60-72110 Main Hydraulic Pump Assembly for Komatsu PC30-7 Mini Hydr... 12 569-40-42502 569-40-42502 569-40-63302 Steering Valve Assembly fits Komatsu HD465 a... 13 708-1S-00970 708-1S-00970 708-7S-00550 Fan Pump Motor for Komatsu WA470-6 Wheel Loa... 14 709-10-53800 Komatsu Main Relief Valve Assembly 709-10-53800 15 547-9727 Caterpillar 547-9727 Swing Motor Rotary Motor for E395GC Excavator 16 723-64-21200 723-64-21200 Main Control Valve Assembly for Komatsu D60-12 D65PX-12 C... 17 723-62-11102 Komatsu 723-62-11102 Main Control Valve Assembly for D65E-12 D85E-12 C... 18 4390592 Hitachi EX1900 EX2500-5 EX2500-6 Fan Motor 4390592 19 6266-21-3400 6266-21-3400 Accessory Driver Assembly Alternator Drive 20 102-0783 102-0783 Hydraulic Main Pump for Caterpillar E307 307.5 21 272-6959 CAT SBS140 Hydraulic Pump 272-6959 FOR CAT E325D 22 707-88-26230 Komatsu Bucket Cylinder Assembly 707-88-26230 for PC2000-8 23 216-0038 216-0038 Hydraulic Main Pump for CAT 330C C9 Excavator Parts 24 708-2K-00014 708-2K-00014 Hydraulic Main Pump for Komatsu PC3000-6 PC4000-6 25 708-2H-00440 Komatsu PC1250 Hydraulic Main Pump 708-2H-00440 708-2H-00322 26 708-1L-00320 Komatsu 708-1L-00320 Hydraulic Main Pump for D65-15 Crawler Dozer 27 709-14-93500 Komatsu PC1250 Main Control Valve 709-14-93500 709-14-94001 709-15-940... 28 711-28-44351 711-28-44351 Torque Converter Cover for Komatsu HD785-5 HD985-3 Dump T... 29 6240-61-1106 Komatsu PC1250-7 Water Pump 6240-61-1106 30 3T-4449 3T-4449 Final Drive Assembly for CAT D7R Bulldozer
