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Machinery Engine Parts
  • PC400-6 PC400-7 PC450-6 PC450-7 Excavator 6D125 S6D125 SAA6D125 Engine Cylinder Block 6154-21-1100 6151-22-1100 6251-21-1100
  • PC400-6 PC400-7 PC450-6 PC450-7 Excavator 6D125 S6D125 SAA6D125 Engine Cylinder Block 6154-21-1100 6151-22-1100 6251-21-1100
  • PC400-6 PC400-7 PC450-6 PC450-7 Excavator 6D125 S6D125 SAA6D125 Engine Cylinder Block 6154-21-1100 6151-22-1100 6251-21-1100
PC400-6 PC400-7 PC450-6 PC450-7 Excavator 6D125 S6D125 SAA6D125 Engine Cylinder Block 6154-21-1100 6151-22-1100 6251-21-1100

PC400-6 PC400-7 PC450-6 PC450-7 Excavator 6D125 S6D125 SAA6D125 Engine Cylinder Block 6154-21-1100 6151-22-1100 6251-21-1100

  • >= 1 Pieces
    $5,000

Customization:

Customized packaging（Min.Order: 50 pieces）
View product details

PC400-6 PC400-7 PC450-6 PC450-7 Excavator 6D125 S6D125 SAA6D125 Engine Cylinder Block 6154-21-1100 6151-22-1100 6251-21-1100

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Performance Diesel Engine Block: Designed for excavators (PC400/PC450 series) and compatible with engine models 6D125/S6D125/SAA6D125. Built to withstand heavy-duty operations, delivering robust power output and thermal efficiency through its water-cooled design.
  • Durability & Reliability: Constructed from high-grade steel, ensuring longevity under extreme pressures and temperatures. The integrated oil gallery and cooling system optimize lubrication and heat dissipation for consistent performance.

Key features

  • 1. High-Grade Steel Construction for Enhanced Durability

    • With a robust steel material, this engine cylinder block delivers superior resistance to wear, corrosion, and extreme temperatures compared to cast iron alternatives*. This ensures longevity in heavy-duty excavator operations.

  • 2. Modular Design for Seamless Customization

    • Engineered with customizable mounting points and compatibility with excavator models like the PC400/PC450 series, this block simplifies installation and upgrades, adapting to diverse machinery configurations.

  • 3. Advanced Water-Cooled Cooling System

    • With integrated water-cooling technology, this block maintains optimal operating temperatures even during prolonged use, preventing overheating and enhancing engine reliability under heavy loads.

  • 4. Optimized for Heavy Machinery Applications

    • Designed specifically for diesel-powered excavators, this cylinder block ensures consistent power output and durability in demanding construction environments, supporting continuous operation.

  • 5. Compliance with Industrial Safety Standards

    • Manufactured to meet rigorous industrial safety and durability standards, this block guarantees safe and efficient performance in heavy machinery setups.

Product details

PC400-6 PC400-7 PC450-6 PC450-7 Excavator 6D125 S6D125 SAA6D125 Engine Cylinder Block 6154-21-1100 6151-22-1100 6251-21-1100

The PC400-6/PC400-7/PC450-6/PC450-7 Excavator Engine Cylinder Block (6D125) is a robust steel component designed for heavy-duty diesel engines. Engineered for excavators like Komatsu models, it combines durability with precision engineering to ensure optimal performance in demanding construction and industrial applications.

Technical specifications

FeatureSpecificationBenefit
Engine Model6D125Fits excavators like PC400-6/7, PC450-6/7
Engine TypeDieselHigh power output for heavy machinery
MaterialSteelEnhanced strength and heat resistance
Cylinders6-cylinder inlineReliable power delivery for intensive use
Cooling SystemWater-cooledEfficient heat dissipation
LubricationIntegrated oil galleryEnsures smooth component operation
Warranty3 monthsCovers manufacturing defects

Customization guide

Adjustable bore size and cooling system modifications can be tailored to meet specific engine configurations or performance requirements.

Get inspired

With its robust steel construction, this cylinder block ensures long-term durability in harsh environments. Its water-cooled design and optimized oil gallery system make it ideal for excavators operating in high-temperature or prolonged-duty scenarios.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Horsepower125 HP140 HP (+12%)155 HP (+24%)
Operating Hours2000 hrs3000 hrs (+50%)4000 hrs (+100%)
Fuel Efficiency3.2 L/kW3.0 L/kW (-6%)2.8 L/kW (-12%)
Weight280 kg275 kg (-2%)270 kg (-4%)

Supplier's note

  1. Technical Breakthroughs:

    • Steel Material: Enhances structural integrity, enabling operation under extreme pressures.
    • Advanced Cooling System: Reduces thermal stress by 20% compared to traditional designs.
    • Optimized Oil Gallery: Extends component lifespan by ensuring uniform lubrication.

  2. Version Selection Guide:

    • Base Model: Ideal for standard excavator operations requiring reliable performance at an entry-level cost.
    • Advanced Model: Suited for mid-tier applications needing improved fuel efficiency and extended operating hours.
    • Pro Model: Best for heavy-duty, high-cycle operations where peak horsepower and longevity are critical. For instance, the Pro’s 155 HP output and 4000-hour durability make it perfect for large-scale construction projects.

With the Pro’s tripled corrosion resistance compared to industry standards, you can safely operate in corrosive environments. Pair its lightweight steel alloy with the optimized oil gallery to reduce maintenance downtime by up to 30%.

Frequently asked questions

  • Which excavator models are compatible with the PC400-6/PC400-7/PC450-6/PC450-7 6D125 engine cylinder block?

  • How do I maintain the 6D125 engine cylinder block for optimal performance?

  • Why is steel the preferred material for the 6D125 engine cylinder block?

  • Can the 6D125 cylinder block be customized for non-standard engine setups?

  • Is the 6D125 engine cylinder block certified for industrial use?

  • What does the 3-month warranty cover for the 6D125 cylinder block?

  • Which part numbers correspond to the 6D125 engine cylinder block for the PC450-7 excavator?

  • Is the 6D125 cylinder block suitable for reused or refurbished engines?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Engine Model CompatibilityHeavy machinery (PC400/PC450 excavators)Designed for 6D125 engine series (PC400-6/7, PC450-6/7)Direct fitment ensures optimal performanceLimited to specified excavator models
Material ConstructionHarsh construction environmentsHigh-strength steel (ASTM A36)Withstands extreme pressures/temperatures ▲Heavier than aluminum blocks (▲10% weight)
Cooling System DesignHigh-temperature operationsWater-cooled with optimized cooling finsEfficient heat dissipation (▲15% vs air-cooled)Requires regular coolant maintenance
Warranty CoverageShort-term project use3-month manufacturer warrantyCost-effective for budget-conscious buyersShorter than competitors' 12-month warranties
Cylinder ConfigurationHeavy-duty excavation tasks6-cylinder inline layout (ISO 817:2016)Balanced power delivery ▲ (350 Nm torque)Larger footprint vs 4-cylinder engines
Emissions ComplianceRegulated markets (e.g., EU/NA)Meets Euro IV emissions standardsLegal compliance in strict regionsMay require additional emissions hardware

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