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Piston & Parts
  • 4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396
  • 4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396
  • 4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396
  • 4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396
  • 4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396
  • 4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396
4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396

4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396

$2.90-$12.90/ Piece|1 Piece/Pieces(Min. Order)
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4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Engine Power Conversion: The piston assembly efficiently converts combustion force into rotational motion via the connecting rod, driving engine operation in internal combustion systems.
  • Sealing Efficiency: Precision-engineered piston rings made of durable metal ensure a tight seal between the piston and cylinder wall, minimizing gas leakage and oil contamination.

Key features

  • 1. Material Technology

    • With corrosion-resistant aluminum alloy and steel construction, you can achieve durable performance while reducing engine weight compared to cast iron pistons*. The lightweight design enhances fuel efficiency and reduces mechanical strain.

  • 2. Interactive Design

    • With precision-engineered piston grooves and dual piston rings, you can ensure optimal sealing between the piston and cylinder walls, minimizing gas leakage and improving combustion efficiency*. The modular design allows easy installation and compatibility with standard engine configurations.

  • 3. Performance Parameters

    • With enhanced thermal resistance and low-friction surfaces, you can achieve up to 15% higher power output in HD250 engines compared to standard pistons*. The alloy-steel hybrid construction supports high RPM tolerance and prolonged operation under extreme conditions.

  • 4. Scenario Solutions

    • With customizable bore sizes and material compositions, you can adapt to diverse engine requirements for automotive, industrial, or marine applications*. The piston assembly is optimized for continuous operation in commercial settings and quick-response needs in high-performance engines.

  • 5. Certification Standards

    • With materials compliant with automotive industry standards (e.g., ISO/SAE specifications), you can ensure reliability and safety in high-stress environments*. The design meets strict durability benchmarks for commercial-grade engine use.

Product details

4D31 4D31T 6D31 6D31T Engine Piston ME012858 ME013312 ME012174 ME012145 ME012131 ME012160 ME997396

The 4D31/6D31 Engine Piston Assembly (ME012858, ME013312, etc.) is a high-performance component designed for HD250, CAPA, and 6D31 engine models. Crafted from premium aluminum alloy and steel, this assembly ensures durability, precision, and efficiency in internal combustion engines. The piston’s grooves and rings, paired with a robust connecting rod, optimize power transmission and minimize wear.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialAluminum alloy (piston) / Steel (rings)Heavy-duty engines (trucks, industrial machinery)
Bore DiameterCustomizable (4D31/6D31 standards)Engine rebuilds requiring precise fit
Weight1.2–1.5 kg (model-dependent)Lightweight applications for fuel efficiency
Durability Rating200,000+ cycles (ISO 9023)High-stress environments (e.g., mining equipment)

Customization guide

Adjust bore size, stroke length, or material composition (e.g., high-nickel steel for corrosion resistance) to meet specific engine requirements. Rings can be customized for temperature tolerance (up to 450°C) or pressure resistance (15–25 MPa).

Get inspired

Optimize your engine’s performance with this piston assembly. Whether you’re rebuilding a truck engine or upgrading industrial machinery, its robust design ensures longevity and reliability.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
MaterialAluminum (standard)Aluminum alloy (+15% strength)Premium alloy (+30% strength)*
Weight1.5 kg1.4 kg (-6.7% lighter)1.3 kg (-13.3% lighter)
Durability200,000 cycles250,000 cycles300,000 cycles
Temperature Range-30°C to 400°C-40°C to 450°C-50°C to 500°C

*Premium alloy meets SAE J1286 Grade 8 standards.

Supplier's note

  1. Three Technical Breakthroughs:

    • Material Innovation: The Pro Model’s premium alloy provides 30% higher tensile strength than industry benchmarks, enabling use in extreme-temperature environments.
    • Weight Optimization: With a lighter design, the Advanced Model reduces engine friction by 12%, improving fuel efficiency.
    • Sealing Precision: Enhanced ring grooves (±0.01mm tolerance) ensure minimal gas leakage, boosting combustion efficiency by 18%.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard automotive applications (e.g., passenger trucks) where cost-efficiency is prioritized.
    • Advanced Model: Suitable for medium-duty engines (e.g., agricultural machinery) requiring balanced performance and longevity.
    • Pro Model: Designed for heavy-duty industrial use (e.g., mining equipment) where extreme durability and heat resistance are critical.

With the Pro Model’s 500°C temperature tolerance, you can safely operate in harsh environments. Pair it with its lightweight alloy to reduce engine strain and extend maintenance intervals.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
High-Durability PistonsHeavy machinery, industrial enginesAlloy 7075-T6 (Yield Strength: 570 MPa▲ vs Industry Standard 450 MPa)Withstands extreme loads (ASTM E8/E9) for 10,000+ hours (▲20% longer lifespan)Higher cost (+25%); bulkier design increases inertia
Lightweight PistonsHigh-performance motorcycles, racingAluminum 6061-T6 (2.1 kg▲ vs Industry Standard 2.5 kg)15% lighter reduces rotational inertia for faster accelerationLower load tolerance; unsuitable for prolonged high-heat environments
Low-Noise PistonsResidential generators, commercial HVAC43 dBA (▲5 dB quieter than Industry Standard 48 dBA)Meets ISO 3744 for silent operation; ideal for urban settings10% higher cost due to specialized damping grooves
High-Temperature PistonsDiesel engines, marine applicationsHeat-resistant steel (400°C continuous operation▲ vs Industry Standard 350°C)Maintains integrity at extreme temps (ASTM E119); 30% longer stroke lifeHeavier material increases fuel consumption; slower cooling response
Cost-Effective PistonsStandard automotive, light commercialCast iron (3.2 kg) with ISO 2372 vibration complianceAffordable base solution; compatible with most engine typesLimited to 500 hp max; prone to wear in harsh chemical environments
Customizable PistonsSpecialty engines, aftermarket buildsAdjustable bore/stroke (ISO 2372-certified adaptability)Tailored to specific RPM ranges (▲20% efficiency gain for custom specs)Requires 2-week lead time; higher engineering costs

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