Hydraulic Swing Motor 107-7054 for Caterpillar CAT 350 Excavator The 107-7054 hydraulic swing motor (often referred to as the rotary motor or slew motor) is a heavy-duty axial piston assembly designed exclusively for large scale tracked excavators. This high-pressure component converts fluid energy into structural torque, driving the upper carriage rotation smoothly and allowing for controlled, accurate positioning during rapid digging and loading cycles. Manufactured with precision-ground rotary groups, hard-wearing valve plates, and heavy-duty casing, it maintains system pressure and eliminates positional drift under maximum cross-terrain stress. Product Specifications Engineered to exact dimensional and hydraulic standards to ensure precise integration into heavy crawler machinery rotating mechanisms. Part Number: 107-7054 Alternative Format: 1077054 Product Class: Heavy Equipment Hydraulic Rotary & Swing Motors Design Configuration: Fixed Displacement Axial Piston Type Operating Pressure Compatibility: Up to 350 Bar (5,075 PSI) Cross-Reference & Interchangeable Part Numbers This high-torque rotary mechanism aligns with multiple factory component groups, supersessions, and repair listings: 121-1564 / 1211564 (Alternative Component Code) 5I-8728 / 5I8728 (Associated Valve Assembly Reference) 10R-7694 (Remanufactured Complete Assembly Reference) Application and Machinery Compatibility Accurately matched to ensure optimum structural speed balances and swift acceleration/deceleration cycles for the following large excavator lines: Compatible Caterpillar (CAT) Excavators 350 Series Crawler Excavators 350 L Series Long Undercarriage Excavators 330B / 330BL Series (Specific High-Output Configurations) Associated Powertrain Units Cat 3306T Diesel Engine-driven hydraulic systems Main hydraulic slew reduction gearboxes Installation and Hydraulic System Flushing Notes Technical Recommendation: Catastrophic rotary motor failures often release microscopic metallic shards throughout the immediate fluid paths. Prior to mounting the replacement 107-7054 motor, completely flush the swing circuit lines, empty and clean the primary hydraulic reservoir, and renew all filter elements. Case pressure settings must be checked at initial startup to ensure fluid circulation and prevent premature face seal blowouts. Related Part Numbers NO P.N. NAME 1 706-7K-01230 Komatsu PC1250-8 Swing Motor 706-7K-01230 Assembly Mining Excavator Pa... 2 3T-4449 3T-4449 Final Drive Assembly for CAT D7R Bulldozer 3 4667614 K3V63S Hitachi Hydraulic Fan Pump Assembly 4667614 for EX1200-6 Mining... 4 6261-41-4900 EGR Valve Assembly 6261-41-4900 for Komatsu PC450-8 5 21T-70-33131 Komatsu Connecting Rod Shim 21T-70-33131 21N-70-33221 for PC1250 PC200... 6 9J-5859 9J-5859 Hydraulic Cylinder Piston for Caterpillar D9L Dozer 7 569-40-42502 569-40-42502 569-40-63302 Steering Valve Assembly fits Komatsu HD465 a... 8 6245-71-1100 Komatsu PC1250-8 Fuel Injection Pump 6245-71-1100 9 17M-911-3530 Komatsu PC200-8 D65EX Cabin Air Filter 17M-911-3530 10 515-50-11731 Komatsu Head 515-50-11731 for HD465-7 HD785-7 HD985-3-5 11 HPK055 Hitachi HPK055/HPK060 Hydraulic Pump for ZX120/ZX130-5A 12 296-4727 296-4727 Cover Assembly for Caterpillar CAT Engine Oil Cooler Cover 13 AP2D25 AP2D25 Hydraulic Piston Pump for 2.5-3.5 Ton Mini Excavators 14 561-30-91104 Komatsu 561-30-91104 561-30-81101 Rim Assembly for HD465 HD785 15 600-211-1341 Komatsu Genuine Filter Kit 600-211-1341 600-319-5410 421-60-35170 16 198-30-68141 Komatsu D475A-5 Front Track Frame 198-30-68141 Heavy Mining Undercarri... 17 702-75-01900 Komatsu Valve Assembly 702-75-01900 for PC750SE-7 18 9285566 9285566 YB60000770 Main Hydraulic Pump Assembly for Hitachi ZAX130 19 438-3414 Caterpillar high pressure common rail assembly for C4.4 / C7.1 engine,... 20 705-95-05140 Komatsu Hydraulic Pump 705-95-05140 for HD605 21 708-2L-00681 Komatsu PC1250/PC1250-8 Hydraulic Components Fan/Travel/Swing Motors &... 22 21T-38-00160 21T-38-00160 PTO Assembly for Komatsu PC2000-8 PC2000-8R 23 709-14-93500 Komatsu PC1250 Main Control Valve 709-14-93500 709-14-94001 709-15-940... 24 618-7877 618-7877 Swivel Joint Oil Distributor for Caterpillar E395 25 708-1U-00151 708-1U-00151 Steering Fan Hydraulic Pump for Komatsu WA380-6 Wheel Loa... 26 22F-60-31600 Komatsu Solenoid Valve Assembly 22F-60-31600 for PC18MR-3 PC35MR-3 PC4... 27 295-9434 Caterpillar 374D 374F 365C Swing Motor 295-9434 Slewing Assembly 28 260-6650 260-6650 Final Drive Assembly for CAT D6R LGP Bulldozer 29 7249380 Fuel Injection Pump 7249380 400912-00219B for Heavy-Duty Diesel Engine...
