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198-27-45421/198-27-45422 PLANETARY GEAR for KOMATSU D475A

198-27-45421 and 198-27-45422 Planetary Gears are precision-engineered final drive components designed for Komatsu D475A-5E0 and D475ASD-5E0 bulldozers. These gears operate within the two-stage final drive reduction system, transmitting torque from the travel motor to the sprocket to propel the machine under heavy loads. Manufactured from high-strength alloy steel with carburized and hardened gear teeth, they deliver exceptional wear resistance and load-carrying capacity in continuous mining and heavy earthmoving operations.

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ItemSpecification
Product NamePLANETARY GEAR
Part Number198-27-45421 / 198-27-45422
BrandKomatsu
Machine ModelKomatsu D475A-5E0, D475ASD-5E0 Bulldozers
WeightApprox. 8–12 kg per gear (final drive component)
MaterialHigh-strength alloy steel with precision gear-tooth machining and carburized heat treatment
ConditionBrand New – Genuine
Warranty6 Months
PackagingStandard Export Carton
AvailabilityGenerally in stock
OriginChina

Features & Benefits

  • Genuine Komatsu planetary gears designed specifically for D475A-5E0 and D475ASD-5E0 final drive assemblies
  • Critical components in the two-stage final drive reduction system, transmitting torque from the travel motor to the sprocket
  • Manufactured from high-strength alloy steel with carburized and hardened gear teeth
  • Precision-machined to exact OEM specifications for proper meshing with mating planetary components
  • Exceptional wear resistance and load-carrying capacity for continuous heavy-duty operation
  • Direct replacement parts that restore final drive integrity and minimize downtime
  • Essential for maintaining propulsive force and operational efficiency in mining and earthmoving applications
  • Factory-inspected for dimensional accuracy and gear-tooth profile

Compatible Machine

These planetary gears are compatible with:

  • Komatsu D475A-5E0 Bulldozer (S/N 30001-UP, 30147-UP)
  • Komatsu D475A-5E0 Mining Specification (S/N 30001-UP, 30147-UP)
  • Komatsu D475ASD-5E0 Super Dozer Specification (S/N 30001-UP)

These gears are components within the final drive assembly (part numbers 198-27-00680 / 198-27-00681 for R.H.).

If you’re unsure whether these gears match your machine, simply provide your machine serial number (S/N), and our technical team will verify compatibility before shipment.

Applications

The 198-27-45421/198-27-45422 planetary gears are designed for heavy equipment operating under demanding conditions, including:

  • Open-pit Mining
  • Quarry Operations
  • Large-scale Earthmoving
  • Heavy Construction
  • Infrastructure Development

Their robust construction and precision engineering make them reliable choices for maintaining final drive integrity in continuous production environments.

Why Choose YLCM?

YLCM specializes in supplying genuine Komatsu parts and high-quality aftermarket alternatives to customers worldwide.

We provide:

  • 20+ Years of Industry Experience
  • Genuine & OEM Parts
  • Large Warehouse Inventory
  • Fast Worldwide Delivery
  • Competitive Factory Pricing
  • Professional Export Packaging
  • Technical Support Before and After Sales
  • Export Experience Serving 60+ Countries

In addition to planetary gears, we supply a full range of engine components, hydraulic parts, undercarriage parts, filters, and electrical components for Komatsu machinery.

Packaging

Every planetary gear is professionally packed to ensure safe international transportation.

Packaging options include:

  • Export-standard wooden crates
  • Anti-vibration protection
  • Rust-proof treatment
  • Moisture-proof protection
  • Heavy-duty steel frame
  • Sea freight
  • Air freight

Each unit is securely packaged to minimize transportation risks and ensure arrival in excellent condition.

Shipping

We offer flexible shipping solutions to meet your project timelines:

  • Sea Freight (FCL/LCL)
  • Air Freight

Our logistics team will confirm the final lead time and shipping solution based on your destination.

Request a Quote

Looking for the 198-27-45421/198-27-45422 PLANETARY GEAR for KOMATSU D475A?

Contact YLCM today to receive:

  • Latest Quotation
  • Delivery Lead Time
  • Packing Details
  • Shipping Solutions
  • Technical Support
  • OEM Part Verification

Our experienced sales team will respond promptly with a competitive quotation and professional service tailored to your project requirements.

Frequently Asked Questions

Q: Is this a genuine Komatsu part?
A: We supply both genuine Komatsu parts and high-quality aftermarket alternatives. Please contact us with your preference, and we will be happy to assist.

Q: How do I confirm these gears are correct for my machine?
A: To ensure perfect compatibility, please provide your machine model and serial number (S/N) to our team. These gears are designed for D475A-5E0 and D475ASD-5E0 models with specific S/N ranges. We will verify the match for you promptly.

Q: What is the warranty on this product?
A: This product comes with a standard 6-month warranty against manufacturing defects.

Q: What is the typical shipping time?
A: This item is generally in stock. The final lead time will be confirmed when we provide your official quote, based on your destination and shipping method preference.

Q: What is the function of these planetary gears?
A: These gears operate within the final drive assembly, transmitting torque from the travel motor to the sprocket through a two-stage reduction system to propel the bulldozer under heavy loads.

Q: Are both part numbers required for a complete set?
A: The part numbers 198-27-45421 and 198-27-45422 refer to specific gear positions within the final drive assembly. Please provide your machine serial number for exact quantity and configuration verification.

Q: Do you offer technical support for installation?
A: Yes, our professional technical support team is available to assist you both before and after the sale.