Komatsu 20Y-27-00101 final drive for Komatsu PC200-6 PC200LC-6 excavator
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Nabtesco GM18VL-K-31/52 22B-60-22110 final drive for Komatsu PC130-8 PC138US-8 PC138USLC-8 excavator
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1. Product Overview
The final drive for the Komatsu PC200-6 is a precision-integrated propulsion unit featuring a high-torque variable displacement axial piston motor and a multi-stage planetary reduction gearbox. These units are engineered to withstand the rigorous demands of heavy construction, from deep trenching to steep-slope tracking. With 13 years of expertise in Komatsu hydraulic transmissions, we provide drives that restore original factory tractive effort and synchronized tracking speed.
2. Comprehensive OEM Part Number Compatibility
This assembly is a 100% direct "bolt-on" replacement for the following Komatsu factory part numbers. Note that Dash-6 machines used several iterations of the final drive; our units are cross-compatible with all standard Dash-6 configurations.
Gearbox / Final Drive Housing:
20Y-27-00101 / 20Y2700101
20Y-27-00102 / 20Y2700102
20Y-27-00200 / 20Y2700200
20Y-27-00201 / 20Y2700201
20Y-27-00202 / 20Y2700202
20Y-27-00203 / 20Y2700203
Travel Motor Assembly:
708-8F-00060 / 7088F00060
708-8F-00061 / 7088F00061
708-8F-00110 / 7088F00110
708-8F-00111 / 7088F00111
Machine Fitment:
Komatsu PC200-6 / PC200LC-6
Komatsu PC210-6 / PC210LC-6
Komatsu PC220-6 / PC220LC-6 (Verify sprocket bolt pattern)
3. Technical Specifications & Performance
Motor Type: 2-speed axial piston motor with integrated high/low travel speed switching.
Reduction Architecture: Multi-stage planetary gears made from high-strength, induction-hardened alloy steel.
Max Working Pressure: Rated for continuous operation up to 34.3 MPa (343 bar) to match original factory tractive effort.
Sealing Technology: Features premium "Duo-Cone" (Mirror) mechanical floating seals to protect the gear system from mud, water, and abrasive grit.
Brake System: Integrated spring-applied, hydraulic-release wet disc parking brake for failsafe operation on inclines.
4. Why Partner With a 13-Year Industry Expert?
Performance Calibration: We understand the specific hydraulic requirements of the Dash-6 series. Our units ensure your machine tracks perfectly straight, eliminating the "pulling" common with lower-quality drives.
100% Bench Testing: Every final drive undergoes a rigorous load test. We verify volumetric efficiency, brake holding torque, and smooth 2-speed shifting before crating.
Factory-Direct Value: Access Original New or Premium OEM-spec units at competitive wholesale prices, bypassing significant dealership markups.
Global Rapid Logistics: Units are secured in reinforced, shock-proof export crates. Express delivery via DHL, FedEx, or UPS typically arrives in 3 to 7 business days.
5. Critical Installation & Maintenance Protocol
Gear Oil Commissioning: Final drives are shipped without gear oil. You must fill the planetary gearbox with SAE 80W-90 gear oil (approx. 4.5–5.5 liters) before operation.
Case Drain Connection: Ensure the case drain line is clear. Excessive backpressure in the motor case is the leading cause of shaft seal blowout and internal motor damage.
System Flushing: If the previous motor failed mechanically, you must flush the hydraulic tank and lines. Residual metal shavings will destroy a new motor almost immediately.
Air Bleeding: After installation, lift the track and run the motor at low speed for several minutes to purge air from the hydraulic circuit.
6. Ordering & Professional Support
Fitment Verification: Please provide your Machine Serial Number and the number of sprocket mounting holes (commonly 21) to ensure 100% accuracy.
Instant Quote: Contact us today for up-to-date pricing, availability, and tiered quality options.
Technical Guidance: Our expert team is available 24/7 to assist with installation procedures, hydraulic pressure settings, and troubleshooting.