Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Komatsu D155A-1 D155A-2 Final Drive Gearbox 175-27-3125 | High-Torque Planetary","imgUrl":"https:\/\/img.chinax.com\/nimg\/2f\/e3\/a0ed35fa232a777ed3cd1b6445ca-200x200-1\/komatsu_d155a_1_d155a_2_final_drive_gearbox_175_27_3125_7c_high_torque_planetary.jpg","attrs":{"Minimum Order Quantity":"1 PCS","Applicable Machine Model\uff1a":"Komatsu D155A-1 D155A-2 175-27-3125","Certification":"CE\uff0c ISO","Brand":"IRON CAVALRY"}}
{"title":"High Quality SANY SY485 Excavator Hydraulic Travel Motor with Gearbox Replacemen","imgUrl":"https:\/\/img.chinax.com\/nimg\/f9\/53\/b7269ae3b8b0688ec10c5d247073-200x200-1\/high_quality_sany_sy485_excavator_hydraulic_travel_motor_with_gearbox_replacement_part.jpg","attrs":{"Certification":"CE\u3001ISO","Brand Name":"IRON CAVALRY","Condition\uff1a":"NEW\/REBUILT","Delivery Time":"5-8 Weekdays"}}
{"title":"Final Drive M4V290\/170D GM85VA For SANY SY485 DOOSAN DX520 KOBELCO SK460","imgUrl":"https:\/\/img.chinax.com\/nimg\/19\/3f\/7f4ced34e75eea1397acebfa37fc-200x200-1\/final_drive_m4v290_2f170d_gm85va_for_sany_sy485_doosan_dx520_kobelco_sk460.jpg","attrs":{"Place of Origin":"China","Delivery Time":"5-8 Weekdays","Condition\uff1a":"NEW\/REBUILT","Payment Terms":"Western Union,T\/T"}}
{"title":"Use For Hitachi EX100-3 EX120-3 Excavators Travel Assembly 9133168 9122946 Final","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/78\/4d8f00cb0f2c46c432cfec6b2c09-200x200-1\/use_for_hitachi_ex100_3_ex120_3_excavators_travel_assembly_9133168_9122946_final_drive_motor_gearbox_device_high_quality_construct.jpg","attrs":{"Brand Name":"IRON CAVALRY","Model Number":"Hitachi EX100-3 EX120-3 Excavators Travel Assembly 9133168 9122946 Final Drive Motor Gearbox Device High Quality","Place of Origin":"China","CertifiTQCATion":"CE\uff0c ISO"}}
{"title":"Heavy Duty Final Drive Complete Travel Motor Assembly 144-5196 for TQCAT 301 301","imgUrl":"https:\/\/img.chinax.com\/nimg\/71\/54\/918d4c1741f8d46c30063c9aff43-200x200-1\/heavy_duty_final_drive_complete_travel_motor_assembly_144_5196_for_tqcat_301_301_5_301_6_mini_crawler_excavator_premium.jpg","attrs":{"Packaging Details":"Wooden case or as required","Brand Name":"IRON CAVALRY","Payment Terms":"Western Union,T\/T","Supply Ability":"300pcs \/Month"}}
{"title":"Use For CAT 349D2 352F 349E 349F Excavators Travel Assembly 513-0982 513-0981","imgUrl":"https:\/\/img.chinax.com\/nimg\/e8\/fd\/cd3ef1342be0020671efe4978c2e-200x200-1\/use_for_cat_349d2_352f_349e_349f_excavators_travel_assembly_513_0982_513_0981_513_0979_518_1211_527_7097_final_drive_assembly_devi.jpg","attrs":{"Brand Name":"IRON CAVALRY","Model Number":"CAT 349D2 352F 349E 349F Excavators Travel Assembly 513-0982 513-0981 513-0979 518-1211 527-7097 Final Drive Assembly Device High Quality","Place of Origin":"China","CertifiTQCATion":"CE\uff0c ISO"}}
{"title":"Heavy-Duty Final Drive Motor fits Komatsu PC220-7 PC220LC-7 | 206-27-00422 |","imgUrl":"https:\/\/img.chinax.com\/nimg\/f8\/71\/2da7df3af892c05ce1fb803b9872-200x200-1\/heavy_duty_final_drive_motor_fits_komatsu_pc220_7_pc220lc_7_7c_206_27_00422_7c_rugged_earthmoving_traction_assembly.jpg","attrs":{"Applicable Industries\uff1a":"MECHANICAL REPAIR SHOPS, RETAIL, CONSTRUCTION, ENERGY, MINING","Brand Name":"IRON CAVALRY","Model Number":"Heavy-Duty Final Drive Motor fits Komatsu PC220-7 PC220LC-7 | 206-27-00422","Price":"Negotiable price"}}
Komatsu D155A-1 D155A-2 Final Drive Gearbox 175-27-3125
High-Torque Planetary Reduction Assembly | Heavy-Duty Crawler Dozer Traction Unit
The 175-27-3125 Final Drive Gearbox is a heavy-duty track propulsion unit engineered specifically for Komatsu D155A-1 and D155A-2 bulldozers in the 35-40 ton machine class. This integrated drivetrain combines a high-torque axial piston travel motor with a multi-stage planetary reduction gearbox, delivering the exceptional drawbar pull and structural integrity required for heavy dozing, ripping, and land clearing operations in mining, quarry, and large-scale earthmoving applications.
Product Name
Komatsu D155A-1 D155A-2 Final Drive Gearbox 175-27-3125 | High-Torque Planetary Reduction Assembly | Heavy-Duty Crawler Dozer Traction Unit
Part Number
Komatsu D155A-1 D155A-2 175-27-3125
Brand
IRON CAVALRY
Place of Origin
CHINA
Condition
Original & OEM
Warranty
12 months
MOQ
1 piece
Production Capacity
1000 pieces per month
Standard or Nonstandard
Standard
Payment Terms
L/C, T/T, Western Union, Trade Assurance
Delivery Time
3-7 days (depending on order)
Means of Transport
By Sea, Air or DHL/FEDEX/TNT/EMS
Quality Guarantee
We check and send detailed pictures to buyers for confirmation before shipment
Regional Application & Market Suitability
These D155A series bulldozers operate in extreme conditions worldwide, and our final drive gearboxes are configured to withstand region-specific operational challenges:
North America & Europe: Upgraded with reinforced planetary carriers and oversized taper roller bearings to handle continuous high-load cycles in coal mining overburden removal, highway construction, and heavy landfill compaction operations
Southeast Asia & Oceania: Equipped with heavy-duty Duo-Cone floating seals and corrosion-resistant output shaft coatings to prevent contamination from abrasive volcanic soils, tropical clay, and coastal saline environments in plantation development and marine reclamation projects
Middle East & South America: Enhanced thermal management through optimized oil circulation galleries and enlarged heat dissipation surfaces on the motor housing, maintaining stable operating temperatures during extended ripping and dozing operations in desert conditions exceeding 50°C ambient temperature
Key Features & Performance Advantages
High-Torque Planetary Reduction: Multi-stage planetary gearset with optimized reduction ratios delivers maximum tractive effort for deep blade penetration in rocky terrain and ripping in fractured bedrock while maintaining productive travel speeds for cycle time efficiency in large-scale earthmoving operations
Cross-Generation Compatibility: Engineered to fit both D155A-1 and D155A-2 undercarriage configurations, providing a unified replacement solution for mixed fleet maintenance programs across different machine series generations
Structural Durability: Induction-hardened sun gears, carburized planetary pinions, and heat-treated alloy steel housing resist pitting, spalling, and structural cracking under repetitive shock loading from heavy dozing in abrasive materials and ripping in consolidated rock formations
Direct OEM Replacement: All mounting bolt hole patterns, hydraulic port thread configurations (SAE O-ring boss and JIC 37° flare), and pilot line locations match original Komatsu specifications for seamless installation without undercarriage modifications or adapter plates
Expert Maintenance Guidance
Hydraulic System Care: Routinely monitor case drain flow rate during every service interval; flow exceeding 18 L/min indicates internal motor wear requiring immediate teardown and rebuild inspection. Replace hydraulic return filters every 200 operating hours and pilot filters every 400 hours in severe dust conditions to prevent contaminant circulation through travel motor circuits
Gear Oil Management: Drain and replenish planetary gearbox oil every 500 operating hours under moderate conditions, or every 250 hours in severe dust, high-temperature, or high-moisture environments. Use SAE 85W-140 API GL-5 gear oil for maximum load-carrying capacity under heavy shock loading; verify floating seal compatibility before substituting synthetic oils
Mounting Hardware Protocol: Always install new OEM-specification mounting bolts with high-strength thread locker compound rated for extreme vibration applications. Tighten in a three-stage cross-pattern sequence at 40%, 70%, and 100% of specified torque to achieve uniform clamping force and prevent housing distortion under severe load conditions
Pre-Operation Priming Procedure: Before initial engine start following final drive replacement, completely fill the travel motor housing with clean ISO VG 68 hydraulic oil through the uppermost port. Rotate the output sprocket manually in both directions using a pry bar to expel trapped air from piston chambers, then verify oil level before startup to prevent catastrophic dry-start damage to piston shoes, cylinder block, and valve plate surfaces
About IRON CAVALRY
Guangzhou Tieqi Construction Machinery Co., Ltd. (IRON CAVALRY) is strategically located in Guangzhou's Huangpu District. With nearly 15 years of experience, we specialize in engineering machinery hydraulics and are committed to delivering practical solutions and upholding our responsibilities.
Manufacturing Facility Exterior
Factory Production Line
Trade Show Exhibition
Professional Team
Technical Leadership & Standards
Our efficient execution and rigorous manufacturing approach ensure our products meet over 95% of original performance specifications. This commitment has built widespread trust in the industry.
Product & Inventory Capability
We maintain a ready inventory of over 500 assembly types, providing access to more than 6,000 different parts. Hydraulic pump, control valve, travel, and swing assemblies are our core products, with particular expertise in large mining excavator components and hard-to-find items.
Packaging & Delivery
For large items, we use sturdy plywood crates secured with metal fasteners. Products are cushioned with bubble wrap and secured with wooden braces, with special attention given to protecting vulnerable parts. External reinforcement includes high-strength PET plastic strapping and waterproof wrapping.
Secure Product Packaging Example
Why Choose IRON CAVALRY?
One-stop solution provider for all hydraulic component needs
High-quality products at competitive prices
Exceptional customer service and support
Large inventory, short delivery times, and long warranty periods
Professional expertise with accurate part number identification
Introduction to Guangzhou Tieqi Construction Machinery Company
Founded in 2010 and headquartered in Guangzhou, China, Guangzhou Tieqi Construction Machinery Co., Ltd. is an integrated manufacturing and trading company specializing in hydraulic system components for construction and mining machiner...
Introduction to Guangzhou Tieqi Construction Machinery Company
Founded in 2010 and headquartered in Guangzhou, China, Guangzhou Tieqi Construction Machinery Co., Ltd. is an integrated manufacturing and trading company specializing in hydraulic system components for construction and mining machiner...
