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Diesel Engine Part QSK78 Cylinder Head Gasket Kit 4955812 5406085

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Sealing Cylinder Heads: Designed to prevent leaks and ensure airtight performance in Caterpillar QSK78 diesel engines, critical for maintaining engine efficiency and longevity.
  • Multi-Component Compatibility: Includes a comprehensive range of gaskets and seals in varying shapes/sizes to fit diverse engine components, ensuring precise sealing across different parts of the mechanical system.

Key features

  • 1. Material Technology

  • With heat-resistant and corrosion-resistant rubber compounds, ensure durable sealing in high-temperature diesel engine environments.

  • 2. Scenario Solutions

  • Designed for continuous operation in commercial or industrial machinery, preventing leaks in demanding environments like heavy-duty vehicles or engines.

  • 3. Performance Parameters

  • Compatible with Caterpillar QSK78 engine models, ensuring precise sealing under high-pressure cylinder head conditions.

  • 4. Interactive Design

  • Modular design allows easy installation and adaptation to various cylinder head configurations, reducing downtime during maintenance.

  • 5. Certification Standards

  • Backed by a 6-month warranty and engineered to meet automotive industry standards for durability and safety.

Product details

Diesel Engine Part QSK78 Cylinder Head Gasket Kit 4955812 5406085

The Diesel Engine Part QSK78 Cylinder Head Gasket Kit (4955812/5406085) is a comprehensive sealing solution designed for diesel engines, ensuring leak-proof performance in harsh mechanical environments. Crafted from durable rubber compounds, this kit includes gaskets and seals in varied sizes and shapes to fit critical engine components. Backed by a 6-month warranty, it guarantees reliability for automotive, industrial, or heavy machinery applications.

Technical specifications

FeatureSpecificationBenefit
MaterialHeat-resistant silicone rubberWithstands extreme temperatures up to 220°C
Temperature Range-40°C to 220°CEnsures performance in extreme environments
Pressure Tolerance300 psiPrevents leaks under high mechanical stress
CompatibilityCaterpillar QSK78 diesel enginesPrecision-engineered for exact fit
Warranty6 monthsPeace of mind for critical engine parts

Customization guide

Adjustable parameters include material thickness (0.5–2.0mm) and shape customization to meet specific engine tolerances. For high-temperature applications, opt for reinforced silicone blends.

Get inspired

This versatile gasket kit is ideal for maintaining engine integrity in demanding scenarios. Whether repairing a diesel generator, heavy-duty truck, or industrial machinery, the kit’s durability and precision ensure long-term reliability.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Temperature Range-30°C to 200°C+15% (-40°C to 220°C)+30% (-40°C to 230°C)
Pressure Tolerance250 psi300 psi350 psi
Chemical ResistanceStandardOil-resistantTriple industry standard (harsh fluids)

Supplier's note

  1. Key Breakthroughs:

    • Material Composition: A proprietary silicone blend improves thermal stability by 20% compared to standard gaskets.
    • Temperature Range: The Pro Model’s -40°C to 230°C tolerance exceeds industry benchmarks, enabling use in Arctic or desert environments.
    • Chemical Resistance: The Pro’s triple-standard rating allows safe handling of corrosive fluids like diesel exhaust fluid (DEF).
  2. Version Selection Guide:

    • Base Model: Ideal for routine maintenance in moderate environments (e.g., light-duty trucks).
    • Advanced Model: Choose for engines operating in extreme heat (e.g., industrial generators) or with frequent oil changes.
    • Pro Model: Required for heavy machinery exposed to extreme temperatures or corrosive chemicals (e.g., mining equipment).

With the Pro Model’s chemical resistance and high-temperature tolerance, you can ensure zero leaks even in aggressive operating conditions. Pair its reinforced material with the kit’s precise fit to reduce downtime and maintenance costs.

Frequently asked questions

  • Which diesel engines are compatible with the Diesel Engine Part QSK78 Cylinder Head Gasket Kit 4955812 5406085?

  • How do I install the Cylinder Head Gasket Kit for my diesel engine?

  • Why is rubber the preferred material for these gaskets in diesel engines?

  • Is the QSK78 Gasket Kit certified for heavy-duty machinery use?

  • How does this gasket kit address diesel engine-specific challenges?

  • What makes this gasket kit a comprehensive solution for engine maintenance?

  • What does the 6-month warranty cover for the Diesel Engine Part QSK78 Gasket Kit?

  • How are the gaskets protected during shipping to prevent damage?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-temperature engine compartments
Industry: Nitrile rubber (ASTM D2000)
Base: Heat-resistant silicone (ISO 374-1, ▲20% thermal stability)
Advanced: Ceramic-reinforced composite (SAE J2000, ▲40% thermal stability)
Advanced materials withstand extreme thermal cycling (e.g., diesel exhaust systems)Advanced variants may require specialized installation tools (▲ indicates improvement over industry standard)
Temperature ResistanceDiesel engines in extreme environments
Industry: Up to 150°C (SAE J183)
Base: 180°C (▲20%)
Advanced: 220°C (▲47%)
Advanced version maintains integrity in prolonged high-heat scenarios (e.g., turbocharged engines)Base versions may degrade faster in prolonged high-temperature use (▲ indicates improvement over industry standard)
Pressure ToleranceHigh-pressure combustion chambers
Industry: 50 psi (ASTM F37)
Base: 75 psi (▲50%)
Advanced: 100 psi (▲100%)
Advanced prevents leaks in high-compression diesel engines (e.g., heavy machinery)Advanced materials add weight, potentially affecting engine balance (▲ indicates improvement over industry standard)
Durability/Wear ResistanceHeavy machinery with frequent cycles
Industry: 500 operational hours (ISO 1210)
Base: 1,000 hours (▲100%)
Advanced: 1,500 hours (▲200%)
Advanced reduces downtime for mining/industrial equipment (e.g., 24/7 operations)Advanced materials may harden over time, risking seal failure (▲ indicates improvement over industry standard)
Installation CompatibilityRetrofitting older engines
Industry: Model-specific fitment
Base: Universal design (▲50% compatibility)
Advanced: Customizable sizing (▲100% adaptability)
Advanced fits non-standard engines (e.g., vintage or modified machinery)Customization requires professional calibration (▲ indicates improvement over industry standard)
Chemical ResistanceExposure to fuels/coolants
Industry: Resists 10 chemicals (ASTM D543)
Base: 25 chemicals (▲150%)
Advanced: 50+ chemicals (▲400%)
Advanced withstands aggressive additives in biodiesel blends (e.g., ethanol mixtures)Enhanced chemical resistance may reduce flexibility in low-temperature conditions (▲ indicates improvement over industry standard)

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