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  • 4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale
  • 4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale
  • 4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale
  • 4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale
  • 4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale
  • 4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale
4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale

4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale

  • 1 - 4 Pieces
    $970
  • >= 5 Pieces
    $920
View product details

4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Diesel Engine Compatibility: Designed as a replacement cylinder block for Isuzu and Hitachi diesel engines (4JJ1/4JK1 series), ensuring seamless integration into existing truck and heavy machinery systems.
  • Heat Dissipation & Lubrication: Features robust cooling fins and optimized oil/coolant galleries to enhance thermal efficiency and prolong engine lifespan under high-stress conditions.

Key features

  • 1. Material Technology

    • With corrosion-resistant cast iron construction, ensure long-lasting durability under extreme engine stress and high-temperature conditions.

  • 2. Interactive Design

    • With modular bolt-hole design and reinforced assembly points, allow easy disassembly and maintenance, reducing downtime during repairs.

  • 3. Performance Parameters

    • With enhanced cooling fins and optimized oil galleries, maintain consistent engine temperatures and lubrication, improving longevity by ~20% compared to standard designs.

  • 4. Scenario Solutions

    • Designed for Isuzu/Hitachi diesel engines, ensure seamless integration and performance in heavy-duty truck operations, supporting high torque demands and rugged environments.

  • 5. Certification Standards

    • Complies with ISO/SAE standards for diesel engine components, ensuring reliability, safety, and environmental compliance.

Product details

4JJ1 4JK1 Engine Part Empty Cylinder Block Engine Block Replace Part for Sale

The 4JJ1/4JK1 Diesel Engine Block is a robust, cast-iron component designed for heavy-duty truck engines. Engineered for durability and efficient cooling, this block features four cylinder bores, reinforced walls, and integrated cooling fins. Compatible with Isuzu and Hitachi diesel engines, it ensures seamless performance in demanding applications.

Technical specifications

FeatureSpecificationBenefit
MaterialCast ironEnsures high strength and thermal stability
Cylinder Count4 cylindersSupports robust power output for trucks
Cooling SystemCooling fins + internal coolant passages20% faster heat dissipation than standard designs
CompatibilityIsuzu/Hitachi diesel engines (4JJ1/4JK1)Direct OEM fitment for easy replacement
Bolt ConfigurationPre-drilled assembly holesSimplifies installation and maintenance

Customization guide

Adjustable parameters include bore diameter (±0.2mm tolerance) and cooling passage depth to optimize thermal performance for specific engine configurations. Ideal for customizing repair kits or performance upgrades.

Get inspired

With its rugged cast-iron construction and advanced cooling design, this engine block is perfect for rebuilding or enhancing diesel engines in commercial trucks. Its modular design allows tailored modifications for extreme environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Thermal Efficiency85%+15% (98%)+30% (110.5%)
Load Capacity1,500 N·m1,800 N·m2,200 N·m
Corrosion ResistanceASTM G85 Grade 2ASTM G85 Grade 3ASTM G85 Grade 4*

Supplier's note

  1. Technical Breakthroughs:

    • Cast Iron Material: Provides 40% higher tensile strength than aluminum, ensuring longevity in harsh conditions.
    • Enhanced Cooling: Finned design reduces operational temperatures by 15°C compared to flat blocks.
    • Modular Bolt System: Allows 30% faster assembly than traditional designs.

  2. Version Selection Guide:

    • Base Model: Ideal for standard truck maintenance in moderate climates.
    • Advanced Model: Suitable for medium-duty commercial fleets requiring higher load capacity.
    • Pro Model: Designed for heavy-duty applications (e.g., mining trucks) where extreme corrosion resistance and thermal efficiency are critical. With its ASTM G85 Grade 4 rating, the Pro Model withstands corrosive environments 3x longer than industry standards. Pair it with high-viscosity oils for seamless operation in extreme temperatures.

Frequently asked questions

  • Which diesel engine block suits Isuzu 4JJ1/4JK1 trucks for heavy-duty use?

  • How to clean coolant passages in a 4JJ1/4JK1 engine block?

  • Cast iron vs aluminum engine blocks: Why choose cast iron for diesel engines?

  • Can the 4JJ1/4JK1 engine block be customized for performance upgrades?

  • Is the 4JJ1/4JK1 engine block certified for commercial truck use?

  • Which engine block fits Hitachi trucks with 4JK1 diesel engines?

  • How often should I inspect oil galleries in a 4JJ1 engine block?

  • Can I machine this engine block for non-stock cylinder sizes?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Cast Iron Diesel Engine BlockHeavy-duty trucks, construction vehicles- Cast iron (ASTM A48 Class 30)
- 4-cylinder design
- Cooling fins (43 dBA▲)		▲ Durability: Withstands extreme pressures (250+ bar)
▲ Heat Resistance: Operates at 120°C+ without deformation		Heavy weight (320 kg)
Limited corrosion resistance without coating
Aluminum Diesel Engine BlockPassenger trucks, light commercial vehicles- Aluminum alloy (ASTM B221)
- Lightweight (200 kg▲)
- Noise level: 48 dBA		▲ Weight Reduction: 25% lighter than cast iron
▲ Fuel Efficiency: Lower inertia improves MPG		▲ Cost: 30% higher than cast iron
▲ Durability: Prone to warping at 150°C+
Steel Diesel Engine BlockIndustrial machinery, mining equipment- High-carbon steel (ASTM A36)
- Reinforced walls (thickness: 12mm▲)		▲ Strength: Tensile strength 420 MPa
▲ Corrosion Resistance: Passivated surface (ASTM A967)		▲ Weight Penalty: 350 kg
▲ Complexity: Requires frequent lubrication
Industry Standard Diesel BlockGeneral commercial vehicles- Cast iron (ISO 8178 compliance)
- Noise: 52 dBA
- Weight: 300 kg▲		▲ Cost-Effective: 20% cheaper than premium variants
▲ Widespread Compatibility: Fits 90% of diesel trucks		▲ Performance: Lower RPM tolerance (≤4,500 RPM)
▲ Durability: 10% shorter lifespan under heavy loads
High-Performance Diesel BlockRacing trucks, high-output applications- Forged alloy (ASTM A747)
- Enhanced cooling (38 dBA▲)
- Lightweight (280 kg)		▲ Power Output: Supports 600+ HP
▲ Heat Dissipation: 15% faster cooling via optimized fins		▲ Cost: 50% premium over standard blocks
▲ Maintenance: Requires specialized servicing
Lightweight Composite BlockEco-friendly vehicles, hybrid trucks- Polymer-reinforced composite (ISO 1043)
- Weight: 180 kg▲
- Noise: 45 dBA		▲ Eco-Friendly: 20% lower CO₂ emissions
▲ Fuel Savings: 15% improvement vs cast iron		▲ Durability Limit: Max 150 bar pressure
▲ Repair Difficulty: Non-recyclable material

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