HMGE21 9289617 transmisión final para John Deere 130G 135D 135G 130 135 P-Tier excavadora midi
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1. OEM Part Number & Machine Compatibility
Original travel motor model: Hitachi HMGE21 two-speed integrated final drive (hydraulic travel motor + 3-stage planetary reduction gearbox)
John Deere full assembly OEM part number: 9289617
Auxiliary interchange split codes: 9289614 (travel motor only), PG200514 (motor replacement code)
Fully compatible midi excavator models: John Deere 130G, 130 P-Tier, 135D, 135G, 135 P-Tier
9289617 is the complete unit combining hydraulic motor and reduction gearbox; all matching split part numbers share identical mounting flange, sprocket hub, hydraulic A/B feed & drain port layout, fully cross-replaceable direct bolt-on aftermarket replacement without track frame or pipeline modification
2. Core Technical Specifications
Structure type: Two-speed variable displacement hydraulic travel motor (Stage 1: Low Speed High Torque / Second Stage: High-Speed Travel) + three-stage planetary reduction gear reducer
Dual motor displacement: 48 / 76 cm³/rev
Total gear reduction ratio: 45
Second Stage Specified High-Speed Travel Parameters
Rated working pressure (second stage): 30.0 MPa
Maximum relief pressure (second stage): 31.5 MPa
Rated operating speed (second stage): 3000 rpm
Corresponding rated input power (second stage): 40.8 kW
Max output climbing torque: 21200 N·m
Dual travel speed range: 28~48 rpm, perfectly matched to factory hydraulic system of 13–14 ton John Deere midi excavator platform
Mounting bolt PCD, sprocket tooth size, oil port position strictly conform to John Deere OEM dimensional drawings
Gearbox & motor casing adopt high-strength ductile iron; internal pistons, valve plates, planetary gears, carrier and bearings use quenched wear-resistant alloy steel for long heavy-load service life
3. Internal Structure & Functional Introduction
Dual-displacement travel motor provides two working modes: Stage 1 low-speed high torque for muddy ground, slope climbing and heavy excavation; Second-stage high-speed mode for flat ground fast transfer
Built-in multi-disc spring-applied hydraulic release mechanical parking brake, stable holding performance on steep slopes to prevent track sliding
Three-stage planetary reduction gear set amplifies hydraulic motor torque to drive track sprocket, stable continuous power output under long digging and loading loads
Integrated built-in anti-cavitation valve and shock relief valve to absorb hydraulic pressure surges, effectively protect motor core components from hydraulic impact damage
Compact integrated final drive layout fits perfectly inside the track frame space of JD130/135 series D/G/P-Tier midi excavators
4. Product Advantages
Standard aftermarket replacement, 1:1 OEM casting outer dimensions, plug-and-play installation, no cutting or reworking of hydraulic pipelines, track frame or mounting brackets
Every finished aftermarket final drive passes full hydraulic bench inspection before shipment, including two-speed switching test, pressure stability, internal leakage test and brake holding torque verification
Complete overhaul spare parts in stock: floating seal, piston shoe assemblies, swash plate, valve plate, planetary gear sets, carrier, bearings and full seal repair kits for independent component replacement during maintenance
Single full-assembly OEM number covers five machine variants, simplify spare part ordering, stock classification and inventory management for machinery dealers and repair shops
Standard 12-month full warranty for aftermarket unit, stable performance matching genuine original Hitachi HMGE21 travel motor assembly
5. Packaging & Global Delivery Details
Motor oil ports and output spline shaft coated with anti-rust grease and sealed with dust-proof protective plugs
Whole final drive wrapped with moisture-proof plastic film and fixed inside export-grade solid wooden crate to avoid collision and damp corrosion during long-distance sea or air transportation
In-stock aftermarket units can be dispatched within 3–5 working days after order confirmation
Multiple global shipping solutions available: international air express, sea LCL/FCL bulk shipment, overland truck transport for North American & Southeast Asian markets
6. FAQ
Q: Is 9289617 interchangeable with 9289614 and PG200514?
A: Yes, 9289617 is the full motor+gearbox assembly; 9289614 and PG200514 are standalone motor part numbers, all compatible and combinable for all listed John Deere models.
Q: Can this HMGE21 travel motor install directly on 130G, 130 P-Tier, 135D, 135G, 135 P-Tier?
A: Yes, unified mounting size and factory-matched two-speed hydraulic calibration enable direct bolt-on fitting for all five models without extra adjustment or modification work.
Q: What is the relation between HMGE21 and OEM part number 9289617?
A: HMGE21 is the official Hitachi original travel motor model designation, while 9289617 is the exclusive full-assembly OEM part number assigned by John Deere for this complete final drive unit.
Q: Are separate repair spare parts available for this final drive?
A: Matching full overhaul seal kits, piston shoe assemblies, valve plates, swash plates, planetary gear carriers and independent floating seal spare parts are all available for partial overhaul and single component replacement work.